There is a 0.001 percent chance that this song will be played on no more than two of the seven days.
A probability simple definition is what?
A probability is a numerical representation of the likelihood or chance that a specific event will take place. Both proportions ranging from 0 to 1 and percentages ranging from 0% to 100% can be used to describe probabilities.
Detailed explanation:
Since this is a combination issue, we must first determine the combination of 7 select 5, and then multiply that result by the chance of each possible outcome:
Pick 5 from a combination of 7:
C(7,5) = 7! / (5! * 2!) = 7*6/2 = 21
This figure indicates that there are 21 alternative ways that the five days we want to be allocated in the seven days could be used.
The likelihood of each event is now:
5 days of song playback: (0.15)5
The song wasn't played for two days: (0.85)2.
Therefore, the final likelihood is
P =(0.15)^5*C(7,5) * (0.85)^2 = 0.001
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A baker has three canisters of flour in her supply room. Canister A can hold 30 pounds, canister B can hold 45 pounds, and canister C can hold 60 pounds.
Canister A contains 71% of its capacity.
Canister B is full.
Canister C has 8.8 pounds more than half its capacity.
The baker estimates that she does not have the 70 pounds of flour needed for this weekend's planned baking.
Use estimation strategies to determine which statements are true.
The true statement are
The baker's estimate is not reasonableThe baker has enough flour for the weekend's planned bakingHow to determine the true statementCanister A can hold 30 pounds and contains 71% of its capacity
= 0.71 * 30 pounds
canister B can hold 45 pounds and is 10/18 full
= 45 * 10/18 pounds
canister C can hold 60 pounds and it's 8.8 pounds more than half capacity
= 8.8 + 60 * 1/2 pounds
The total amount available
= 0.71 * 30 + 45 * 10/18 + 8.8 + 60 * 1/2
= 85.1 pounds
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On the Set of axes below graph the line whose equation is 2y=-3x-2
The linear equation contains point (2,k).State the value of k.
The value of k in the point (2, k) which lies on the line is -4.
How to find the value of k?
Every point lying on the curve of the line satisfies the equation of curve. Therefore, substitute the point in the given equation of line to find the value of k.
According to the given question:
The given equation is: 2y = - 3x - 2.
This is written as: 3x + 2y + 2 = 0.
Given the point (2, k) lies on the line given.
That means it should satisfy the given equation.
So, to find the value of 'k', simply substitute the point on the line.
So, it becomes: 3(2) + 2(k) + 2 = 0
⇒ 6 + 2k + 2 = 0
⇒ 2k = - 8
Dividing by 2 throughout, we get: k = - 4
Hence, (2, -4) lies on the line.
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If the lines are perpendicular to each other and the slope of the one
line is 1/2 what is the slope of the other line?
Answer:2/1
Step-by-step explanation:
you just have to flip the slope if it is perpendicular.
If the volume of a cone is 847picm³ and the height is 7 cm, what is the radius?
r≈10.75cm
Answer:
r≈10.75cm
V=πr^2h/3
g in a school course, course x is related to course y if all the students who take course x are also in course y
This question is incomplete , I am answering this question in general as per my knowledge.
No, because you gave T a Boolean when T expected a student as its first argument and a course as its second parameter. This will be less formal if.
The expected,
T(‘‘user2012813",‘‘discrete math")=true
However, the function F(x) and A both yield either true or false (y). Thus, you are attempting to assess
T(F(‘‘user2012813"),A(‘‘discrete math"))=T(true, false)= NULL
Only the first formulation makes sense, but after relations are established, these kinds of structures can be used.
Null functions as both a value and a pointer in computer programming. A built-in constant called null has a value of zero. It is the same as how strings in C are terminated with the letter 0.
Null is another possible value for a pointer, and unless the CPU supports a unique bit pattern for a null pointer, it has the same value as zero.
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If pentagon OPQRS is dilated by a scale factor of from the origin to create O′P′Q′R′S′, what is the ordered pair of point S′?
(8.75, 5.25)
(1.25, 0.75)
(1.75, 3.5)
(3.5, 8.75)
The correct answer is option A which is the ordered pair of point P’ will be (8.75, 5.25).
What is scale factor?The scale factor is defined as the proportion of the new image's size to that of the previous image. decision-making.
If pentagon OPQRS is dilated by a scale factor of 7/4 from the origin, to create O’P’Q’R’S’, what is the ordered pair of point P’
Multiply the coordinates of point P by the scale factor 7/4 to get the coordinates of P'.
Given : P(-5,3)
P' (x,y) = P (-5 x 7/4 , 3 x 7/4)
= P(-8.75, 5.25)
Therefore the correct answer is option A which is the ordered pair of point P’ will be (-8.75, 5.25).
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Write the polynomial as the product of linear factors.
h(x) = x3 − 6x2 + 13x − 10
Answer:
h(x) = (x -2)(x -2+i)(x -2-i)
Step-by-step explanation:
You want the linear factorization of h(x) = x³ -6x² +13x -10.
FactorsA graphing calculator (attachment 2) shows the one positive real root is x = 2. This means (x-2) is a factor.
When we factor that out, we have a quadratic with no real roots. The vertex of its graph at (2, 1) tells us the roots of it are 2±√-1 = 2±i.
Each root p gives rise to a linear factor (x -p), so the factorization is ...
h(x) = (x -2)(x -2+i)(x -2-i)
__
Additional comment
The first attachment shows these factors multiply out to give the polynomial h(x).
<95141404393>
What is an equation of the line that passes through the point (−5,−2) and is parallel to the line x-y=5?
The required equation of the line is x - y + 3 = 0 which is parallel to line x-y=5.
What is the equation of the line?A straight line's general equation is y = MX + c, where m denotes the gradient and y = c denotes the point at which the line crosses the y-axis.
On the y-axis, this value c is referred to as the intercept.
The point-slope form, standard form, and slope-intercept form are the three main types of linear equations.
So, the equation of the line will be:
The needed line will have the same slope as the parallel line.
The slope of the parallel line:
x - y = 5
y = x - 5
The parallel line's slope is 1.
Equation of a line with a slope of 1 through the point (-5,-2).
(y - y1) = m(x x1)
(y + 2) = 1(x + 5)
x - y + 3 = 0
Therefore, the required equation of the line is x - y + 3 = 0 which is parallel to line x-y=5.
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Identify the equation of the function.
y= sqaure root x-1+3
The equation y= √(x-1) + 3 is a function of radical function.
What is a function?
A function in mathematics from a set X to a set Y allocates exactly one element of Y to each element of X. The sets X and Y are collectively referred to as the function's domain and codomain, respectively.
Type of function:
linear, power, quadratic, polynomial, rational, exponential, logarithmic, radical etc.
Given equation is
y= √(x-1) + 3
In the equation there is a term √(x-1).
A square root presents in the equation.
This means it is a radical function.
The given equation is of a radical function.
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USA Today reported that the state with the longest
mean life span is Hawaii, where the population mean life span is 77 years.
A random sample of 20 obituary notices in the Honolulu Advertizer gave the
following information about life span (in years) of Honolulu residents:
72 68 81 93 56 19 78 94 83 84
77 69 85 97 75 71 86 47 66 27
i. Use a calculator with mean and standard deviation keys to verify that
x 5 71.4 years and s < 20.65 years.
ii. Assuming that life span in Honolulu is approximately normally distributed, does this information indicate that the population mean life span for
Honolulu residents is less than 77 years? Use a 5% level of signifi cance.
There is not enough evidence to conclude that the population mean life span for Honolulu residents is less than 77 years.
What are the hypothesis tested?At the null hypothesis, it is tested if there is not enough evidence that the mean life span is less than 77 years, that is:
[tex]H_0: \mu \geq 77[/tex]
At the alternative hypothesis, it is tested if there is enough evidence that the mean life span is less than 77 years, that is:
[tex]H_1: \mu < 77[/tex]
We are testing if the mean is less than a value, hence we have a left-tailed test, with 20 - 1 = 19 df and a significance level of 0.05, thus the critical value is of:
t = -1.7291.
Thus the conclusion, considering the test statistic t, is given as follows:
t > -1.7291: not enough evidence to conclude that the mean life span is less than 77 years -> do not reject the null hypothesis.t < -1.7291: enough evidence to conclude that the mean life span is less than 77 years -> reject the null hypothesis.What is the test statistic?The equation to obtain the test statistic is presented as follows:
[tex]t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}[/tex]
The parameters are:
[tex]\overline{x}[/tex] is the sample mean.[tex]\mu[/tex] is the value tested at the null hypothesis.s is the standard deviation of the sample.n is the sample size.In the context of this problem, the values of these parameters are given as follows:
[tex]\overline{x} = 71.4, \mu = 77, s = 20.65, n = 20[/tex]
Hence the test statistic is of:
[tex]t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}[/tex]
[tex]t = \frac{71.4 - 77}{\frac{20.65}{\sqrt{20}}}[/tex]
t = -1.21 -> not enough evidence to reject the null hypothesis.
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pelease help
7 1/4 x 0.55
Answer:
Step-by-step explanation:
3.9875
How do I find the test statistic and the critical value???
We can find the test statistic and the critical value by the distributed the test statistic under the assumption that the null hypothesis hold.
What is Statics?It is the study of external and the internal force.
When the first data will be pretext and the 2nd the joe will be the first test, the d will be mu joule -1. The alternative hypothesis to em d is the smaller than the 0. The first time we need to find the rest that sticks by the tree is when we were given the question n equal to the 15 and the d p equal to -15.1. The formula with the werther to the end has a big square root of 15 points.
times square 15 equal to the 1.399 point, and the next time we need to find a p value for this, we will use by left hand test.To The 14 degree freedom will be smaller than the minus 1.399 point if the value of the d n -1 degree, freedom and equal to the 15 minus 1 is equal. Energy use the t distribution when it is = 14 degree- freedom is smaller = 1.399 point. I going to compare to 918 point.
We're gong to regent the noon because the alpha is smaller than the 11.
Thus,
We can defined The mean difference is less than 0 points.
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Question 4. Given that -4≤ x ≤6$ and 2≤ y ≤ 8, find:
(a) The smallest possible value of x-y. (1 mark)
(b) The largest possible value of {2x}/{y} (1 mark)
(c) The largest possible value of x²+y². (1 mark)
The smallest possible value of x - y will be -6 when x = -4 and y = 2. The largest possible value of {2x}/{y} will be 3/2 when x = 6 and y = 8. The largest possible value of x²+y² will be 100 when x = 6 and y = 8.
Given that -4 ≤ x ≤6 and 2≤ y ≤ 8,
The smallest possible value of x - y
⇒ (x - y)
As per the given, the smallest values of x and y are - 4 and 2
So, substitute the values of x = -4 and y = 2 in the expression (x - y)
⇒ - 4 - 2
⇒ - 6
The largest possible value of {2x}/{y}
⇒ {2x}/{y}
As per the given, the largest values of x and y are 6 and 8
So, substitute the values of x = 6 and y = 8 in the expression {2x}/{y}
⇒ 2(6)/8
⇒ 12/8
⇒ 3/2
The largest possible value of x²+y².
⇒ x²+y²
As per the given, the largest values of x and y are 6 and 8
So, substitute the values of x = 6 and y = 8 in the expression x²+y²
⇒ 6²+8²
⇒ 36 + 64
⇒ 100
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Solve for the formula for the indicated variable. A= 1/2 bh, for h
The value of the h is A(2) / b when the formula is A = 1/2bh the formula is area of the triangle.
Given that,
We have a formula A = 1/2bh
We have to find h value from the formula.
We know that,
The variable h should be on one side of the equation, and the rest should be on the other. Divide the two sides in half as a good place to start. In this way, we eliminate the undesirable fraction.
A / 1/2 = 1/2bh / 1/2
Now on the right hand side left the 1/2 cancels out.
A / 1/2 = bh
And when a fraction is divided, the result is the same as multiplying it backwards.
A(2/1) = bh
Now, divide both sides by b.
A(2) / b = bh/b
On the left hand side b cancels out and we are left with the final product.
h = A(2) / b
Therefore, The value of the h is A(2) / b when the formula is A = 1/2bh the formula is area of the triangle.
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Write the domain as an inequality
x<-2
Write the range as an inequality
The domain of the given graph is -∞>x>-2
The range of the given graph is [0,-4]
What is the range and domain of a graph?
The range is the set of possible output values, which are shown on the y-axis.
The domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x -axis.
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The domain as an inequality x<-2 is { -∞>x>-2}.
The range as an inequality is [0,4]
What is the range and domain of a graph?
Functions in mathematics can be compared to the operations of a vending (soda) machine. When you put in a certain amount of money, you can select different types of sodas. Similarly, for functions, we input different numbers and we get new numbers as the result. Domain and range are the main aspects of functions. You can use quarters and one-dollar bills to buy a soda.
The machine will not give you any flavor of the soda if pennies are input. Hence, the domain represents the inputs we can have here, that is, quarters and one-dollar bills. No matter what amount you pay, you won't get a cheeseburger from a soda machine. Thus, the range is the possible outputs we can have here, that is, the flavors of soda in the machine.
The range is the set of possible output values, which are shown on the y-axis. The domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x -axis.
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Compare the slopes of the lines for y=f(x) and y=g(x) to determine if they are parallel.
x
f(x)
g(x)
0
22
24
1
36
38
2
50
52
3
64
66
Question content area bottom
Part 1
Select the correct choice below and fill in the answer box(es) to complete your choice.
A line's steepness can be determined by looking at its slope. Slope is determined mathematically as increase over run.
How do you find slope of a line?According to the slope equation, the slope of a line may be calculated by dividing the rise of the line between any two places by the run of the same line between the same two sites.
The line with m as the slope, m and c as the y-intercept is the graph of the linear equation y = mx + c. The values of m and c are real integers in the slope-intercept form of the linear equation.
Slope of y =f(x)
Slope (m) = ΔY / ΔX = 14 / 1 = 14
y = 14x + 22
When x=0, y = 22
When y=0, x = -1.5714285714286
Slope of y = g(x)
Slope (m) =ΔY / ΔX = 14 / 1 = 14
y = 14x + 24
When x=0, y = 24
When y=0, x = -1.7142857142857
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Some please tell me how to do this please and thank you
Answer:84
Step-by-step explanation:21x4=84
Find ED if AC=9x+1 and BD=13x-11 and ABCD is a rectangle.
Is the following correct?
All of the justifications used to demonstrate the following angles, including the alternate interior theorem justification, are valid.
What is the alternate interior theorem?When a transversal intersects two parallel lines, alternate interior angles are created that are equal to the alternate pairs of those pairs.
The angles formed on the opposing sides of the transversal are known as alternate internal angles.
Angles of the same size that are found on opposing sides of the transversal line are known as alternate angles.
Angles that alternate are equal: By creating a Z form, we can easily identify interior alternate angles: Alternate angles come in two varieties: alternate internal angles and alternate exterior angles.
All the reasons are given to prove the following angles are correct including the reason for the alternate interior theorem.
Therefore, all of the justifications used to demonstrate the following angles, including the alternate interior theorem justification, are valid.
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can someone help me with this geometry?
The length of QR in the quadrilateral is 58.7 units.
How to find the sides of similar quadrilateral?A quadrilateral is a plane figure that has four sides or edges, and also has four corners or vertices.
Two quadrilaterals are similar if their corresponding angles are equal and also their corresponding sides must be proportional.
Therefore,
KLMN is similar quadrilateral to OPQR.
Hence,
[tex]\frac{KL}{OP} =\frac{KM}{OQ} =\frac{KN}{OR} =\frac{MN}{QR}[/tex]
[tex]\frac{11}{38} =\frac{17}{QR}[/tex]
cross multiply
11QR = 17 × 38
QR = 646 / 11
QR = 58.7272727273
QR = 58.7
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Write the standard form of the equation of the circle with radius 8 and center (10,−7).
The equations that represent the circle having a with radius 8 and center (10,−7) are; (x - 10)² + (y + 7)² = 8²
What is the standard form of the equation of a circle?The standard form of the equation of a circle is (x - h)² + (y - k)² = r², where (h, k) is the center of the circle, and r is its radius.
We have given that circle having radius of 8 units. Thus, r = 8.
Since we know that circle having the center (10,−7).
Thus, the equation of the circle, with a radius of 8 units is;
(x - h)² + (y - k)² = r²
(x - 10)² + (y + 7)² = 8²
Thus, the equations that represent the circle having a with radius 8 and center (10,−7) are; (x - 10)² + (y + 7)² = 8²
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The members of a small town’s local arts council are selling raffle tickets. The art council decides that the top three raffle ticket sellers will share a portion of the profits. The second-place seller will receive twice as much as the third-place seller. The first-place seller will receive $20 more than the second-place seller. The profit portion they will share is $200
If there were a 4th place prize and that 4th place winner received half of what 3rd place received. How much is the 4th place prize?
The prize of the 4th place is 18
How to determine the prize of the 4th place?
Given:
1. The second-place seller will receive twice as much as the third-place seller
2. The first-place seller will receive $20 more than the second-place seller
3. The profit portion they will share is $200
Let S, T, F and V represent the prize of the second, third, first and fourth place respectively
Statement 1 can be written as:
S = 2T --- (1)
Statement 2 can be written as:
F = S + 20 --- (2)
Statement 3 can be written as:
F + S + T = 200 --- (3)
Substitute (1) and (2) into (3):
F + S + T = 200
(S+20) + 2T + T= 200
(2T+20) +2T + T= 200 (Since S = 2T)
2T+20 +2T + T= 200
5T + 20 = 200
5T = 200-20
5T = 180
T = 180/5
T = 36
Thus, the third-place seller prize is 36
Since the 4th place winner received half of what the 3rd place received. Thus:
V = 1/2 × T
V = 1/2 × 36
V = 18
Therefore, the 4th place prize is 18
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To order the right amount of flooring, you need to know the floor area of the living room
hown below. What is that area, in square feet?
Answer: Length (in feet) x width (in feet) = area in sq. ft.
Step-by-step explanation:
A rectangular auditorium seats 2100 people. The number of seats in each row exceeds the number of rows by 8. Find the number of seats in each row.
The number of seats in each row would be = 271 seats.
What is an auditorium?An auditorium is defined as the establishment that can be used for various events such as presentation, seminars and celebrations.
The total number of people seated in the auditorium= 2100 seats.
The total number of seats = 2100
The number of seats per row = 8x
That is,
2100 = 8x
make X the subject of formula;
X = 2100/8
X =263 +8
X = 271 seats per row.
Therefore, the number of seats per row would be = 271 seats per row.
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3) Solve. Answer needs to remain as an improper
fraction.
3/4 - 3 1/2 + 6
Answer:
Exact form: 13/4
Decimal form: 3.25
Mixed form: 3 1/4
Step-by-step explanation:
Write equations for the horizontal and vertical lines passing through the point (4,-3)
The equations for the horizontal line and the vertical line are y = - 3 and x = 4, respectively.
How to determine the equation of a horizontal line and a vertical line
Herein we find the case of a point (x, y) = (a, b), from which we must derive the equations for the horizontal line and the vertical line, whose forms are described below:
Horizontal line
y = b
Vertical line
x = a
If we know that (x, y) = (4, - 3), then the equations for the horizontal and vertical lines are, respectivelly:
Horizontal line
y = - 3
Vertical line
x = 4
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There are 4.6 grams of
protein in 1 serving of a brand
of yogurt. You eat 3 servings
of the yogurt. How many
grams of protein did you
consume?
The serving size of a certain brand of yoghurt has 4.6 grams of protein. The yoghurt is consumed in three portions. They eat 13.8 grams of protein daily.
Explain about the mathematical operations?A field of mathematics known as arithmetic operations deals with the study of numbers and the operations on those numbers that are relevant to all other branches of mathematics. The basic operations included in it are addition, subtraction, multiplication, and division.
Calculations involving numbers are done using arithmetic operators. The numerical results that are produced by arithmetic operators are associated from left to right.
The following are the three properties you should consider: Commutative addition applies to full numbers. Associative math is the addition of whole integers. When adding whole numbers, the number 0 serves as an identity.
In several contexts, including multiplication (repeated addition), division, and other operations, the fundamental operations of addition and subtraction are applied (repeated subtraction). These operations are used to transform the word problems into mathematical expressions.
= 4.6 x 1 = 4.6
= 4.6 x 3 =13.8
Hence the total grams of protein consumed is 13.8
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Answer: 13.8 grams of protein
Step-by-step explanation:
If there are 4.6 grams of protein in 1 serving, then to find the number of grams in 3 servings we can use multiplication to solve this question.
4.6 grams of protein * 3 servings = 13.8 grams of protein
[tex]\sqrt{x} 48[/tex]
Jen Butler has been pricing Speed-Pass train fares for a group trip to New York. Three adults and four children must pay $96Two adults and three children must pay $68 Find the price of the adult's ticket and the price of a child's ticket.
After solving the equations we can conclude that each ticket for an adult costs $24 whereas each ticket for a child costs $6.
What are equations?The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions.
For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign.
So, 2 equations can be formed:
Let a be adults and c be children.
3a + 4c = 96 ...(1)
2a + 3c = 68 ...(2)
Now, take equation (1):
3a + 4c = 96
3a = 96 - 4c
a = 96 - 4c/3
Now, substitute a = 96 - 4c/3 in equation (2):
2a + 3c = 68
2(96 - 4c/3) + 3c = 68
96 - 4c/3 + 3c = 68/2
96 - 4c + 3c = 34*3
-c = 102 - 96
c = $6
Now, substitute c = 6 in equation (1):
3a + 4c = 96
3a + 4(6) = 96
3a + 24 = 96
3a = 96 - 24
3a = 72
a = 72/3
a = $24
Therefore, after solving the equations we can conclude that each ticket for an adult costs $24 whereas each ticket for a child costs $6.
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please help with this it is very important its a final