The statement "Luby's MIS algorithm is likely to finish in O(log n) parallel steps, where n is the number of vertices." is true because a vertex selecting each group is equal.
An independent set in a graph is a set of vertices that do not share any edges.
The algorithm starts by having each vertex randomly assign itself to one of two groups. The processors then communicate with each other to identify vertices that belong to a group with no neighbors in the same group. These vertices are then marked as part of the MIS.
In each round of communication, the number of vertices in the MIS doubles. This means that the algorithm will converge in O(log n) parallel steps, where n is the number of vertices in the graph.
The complexity of the algorithm is therefore very efficient, and it can handle large graphs with many vertices.
To know more about MIS algorithm here
https://brainly.com/question/22984934
#SPJ4
a quality control inspector has drawn a sample of 17 light bulbs from a recent production lot. suppose 30% of the bulbs in the lot are defective. what is the probability that between 3 and 6 (both inclusive) bulbs from the sample are defective? round your answer to four decimal places.
Answer: This is a binomial distribution problem with parameters n = 17 and p = 0.3, where n is the sample size and p is the probability of a defective bulb. We need to find the probability that between 3 and 6 (both inclusive) bulbs from the sample are defective.
Let X be the number of defective bulbs in the sample. Then X has a binomial distribution with parameters n = 17 and p = 0.3, i.e., X ~ B(17, 0.3).
We want to find P(3 ≤ X ≤ 6). Using the binomial probability formula, we have:
P(3 ≤ X ≤ 6) = P(X = 3) + P(X = 4) + P(X = 5) + P(X = 6)
= (17 choose 3)(0.3^3)(0.7^14) + (17 choose 4)(0.3^4)(0.7^13) + (17 choose 5)(0.3^5)(0.7^12) + (17 choose 6)(0.3^6)(0.7^11)
≈ 0.1566 (rounded to four decimal places)
Therefore, the probability that between 3 and 6 (both inclusive) bulbs from the sample are defective is approximately 0.1566.
Step-by-step explanation:
pls help with both problems due tmrw
Based on the description of the problem,the measure of ∠BTX is 60°.
What is circle?A circle is a two-dimensional geometric shape made up of all the points that are equally spaced apart from the circle's centre.
The radius of the circle is the distance measured from any point on the circle to its centre.
The circumference is the collection of all the points on the circle.
Based on the description of the problem, we can conclude that triangle BOX is an isosceles triangle with OB = OX. This is because both OB and OX are radii of the same circle centered at O.
Since m/BOX = 120°, we can find the measure of angle B by dividing this angle in half, since angle B is the base angle of the isosceles triangle BOX.
∠BO = (180° - 120°)/2 = 30°
Now, since TX and TB are tangent to the circle at points X and B respectively, we know that angle BTX is equal to the sum of angles BOY and OXT, since angle BOY and OXT are both in the same quadrant and add up to 90°.
∠BTX = ∠BOY + ∠OXT>
Since triangle BOX is an isosceles triangle with angle BOY equal to 30°, we can find the measure of angle OXT as follows:
∠OXT = 180° - ∠BOX - ∠BOY
= 180° - 120° - 30°
= 30°
Therefore,
∠BTX = ∠BOY + ∠OXT
= 30° + 30°
= 60°
To know more about angle visit:
https://brainly.com/question/31197652
#SPJ1
a right circular cylinder is inscribed in a sphere of radius r. find the largest possible surface area of such a cylinder
For a inscribed right circular cylinder in sphere of radius r, largest possible surface area of such a cylinder is equals to the [tex]= πr²( 1 + \sqrt{5}) [/tex].
The maximum or minimum value of a continuous function can be determined by derivatives of the function. If y= f(x) is a continuous function, Then slope of function at extreme points( maximum or minimum) is zero, [tex]\frac{dy}{dx} =0[/tex]. Let's consider r be the radius of the sphere and is a constant. Let R and h be the radius and height of the cylinder that can be inscribed in a sphere of radius r as shown in the above figure. By Pythogoras Theorem, base radius of cylinder as,[tex]R =\sqrt{ r²-\frac{h²}{4}}[/tex]
Surface area of cylinder, S = 2πRh + 2πR²
=> [tex]S= 2πh\sqrt{ r²- \frac{h²}{4}} + 2π(r²- \frac{h²}{4}) \\ [/tex]. We need to calculate height of cylinder such that surface area is maximum. For surface area to be maximum, [tex] \frac{dS}{dh} =0[/tex]
[tex]2πh \frac{1}{2\sqrt{ r² - \frac{h²}{4}}}( \frac{ - 2h}{4} ) + 2π\sqrt{ r² - \frac{h²}{4}} + 2π \frac{(-2 )h}{4} = 0 \\ [/tex]
=>[tex] \frac{- h²}{4\sqrt{ r² - \frac{h²}{4}} } + \sqrt{ r² - \frac{h²}{4}} - \frac{h}{2} = 0[/tex]
=> [tex]- h² + 4 ( r² - \frac{h²}{4} ) - 2h\sqrt{ r² - \frac{h²}{4}} = 0 \\ [/tex]
[tex]- 2h² + 4r² - 2h\sqrt{ r² - \frac{h²}{4}} = 0[/tex]
=>[tex]- 2h²+ 4r² = 2h\sqrt{r²- \frac{h²}{4}}[/tex]
Squaring on both sides, [tex]4h^{4} + 16r⁴ - 16r²h² = 4h² ( r² - \frac{h²}{4}) = 0 \\ [/tex]
[tex]h^{4} + 4r⁴ - 4r²h² = h² r² - \frac{h⁴}{4} = 0 \\ [/tex]
=> [tex]5h^{4} + 4r⁴ - 5r²h² = 0 [/tex]
which is Quadratic equation with h² variable, so using quadratic formula for determining the values of h², [tex]=4r^{2} ( \frac{5 ± \sqrt{5}}{10})[/tex]. Since we need largest possible surface area, we will consider, [tex]h² = 4r²( \frac{ 5 - \sqrt{5}}{10})[/tex]
=> [tex]r² - \frac{h²}{4} = r²( \frac{ 5 + \sqrt{5}}{10})[/tex]
Substituting the values in the surface area equation, [tex]S= 2πh\sqrt{ r² - \frac{h²}{4}} + 2π(r² - \frac{h²}{4}) \\ [/tex]
[tex]= 4πr²(\sqrt{ \frac{5 - \sqrt{5}}{10}})(\sqrt{ \frac{ 5 + \sqrt{5}}{10}} )+ 2πr²( \frac{ 5 + \sqrt{5}}{10}) \\ [/tex]
[tex]= 2πr²( \frac{ 4\sqrt{5}}{10} + \frac{ 5 + \sqrt{5}}{10} ) \\ [/tex]
=> [tex]= πr²( 1 + \sqrt{5}) [/tex]
Hence, required area is [tex]= πr²( 1 + \sqrt{5}) [/tex].
For more information about surface area, visit:
https://brainly.com/question/27440983
#SPJ4
an accountant claims the the average amount of a tax refund is less than 250 dollars. if the account wants to conduct a hypothesis test, should they use a left-, right-, or two-tailed hypothesis test to analyze whether the average amount of a tax refund is less than 250 dollars? select the correct answer below: left-tailed test right-tailed test two-tailed test
The accountant should use a left-tailed hypothesis test to analyze whether the average amount of a tax refund is less than 250 dollars.
A left-tailed test is used when the null hypothesis states that the population mean is greater than or equal to a certain value, and the alternative hypothesis states that the population mean is less than that value. In this case, the null hypothesis would be that the average amount of a tax refund is greater than or equal to 250 dollars, and the alternative hypothesis would be that the average amount is less than 250 dollars.
what is average amount?
The average amount, also known as the mean, is a measure of central tendency that represents the sum of a set of values divided by the total number of values in the set. It gives an idea of the typical value or the central value of a dataset.
To learn more about average amount visit:
brainly.com/question/31368214
#SPJ11
what is equivelent to −2y−8+4y khan academy
The equivalent expression is 2(y-4).
What is an expression?
A statement with more than two variables or integers can be written as an expression using addition, subtraction, multiplication, and division operations.
What is equivalent?Even though they have different looks, expressions that are equivalent do the same action. Two algebraic expressions that are equivalent have the same value when the variable is entered with the same value.
We have,
-2y - 8 + 4y
-2y and 4y are like terms.
So,
Add the like terms.
2y - 8
Taking out 2 commons.
2(y - 4)
Now,
We can not further simplify the expression.
Thus,
The equivalent expression is 2(y - 4).
Learn more about expressions here:
https://brainly.com/question/14083225
#SPJ1
In 2007, Jessica earned p dollars, where p > 100,000. She was paid monthly. Express the
amount her employer contributed to her Social Security tax in February algebraically.
The algebraic expression representing her employee's contribution to Social Security Tax is given as follows:
p > 516.67.
How to obtain the algebraic expression?The algebraic expression representing her employee's contribution to Social Security Tax is obtained applying the proportions in the context of the problem.
An year is composed by 12 months, hence the monthly salary is represented as follows:
p > 100000/12
p > 8,333.33.
The Social Security tax is of 6.20%, hence the expression is given as follows:
p > 8,333.33 x 0.062
p > 516.67.
More can be learned about proportions at https://brainly.com/question/24372153
#SPJ1
Bob's gift shop sold a record number of cards for Mother's Day. One salesman sold 46 cards, which was 10% of the cards sold for Mother's Day. How many cards were sold for Mother's Day?
The total 460 cards are sold on Mothers day.
Given that, Bob's gift shop sold a record number of cards for Mother's Day.
One salesman sold 46 cards, which was 10% of the cards sold for Mother's Day.
Let the number of cards sold on mothers day be x.
Here, 10% of x =46
10/100 ×x= 46
10x=4600
x=460
Therefore, total 460 cards are sold on Mothers day.
To learn more about the percentage visit:
brainly.com/question/24159063.
#SPJ1
While Brian traveled, the pilot taught him
O how to steer a Cessna 406
O how to fill the gas tank on the Cessna 406
O how to read the instrument panel on the Cessna 406
While Brian traveled, the pilot taught him A. how to steer a Cessna 406.
What is a Cessna 406?The Cessna 406 is a twin-engine aircraft that is commonly used for various purposes, such as air ambulance services, freight transport, and surveillance operations. Steering the aircraft is an essential skill that any pilot must learn in order to control the aircraft's direction of flight.
Learning how to steer a Cessna 406 would be an important skill for Brian to acquire if he was planning to become a pilot or work in the aviation industry.
Find out more on pilots at https://brainly.com/question/24873179
#SPJ1
A small radio transmitter broadcasts in a 40 mile radius. If you drive along a straight line from a city 55
miles north of the transmitter to a second city 51 miles east of the transmitter, during how much of the
drive will you pick up a signal from the transmitter?
miles
Answer:
We can use the Pythagorean theorem to find the distance between the transmitter and the second city:
c² = a² + b²
c² = 55² + 51²
c² = 3026
c ≈ 55.01
So the transmitter is about 55.01 miles away from the second city.
To determine how much of the drive will pick up a signal, we can draw a circle with a radius of 40 miles centered at the transmitter, and see which part of the line connecting the two cities is within this circle.
We can see that the line connecting the two cities intersects the circle at two points, forming a right triangle with one leg measuring 40 miles. We can use trigonometry to find the length of the other leg:
sin(theta) = opposite/hypotenuse
sin(theta) = 40/c
csin(theta) = 40
a = csin(theta)
a = 55.01*sin(theta)
Now we need to find the angle theta, which can be found using inverse tangent:
tan(theta) = opposite/adjacent
tan(theta) = 55/51
theta = tan⁻¹(55/51)
theta ≈ 49.72 degrees
So we can substitute this value of theta into the equation we found earlier for a:
a ≈ 43.89
Therefore, the length of the line segment within the circle is approximately 43.89 miles. To find the length of the entire line segment connecting the two cities, we can use the Pythagorean theorem again:
b² = c² - a²
b² = 55.01² - 43.89²
b ≈ 33.6
So the entire length of the line segment connecting the two cities is approximately 33.6 miles. Therefore, the portion of the drive during which you will pick up a signal from the transmitter is 43.89/33.6 = 1.31 hours or about 79 minutes.
Identify the function that possesses a period of 16 units, a midline at y=3, and a maximum at y=8.
The function that possesses a period of 16 units, a midline at y=3, and a maximum at y=8 is f(x) = 5 sin(π/8 x) + 3
Identifying the sine functionThe sine function with a period of 16 units, a midline at y=3, and a maximum at y=8 can be written in the form:
y = A sin(Bx) + C
where A is the amplitude, B is the frequency (related to the period), and C is the vertical shift (related to the midline).
The frequency is related to the period by the formula: B = 2π/period.
So, in this case,
B = 2π/16 = π/8.
So, we have
y = A sin(π/8x) + C
Using the list of options as a guide the sine function that satisfies these conditions is f(x) = 5 sin(π/8 x) + 3
Read more about sinusoidal function at
https://brainly.com/question/12050240
#SPJ1
Solve each one of the following equations and check your result. 4x+7=9
Solving the equation 4x + 7 = 9 will give value of x = 1/2
To solve we will use the equation
4x + 7 = 9
By subtracting 7 from both side we get
4x + 7 -7 = 9 -7
4x = 2
By diving 4 from both sides we get
4x/4 = 2/4
x = 1/2
To check we put the value of x in the equation we get
4(1/2) + 7 = 9
2 + 7 = 9
9 = 9
Hence the value of x is satisfying the equation
Therefore, the value of x is 1/2
To know more about equation click here :
https://brainly.com/question/14686792
#SPJ4
please answer only if you know the answer.
The dimensions of the net for the cube lampshade which fits into the sheet of plastic with dimensions 20 cm by 15 cm indicates;
5. The area of each square of (5 cm)² on the sheet of plastic, indicates that the area of the net comprising of six squares is 150 cm²
6. The percentage of the plastic sheet wasted is 50%
What is a cubic shape?
A cubic shape is a shape that consists of six square faces, twelve edges and eight vertices. The area of each square face of side length s = Side length, s × Side length, s.
5. The surface area of the net in the figure can be calculated by finding the sum of the area of the squares within the area of the net.
The number of squares in the figure are 6 squares
The area of each square = (5 cm)²
The area of the sheet of plastic = 20 cm × 15 cm = 300 cm²
The area of the net containing six squares is therefore;
Area = 6 × (5 cm)² = 150 cm²
The surface area of the net is 150 cm²6. The amount of plastic sheet wasted can be obtained by finding the difference between the area of the plastic and the area of the net
Area of the sheet of plastic = 20 cm × 15 cm = 300 cm²
Area of the net = 150 cm²
Amount of the plastic sheet wasted = 300 cm² - 150 cm² = 150 cm²Therefore, the percentage of the plastic sheet wasted is (150/300) × 100 = 50%Learn more on the area of a net here: https://brainly.com/question/26581443
SPJ1
Solve the equation. Round to the nearest tenth if necessary. x^2=36
Answer:
x = 6
Step-by-step explanation:
Solve for x:
[tex]x^2=36[/tex]
Take the square root of 36
[tex]x=6[/tex]
Which of the following is often provided by your employer at no cost?
O life insurance
O 403 (B)
O 401 (K)
O healthcare
O life insurance is often provided by your employer at no cost
Many employers often provide life insurance coverage at no cost as part of their employee benefits package.
O life insurance.
The other options, 403(B), 401(K), and healthcare, usually require employee contributions or have shared costs between the employer and the employee.
Employers may provide different benefits packages, and the specific benefits offered can vary from one employer to another.
However, it is common for employers to provide healthcare coverage at no cost to employees.
Life insurance, 403(B), and 401(K) plans may also be offered by some employers, but they may not always be provided at no cost to the employee.
It's essential to check with your employer's human resources department to determine which benefits are offered and whether there are any associated costs.
For similar question on life insurance.
https://brainly.com/question/30197814
#SPJ11
Giovanna deposited $1600 into two different savings account she deposited half of the money at first Oak and the other half at West United how much interest will she have earned from both accounts at the end of five years ?
Answer: $8000r
Step-by-step explanation:
Assuming that both savings accounts earn the same interest rate over the five-year period, Giovanna would have earned the same amount of interest on both accounts.
If she deposited half of the money, which is $1600/2 = $<<1600/2=800>>800, into each account, then the total amount of money she deposited into savings is $800 + $800 = $1600.
Let's say the interest rate on both accounts is r, expressed as a decimal. The amount of interest Giovanna earns on the Oak account after five years would be:
Interest on Oak account = $800 * r * 5
Similarly, the amount of interest she earns on the West United account after five years would be:
Interest on West United account = $800 * r * 5
The total amount of interest she earns from both accounts would be the sum of these two amounts:
Total interest = Interest on Oak account + Interest on West United account
= ($800 * r * 5) + ($800 * r * 5)
= $1600 * r * 5
= $8000r
So, the total amount of interest Giovanna will have earned from both accounts at the end of five years is $8000r. The actual value of r would depend on the interest rate offered by each savings account.
Please Help :))) If DE| |AB, by the Side Splitter Theorem, ...
If DE| |AB, by the Side Splitter Theorem, We can conclude that DE is parallel to AB if and only if CD/DA = CE/EB or x/y = z/w.
What is Side Splitter Theorem?The Side Splitter Theorem is a geometric theorem that relates the lengths of the sides of a triangle and the segments formed when a line is drawn parallel to one of the sides of the triangle.
Specifically, if a line is drawn parallel to one side of a triangle, then it divides the other two sides proportionally.
In other words, if a line intersects two sides of a triangle and is parallel to the third side, then the lengths of the segments it divides on the other two sides are proportional to the lengths of those sides.
If DE is parallel to AB, then by the Side Splitter Theorem, we have:
CD/DA = CE/EB
Substituting the given variables, we get:
x/y = z/w
We can also use the fact that triangles CDE and ABC are similar, which implies that their corresponding sides are proportional. Specifically, we have:
CD/AB = CE/AC = DE/BC
Substituting the given variables and using the fact that CD = x, DA = y, CE = z, and EB = w, we get:
x/(y+w) = z/(x+z)
Cross-multiplying both equations, we get:
xy + xw = yz + xz
Simplifying, we get:
x(w+z) = yz
Dividing both sides by wz, we get:
x/y = z/w
Which is the same as the equation we obtained using the Side Splitter Theorem.
To know more about triangles visit:
https://brainly.com/question/30066983
#SPJ1
Show Sample Answer
Part B
In general, how do the measures of the angles in the image compare with the measures of the angles in the preimage?
What affect does the scale factor of the dilation have on the angles, if any?
After a dilation, the angle measures remain constant, meaning that they are not affected by the scale factor of the dilation.
What is a dilation?A dilation can be defined as a transformation that multiplies the distance between every point in an object and a fixed point, called the center of dilation, by a constant factor called the scale factor.
The side lengths are changed, but the original figure and the dilated figure are similar, meaning that the angle measures remain constant, no matter the scale factor.
More can be learned about dilation at brainly.com/question/3457976
#SPJ1
Laura had 10 shirts she then bought 3 shirts each week for 4 weeks
If Laura had 10 shirts to begin with and then bought 3 shirts each week for 4 weeks, she would have:
10 + (3 x 4) = 22 shirts
After 4 weeks, she would have a total of 22 shirts.
What is the area of this composite shape? Enter your answer in the box
The area of the given composite figure is 40 square inches.
What is a composite figure?
A composite figure and shape are the same thing. A composite figure is any object that may be disassembled into multiple fundamental shapes.
We are given a composite figure which can be broken into a triangle and a rectangle.
So,
⇒ Area of composite figure = Area of Rectangle + Area of triangle
⇒ Area of composite figure = (length * breadth) + ([tex]\frac{1}{2}[/tex] * base * height)
⇒ Area of composite figure = (5 * 7) + ([tex]\frac{1}{2}[/tex] * 5 * 2)
⇒ Area of composite figure = 35 + 5
⇒ Area of composite figure = 40 square inches
Hence, the area of the given composite figure is 40 square inches.
Learn more about composite figure from the given link
https://brainly.com/question/10254615
#SPJ1
Which line best describes the narrative structure of "Cautionary Tale of Girls and Birds of Prey"?
1) alliteration and assonance that create a peaceful, dreamlike rhythm
2)exaggeration and hyperbole used to describe a girl’s irrational fear of a bird of prey
3)images that make the reader question whether the girl only imagined the hawk
4)two-line stanzas that slowly build suspense about the girl’s fear of the hawk
The answer is Option 4) two-line stanzas that slowly build suspense about the girl’s fear of the hawk.
What is a metaphor?In literature, metaphors are frequently used to evoke strong feelings and express nuanced concepts. Because they establish a clear connection between two objects, they can be more effective than similes, but they can also be trickier to understand because they depend on the reader's comprehension of the suggested meaning. On the other hand, similes are frequently used in everyday language and might have a clearer meaning.
The poem is divided into two-line stanzas, with each stanza offering a specific concept or illustration that helps to heighten the tension around the girl's hawk phobia. Up until the final stanza, where the story's climax is disclosed, each of the stanzas builds on the one before it, intensifying the situation and the girl's anxiety. The short, pointed lines that emphasise the bird's unexpected arrival and motions, as well as the poem's structure, all contribute to its tense, unsettling atmosphere.
Learn more about metaphors here:
https://brainly.com/question/13020675
#SPJ1
Simon wants to fill 8 punch bowls for a birthday party. Each punch bowl holds 9 1/5 quarts of punch. How much punch will Simon need?
Write your answer as a fraction or as a whole or mixed number.
Punch that Simon needs in fraction is 73[tex]\frac{3}{5}[/tex] quarts.
What is fraction?
Part of a whole is a fraction. The quantity is written as a quotient in mathematics, where the numerator and denominator are divided. Each is an integer in a simple fraction. Whether it is in the numerator or denominator, a complex fraction contains a fraction. The numerator and denominator of a correct fraction are opposite each other.
Here number of bowls punch for party = 8
Each punch bowl holds 9 1/5 quarts of punch .
Then converting into improper fraction then [tex]9\frac{1}{5}=\frac{45+1}{5}=\frac{46}{5}[/tex]
Now total punch Simon needs to fill 8 bowls is,
=> [tex]8\times\frac{46}{5}=\frac{368}{5}[/tex] = 73[tex]\frac{3}{5}[/tex].
Hence Punch that Simon needs in fraction is 73[tex]\frac{3}{5}[/tex] quarts.
To learn more about fraction refer the below link
https://brainly.com/question/78672
#SPJ1
can someone do this i don’t understand
A good way to solve for lines and segments will be to know the equations and properties of the shapes that we are provided with.
How to solve for lines and segmentsTo get the answers for the lines and segment, you can begin by applying the following steps:
Identify the given information: Determine what information is provided about the line or segment. For example, you may be given the coordinates of two points on the line or segment, or the slope and y-intercept of a line.Find the equation: Use the information provided to find the equation of the line or segment. For a line, the general equation is y = mx + b, where m is the slope and b is the y-intercept. For a segment, you may need to use the distance formula or midpoint formula to find the endpoints, and then find the equation of the line that passes through those points.Check for intersections: If you need to find the intersection of two lines or segments, set their equations equal to each other and solve for the variables. If the lines or segments do not intersect, they are parallel or skew.Find lengths and angles: Once you have the equations and intersection points, you can use geometry and trigonometry to find lengths and angles of the lines and segments.Learn more about lines and segments here:
https://brainly.com/question/17374569
#SPJ1
My rabbit Nibbles lives in a moveable pen and helps to keep the grass short. The pen is rectangular and measures 3m by 2m, as shown in the diagram, where the arrow indicates North. On successive days, the pen is moved 1m East, 2m South, 1m West and 2m North.
What is the total area, in square metres, of the region of grass which Nibbles can nibble?
Answer:
We can break down the total area of grass that Nibbles can nibble into two parts: the original rectangular pen, and the additional grass that Nibbles can reach as the pen is moved.
The area of the original rectangular pen is:
A1 = length x width = 3m x 2m = 6 square meters
To calculate the area of the additional grass, we can visualize the movements of the pen. The pen moves 1 meter to the east, 2 meters to the south, 1 meter to the west, and 2 meters to the north. This creates an irregular pentagon shape, as shown in the diagram below:
```
+-------+
| |
| |
E |
+----+---+ |
| S|
| |
| |
| |
| |
| |
+-----------+
W
```
To calculate the area of this irregular pentagon, we can divide it into two triangles and one rectangle:
- The east and west sides of the pen form a rectangle with dimensions 1m x 2m, for an area of 2 square meters.
- The south side of the pen creates a right triangle with legs of 2m and 1m, for an area of (1/2) x base x height = 1 square meter.
- The north side of the pen creates a right triangle with legs of 2m and 1m, for an area of (1/2) x base x height = 1 square meter.
Therefore, the total area of grass that Nibbles can nibble is:
A = A1 + 2 + 1 + 1 = 10 square meters.
So the answer is 10 square meters.
Based on the graphs of the two functions, which statement is true?
Answer:f(4)=g(4)
Step-by-step explanation:We see that when x= 4, we see that f(4) intersects g(4)
For a charity event, Jean biked at a fixed speed from Pine Bluff to Newberry. The graph shows the distance she rode along the y-axis and the amount of time it took along the x-axis.
The proportionality constant (y to x) is _____
.
Please help I really need this quick!!! NO SPAM!!!!
The calcuated value of the proportionality constant (y to x) is 15
Calculating the proportionality constantTo find the proportionality constant between the distance and time, we can use the formula:
proportionality constant = y/x
where y is the distance and x is the time.
From the graph, we know that when x = 1, y = 15. Therefore, the proportionality constant can be calculated as follows:
proportionality constant = y/x = 15/1 = 15
So, the proportionality constant between the distance and time is 15.
Read more about proportional relationship at
https://brainly.com/question/14654228
#SPJ1
at 3:00 pm, andy began walking directly south from point a at a rate of 4 mi/h. at the same time, bill started walking directly west from point b to point a, at a rate of 5 mi/h. the distance between a and b is 9 miles. assume that both of them stop walking when bill reaches point a. at what time will be distance between andy and bill be minimized? round your answer to the nearest minute.
At 4:00 PM, the distance between Andy and Bill is minimal, about 6.04 miles apart.
Pythagorean theorem is used to find the distance between Andy and Bill at any point in time.
Suppose 3 t hours have passed.
12:00 am.
At that point, Andy moved a remove of 4 miles south from point A, and Charge moved a remove of 5 miles west of point B.
The separation between Andy and Charge is given by
[tex]D(t) = sqrt[(9 - 5t)^2 + (4t)^2][/tex]
To find the time when the distance between Andy and Bill is minimal, we need to find the value of t that minimizes D(t).
To do this, find the derivative of D(t) with respect to t, set it to zero, and solve for t.
dD/dt = (1/2)[2(9 - 5t)(-5) + 2(4t)*(4)]
= -45 + 16t
Setting dD/dt = 0 gives: -45 + 16t = 0
Solving for t gives: t = 45/16 ≈ 2.81 hours
Therefore, the time at which the distance between Andy and Bill is minimal is 3.
48 hours (rounded to the nearest minute).
Note that at this point Andy has traveled a remove of 42.81 = 11.24 miles south of point A, and Charge has traveled a remove of 52.81 = 14.05 miles west of point B.
The separations between them are:
[tex]D(2.81) = sqrt[(9 - 52.81)^2 + (42.81)^2] ≈ 6.04 miles[/tex]
therefore, At 4:00 PM, the distance between Andy and Bill is minimal, about 6.04 miles apart.
learn more about the Pythagorean theorem
brainly.com/question/14930619
#SPJ4
URGENT - Will also give brainliest
Answer:
The area of the shaded sector is
(π/4)(6^2) = (π/4)(36) = 9π
What is the height of the tree?
Answer:
Step-by-step explanation:
The height of a tree would be the height of its root node, or equivalently, the depth of its deepest node.
on average, what percentage of infants born to 45-year-old mothers have down syndrome? on average, what percentage of infants born to 45-year-old mothers have down syndrome? 1% 3% 8% 10% 30%
The number of infants born to 45-year-old mothers who have Down syndrome on average is approximately 1 in 30 or 3.33%. The Down disorder may be a hereditary clutter that happens when there's an additional duplicate of chromosome 21.
The chance of having a child with Down disorder increments with maternal age. Agreeing to the American College of Obstetricians and Gynecologists, at age 35, the hazard of having an infant with Down disorder is around 1 in 350, or 0.29%. By age 40, the hazard increments to around 1 in 100, or 1%. And by age 45, the chance is around 1 in 30 or 3.33%.
In any case, pre-birth testing can offer assistance distinguish the chance of Down disorder and other hereditary anomalies amid pregnancy. This will offer assistance to hopeful guardians to make educated choices approximately their pregnancy and their baby's wellbeing.
To learn about Down syndrome visit:
https://brainly.com/question/31090859
#SPJ4
Writing What is the volume of the sphere? Use 3.14 for . Use pencil and paper. Describe how the volume of the sphere changes if the radius is increased by 1. radius is 19 in
Comparing the two volumes, we can see that the volume of the sphere decreased when the radius was increased by 1 inch. This is because the volume of a sphere increases with the cube of its radius, so small changes in the radius can result in significant changes in the volume.
What is volume?
A volume is simply defined as the amount of space occupied by any three-dimensional solid. These solids can be a cube, a cuboid, a cone, a cylinder, or a sphere. Different shapes have different volumes.
To find the volume of a sphere, we use the formula:
V = (4/3)πr³
where "r" is the radius of the sphere and "π" is approximately 3.14.
If the radius of the sphere is 19 inches, we can substitute this value into the formula to find its volume:
V = (4/3)π(19)³
V = (4/3)π(6859)
V = 36,236.71 cubic inches (rounded to two decimal places)
Therefore, the volume of the sphere with a radius of 19 inches is approximately 36,236.71 cubic inches.
If the radius is increased by 1 inch to 20 inches, we can find the new volume of the sphere using the same formula:
V = (4/3)π(20)³
V = (4/3)π(8000)
V = 33,510.32 cubic inches (rounded to two decimal places)
Hence, Comparing the two volumes, we can see that the volume of the sphere decreased when the radius was increased by 1 inch. This is because the volume of a sphere increases with the cube of its radius, so small changes in the radius can result in significant changes in the volume.
To know more about volume visit:
https://brainly.com/question/463363
#SPJ1