The statement, m∠4 = m∠5, then then r||s is true based on the converse of corresponding angles theorem.
What is the Converse of Corresponding Angles Theorem?Based on the converse of corresponding angles theorem, if two corresponding angles, angles 4 and 5 are congruent or equal to each other, then the lines on which they lie on, lines r and s are congruent.
Therefore, based on the converse of corresponding angles theorem, m∠4 = m∠5, then then r||s.
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Algebra 2 - Composition Functions
#4-6: let f(x)= 5x^3-2x and g(x)= 3x^3. Perform the indicated operation.
[tex]f(x) = 5x {}^{3} - 2x \\ g(x) = 3x {}^{3} [/tex]
4)[tex] \frac{f(x)}{g(x)} = \frac{5x {}^{3} - 2x }{3x {}^{3} } = \frac{x(5x {}^{2} - 2)}{3x {}^{3} } = \frac{5x {}^{2} - 2}{3x^2} [/tex]
5)[tex]f(g(x)) = 5( 3x {}^{3} ) {}^{3 } - 2(3x {}^{3} ) \\ f(g(x)) = 135x {}^{9} - 6x {}^{3} [/tex]
6)[tex]g(f(x)) = 3(5x {}^{3} - 2x) {}^{3} \\ g(f(x)) = 3(125x {}^{9} - 150x {}^{7} + 60x {}^{5} - 8x {}^{3} ) \\ g(f(x) )= 375x {}^{9} - 450x {}^{7} + 180x {}^{5} - 24x {}^{3} [/tex]
factorise fully
-x-5
The fully factorized version of -x-5 is [tex]-1 \times (x+5)[/tex].
What is Factorization?
Usually, factorization or factoring means writing a number (or another mathematical object) as a product of minor or more uncomplicated objects of the same kind.
Given -x-5 is a linear expression.
For factorizing, first, make the coefficient of x positive. For this take -1 common.
⇒ -x-5 = [tex]-1\times(x+5)[/tex]
Now take the greatest common divisor (gcd) of absolute values of coefficients in x+5.
⇒ gcd(1,5) = 1.
Now take gcd 1 common in the expression.
⇒ [tex]-1\times1\times(x+5)[/tex]
⇒ [tex]-1\times(x+5)[/tex].
∴ The fully factorized version of -x-5 is [tex]-1\times(x+5)[/tex].
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Given that
5x:9=8:3
Calculate the value of x
Give your answer in its simplest form.
Answer:
24/5
Step-by-step explanation:
5x : 9
(8 : 3)×3
5x : 9
24 : 9
5x = 24
x = 24/5 = 4/4/5
Hello!
5x : 9 = 8 : 3
5x × 3 = 8 × 9
15x = 72
5x = 24
x = 24/5
x = 4.8
∴ The value of x is 4.8.
Bobby is a freshman in high school and he just received $500 for graduation from middle school from his grandparents. he wants to save his $500 for college in 4 years if he deposits his $500 into a simple interest savings account for the next 4 years that has a rate of 2.85%. how much will he have in his account after 4 years?
Bobby will have $557 in his account after 4 years.
What is simple interest?Simple interest is calculated based on a loan's principal or the initial deposit into a savings account.
Simple interest doesn't compound, therefore a creditor will only charge interest on the principal sum, and a borrower will never be required to pay further interest on the interest that has already accrued.
Simple interest = (principal amount×Rate of interest×time-period)/100
The principal amount deposited was $500.
The rate of interest given by the bank is 2.85%.
The duration of deposit is 4 years.
Simple interest = (500×2.85×4)/100
= 57
Simple interest given by the bank after 4 years is $57.
The total sum of money Bobby will have in his bank is $500 + $57 = $557.
Therefore, after 4 years Bobby will have $557 in his account.
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idenify the numbers that are located below -3.5 on a vertical number line
A number line is just that – a straight, horizontal line with numbers placed at even increments along the length. The numbers that are located below -3.5 on a vertical number line are (-∞,-3.5).
What is a number line?A number line is just that – a straight, horizontal line with numbers placed at even increments along the length. It’s not a ruler, so the space between each number doesn’t matter, but the numbers included on the line determine how it’s meant to be used.
The numbers that are located below -3.5 on a vertical number line are all the numbers that are less than -3.5. The numbers that are located below -3.5 on a vertical number line are (-∞,-3.5).
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If g stands for a whole number, find the first three possible values of g2 + 3.
3, 4, 7
1, 4, 7
3, 5, 7
0, 4, 7
The first three values of g² + 3 are 3, 4, 7. The correct option is the first option 3, 4, 7
Evaluating an expressionFrom the question, we are to determine the first three possible values of g² + 3
From the given information,
g stands for a whole number
∴ The first three values of g are 0, 1, 2
When g = 0
g² + 3 becomes
0² + 3
= 0 + 3
= 3
When g = 1
g² + 3 becomes
1² + 3
= 1 + 3
= 4
When g = 2
g² + 3 becomes
2² + 3
= 4 + 3
= 7
Hence, the first three values of g² + 3 are 3, 4, 7. The correct option is the first option 3, 4, 7.
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if sinx=1/2, find cos4x
Answer: -1/2
Step-by-step explanation:
Use double-angle identities:
cos(2θ)=cos^2θ−sin2^θ
cos(2θ)=1−2sin^2θ
cos(2θ)=2cos^2θ−1
sin(x)=1/2
cos(2x)=1−2sin^2x=1−2(1/4)=1/2
cos(4x)=2cos2^(2x)−1=2(1/4)−1=-1/2
Answer: cos4x=-1/2 if sinx=1/2.
Step-by-step explanation:
[tex]sinx=\frac{1}{2}\\ x=\frac{\pi }{6} .\\4x=4*\frac{\pi }{6}=\frac{2\pi }{3}.\\ cos4x=cos\frac{2\pi }{3}=-\frac{1}{2} .[/tex]
In your own words, describe the difference between correlation and causation. Give an example (not given in the content) of two variables that might be positively or negatively correlated.
The difference between causation and correlation is that, Causation is characterized by cause-and-effect while correlation establishes a probable relationship.
What is the difference between Causation and correlation?While Causation is characterized by a situation in which an action certainly causes an outcome and hence, is described as a cause-and-effect relationship, Correlation on the other hand only establishes a relationship between the two events and doesn't necessarily ascertain the occurrence of the other event .
An example of two variables which may be correlated is; the height and weight of an individual in which case it is generally perceived that taller people are heavier.
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CAN SOMEONE PLEASE HELP m4A=33°, a=6, b=11. Find m&B to the nearest degree.
Answer:
B = 87
Step-by-step explanation:
The Attached Pic includes Sine Law which can be used in any Triangle
So for our Question
we have A=33 , a=6 , b=11
by Applying Sine Law
[tex]\frac{sin(A)}{a} =\frac{sin(B)}{b}[/tex]
Then
[tex]sin(B)=\frac{b*sin(A)}{a} =\frac{11sin(33)}{6}=0.9985\\ B=sin^{-1}( 0.9985)=87[/tex]
A tourist buys a nepali flag at a discount of 15% but pays
10% VAT,if she pays rs170 for VAT.calculate the discount amount
so he paid Rs 170 for VAT
total amount paid = 170 x 10 = 1700
discount is 15%
so therefore
amount before discount = 1700/(1–0,15) = 2000
discount = 2000 x 15% = Rs 300
The 15% discount amount for the Nepali flag is 255 rupees.
What is a percentage?The percentage is calculated by dividing the required value by the total value and multiplying by 100.
Example:
Required percentage value = a
total value = b
Percentage = a/b x 100
Example:
50% = 50/100 = 1/2
25% = 25/100 = 1/4
20% = 20/100 = 1/5
10% = 10/100 = 1/10
We have,
VAT = 10%
Discount = 15%
10% = 170 rupees
Multiply 15/10 on both sides.
15/10 x 10% = 15/10 x 170
15% = 255 rupees.
Thus,
The discount amount is 255 rupees.
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A cone has a slant height of a 26 cm and a radius of 10 cm what is the height of the cone
The height of the cone is 24 cm.
How is the slant height calculated?The distance along the curved surface, measured from the edge at the top to a point on the circumference of the circle at the base, is known as the slant height of an object (such as a cone or pyramid). In other words, the slant height, represented either as s or l, is the shortest distance that may be traveled along the surface of the solid.
Slant height(l)=26cm
Radius(r)=10cm
It is known that, [tex]l^{2}=r^{2}+h^{2}[/tex]
Here, h is the height of the cone.
On substituting the values,
[tex]26^{2}= 10^{2}+h^{2}[/tex]
[tex]\\676=100+h^{2}\\[/tex]
[tex]h^{2}=676-100\\[/tex]
[tex]h^{2}=576\\[/tex]
[tex]h=\sqrt{576}\\[/tex]
h=24
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help me please and quik!!!
Answer:
16yd²
Step-by-step explanation:
We only want to focus on the rectangles with carrots. Draw a line down the middle of the shape, giving you 2 recntangles for carrots. Let's start with the big one on the right.
It has a length of 2 and a height of 7. So the area is 14 square yards
The second rectangle
It has a height of 1 yard and a length of 2 yards so an area of 2 square yards.
Finally, 14 + 2 = 16yd²
Tim drives a average speed og 80km per hhour for 3 hours 45 minutes work out how many kilometers tim drives
The distance Tim drives is 300 kilometers
Average speed= 80 km
Time= 3 hours 45 minutes (15/4 hours)
Distance= Average speed/time
= 80 × 15/4
= 1200/4
= 300 kilometers
Hence the distance Tim drives is 300 kilometres
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True or false: Exponential growth depends on the per capita growth rate (rmax) of a population gradually increasing over time.
FALSE
Exponential growth is a pattern of data that shows sharper increases over time. In finance, compounding creates exponential returns. Savings accounts with a compounding interest rate can show exponential growth.
One of the best examples of exponential growth is observed in bacteria. It takes bacteria roughly an hour to reproduce through prokaryotic fission. If we placed 100 bacteria in an environment and recorded the population size each hour, we would observe exponential growth
First, population size is influenced by the per capita population growth rate, which is the rate at which the population size changes per individual in the population. This growth rate is determined by the birth, death, emigration, and migration rates in the population.
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Exponential growth depends on the per capita growth rate (rmax) of a population gradually increasing over time.
The given statement is false.
Exponential growth is a continuous boom or lower in a populace in which the price of change is proportional to the range of people at any given time.
It is growth that maintains acceleration with time and is a J-shaped curve. The intrinsic price of an increase in a populace is calculated by including the dying rate and the birth price.
Divide both sides by N and you get the growth rate per number of individuals ("per capita"): Because r = rmax [1-(N/K)] in the logistic model, we can substitute r: Thus, r equals the per capita growth rate.
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Given ƒ(x) = x + 10 and g(x) = x2 + 5x - 1, find ƒ(3) + g(5).
the vertex of a parabola is located at (1, -7). the parabola intersects the x-axis between 6 and 7.
between which two negative integers will the parabola intersect the x-axis?
Answer:
-4 and -5
Step-by-step explanation:
is what i got from what i did
The parabola intersects x axis between -5 & -4 .
What is parabola ?A plane curve generated by a point moving so that its distance from a fixed point is equal to its distance from a fixed line . The intersection of a right circular cone with a plane parallel to an element of the cone. something bowl-shaped (such as an antenna or microphone reflector)∴ The vertex of a parabola is located at (1.-7)
∵the parabola is symmetric about the x = 1.
∴ The parabola intersects the axis between 6 & 7 .
6 - 1 = 5 7 - 1 = 6
1 - 5 = 4 1 - 6 = 5
Therefore, the parabola intersects x axis between -5 & -4 .
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If m=5 and n = 2, find the value of 3mn
Answer:
30
Step-by-step explanation:
3mn=3x5x2=30
Solve each triangle. Round answers to the nearest tenth.
Answer:
Step-by-step explanation:
a = 12 mi
b ≈ 14.0 mi
c = 7 mi
m∠A ≈ 59.0 °
m∠B ≈ 91°
m∠C ≈ 30.0 °
The lengths of the triangle are:
a = 12 mi
b ≈ 14.0 mi
c = 7 mi
And the angles of the triangle are :
m∠A ≈ 59.0°
m∠B ≈ 91°
m∠C ≈ 30.0°
What are the angles in a triangle?
Every triangle has interior angles that total 180.
Angles in a triangle are the total (sum) of the angles at each of its three vertices.
Given, in a triangle ∠B is = 91°
length of c = 7 mi
a = 12 mi
We need to find the missing angles and side length of b.
⇒ b² = a² ₊ c² ₋ 2accosB
⇒ b/sinB = a/sinA = c/sinC
b² = 12² ₊ 7² ₋ 2(12)(7)cos91°
b² = 144 ₊ 49 ₋ 2(84)cos91°
b² = 193 ₋ 168 cos 91°
b² = 195.856
b=√195.856
b = 14.0 mi
⇒14.0/sin91° = 12/sinA
⇒ sinA = 12sin91°/14.0
sin A = 0.857
A = arcsin(0.857)
A = 59.0°
∴ C = 180° ₋ (sum of two angles in a triangle)
C = 180 ₋ (91° ₊ 59°)
C = 180 ₋ 150°
C = 30°
Hence we get the angles in the triangle as m∠A = 59.0°, m∠B = 91° and m∠C = 30°
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Choose the term that best fills in the blank to complete the statement.
A dilation is a transformation that maps every point on a line segment to a point on a parallel line segment. The image has a length that is determined by the preimage and a scale factor, which is a fixed _[blank]_ of the original segment's length.
a. Distance
b. Length
c. Multiple
d. Width
Answer:
d
Step-by-step explanation:
becoz u already answered it lloll
Write 10x10x10x10x10x10 with an exponent explain how you decided what exponent to write
Answer:
10^6
Step-by-step explanation:
exponents show how many times a number multiplies by itself
in this case, 10 multiplies by itself 6 times, so the answer should be 10^6
What is the equation for the cones volume?
Answer: D
Step-by-step explanation:
[tex]V=\frac{1}{3}\pi r^{2} h[/tex] is the general formula for the volume of a cone with radius r and height h.
Substituting in s for both r and h, [tex]V=\frac{1}{3}\pi s^{3}[/tex].
prove that sin4a+2sin2acos2a+cos4a=1
[tex] \qquad \qquad \bf \huge\star \: \: \large{ \underline{Answer} } \huge \: \: \star[/tex]
[tex]\textsf{ \underline{\underline{Steps to solve the problem} }:}[/tex]
[tex] \qquad❖ \: \sf \: \sin {}^{4} ( \alpha) + 2 \sin {}^{2} ( \alpha) \cos {}^{2} ( \alpha) + { \cos {}^{4} ( \alpha) }^{} [/tex]
[tex] \qquad❖ \: \sf \:( \sin {}^{2} ( \alpha) ) {}^{2} + 2( \sin {}^{2} ( \alpha))( \cos {}^{2} ( \alpha)) + {( \cos {}^{2} ( \alpha)) }^{} [/tex]
( use identity a² + 2ab + b² = (a + b)² )
[tex] \qquad❖ \: \sf \:( {\sin {}^{2}( { \alpha}) + \cos {}^{2} ( \alpha)) }^{2} [/tex]
( sin² x + cos ² x = 1 )
[tex] \qquad❖ \: \sf \: {1}^{2} [/tex]
[tex] \qquad❖ \: \sf \: {1}^{} [/tex]
[tex] \qquad \large \sf {Conclusion} : [/tex]
Value of that expression is 1
help! I need help, pls show work!
Let us first define what any of these terms mean.
The mean is found by adding all the numbers in the set, and dividing the sum by how many numbers are found in the set.
> Given set {5, 12, 6, 3, 8, 16, 8, 6}, the sum of the numbers is 5 + 12 + 6 + 3 + 8 + 16 + 8 + 6 = 64. 64 ÷ 2 = 32. Thus, the mean is 32.
The median is found by finding the number in the middle of the set, and dividing it by 2. This is easy in odd numbers as there is only one number in the middle that is the same amount of numbers left and right proportionally. However, in even numbers, there are two middles to be proportional. If it as an even number, then add the 2 middles together, and divide by 2.
> Given set {5, 12, 6, 3, 8, 16, 8, 6}, this set has an even number of numbers in the set. Thus, the middles are 3 and 8. 3 + 8 = 11, and 11 ÷ 2 = 5.5. Thus, the median is 5.5.
The mode is the number that most frequently appears in the set. In this case, we have 2 frequent numbers. That is 6 and 8. They both appear 2 times separately. Thus, 6 and 8 are the modes of this set.
The range is the difference (i.e subtraction) between the largest number on the set and the smallest number on the set.
> Given set {5, 12, 6, 3, 8, 16, 8, 6}, the range is 16-3 or 13. Thus, the range is 13.
Now that we have the definitions, we can compute the other set very easily.
> Given set {2, 7, 4, 11, 12, 4, 6}, the mean is 18.
> Given set {2, 7, 4, 11, 12, 4, 6}, the median is 5.5.
> Given set {2, 7, 4, 11, 12, 4, 6}, the mode is 4.
> Given set {2, 7, 4, 11, 12, 4, 6}, the range is 10.
Hope it helped!
If DAB = CBA,
DAB = 35° and CBA = 8x + 3
X= ?
Answer:
35= 8x + 3
35 - 3 = 8x
32 = 8x
32/8= 8x/8
x = 4
A fast food restaurant executive wishes to know how many fast food meals adults eat each week. They want to construct a 90% confidence interval for the mean and are assuming that the population standard deviation for the number of fast food meals consumed each week is 1.4. The study found that for a sample of 1271 adults the mean number of fast food meals consumed per week is 3. Construct the desired confidence interval. Round your answers to one decimal place.
The confidence interval which shows 90% confidence level for the mean and assumed standard deviation is (2.94 meals, 3.0565 meals).
Given standard deviation=1.4. Sample size =1271, mean=3.
We have to find the confidence interval for 90% confidence level.
We have to find out α level that is the subtraction of 1 by the confidence interval divided by 2.
α=(1-0.90)/2
=0.05
Now we have to find z in the z table as such z has a p value of 1-α so it is z with p value of 1-0.05=0.95
Z=1.44 from z table.
Now find M as such that
M=z* st/[tex]\sqrt{n}[/tex]
where st is standard deviation ,n is sample size.
M=1.44*1.4/[tex]\sqrt{1271}[/tex]
=1.44*1.4/35.65
=2.016/35.65
=0.0565
Lower end= mean -M
=3-0.0565
=2.94
Upper end=Mean+ M
=3+0.0565
=3.0565
Hence the confidence interval showing 90% confidence level is (2.94,3.0565).
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The sides of this rectangle are marked off in centimeters. If the rectangle is enlarged proportionally so that the longer side is 35 cm, how long will the shorter side be?
Answer:
10
Step-by-step explanation:
proportion
35 ÷ 7 = 5
2 x 5 = 10
what is y= - 2 (x-5) ^ 2 + 3 vertex, axis of symmetry, direction of opening, max or min and y intercept
Answer:
vertex: (5, 3)axis of symmetry: x = 5direction of opening: downwardmax: y = 3y-intercept: -47Step-by-step explanation:
Most of the questions can be answered by comparing the given equation to vertex form.
Vertex formThe vertex form of the equation for a parabola is ...
y = a(x -h)² +k
where 'a' is a vertical scale factor, and (h, k) is the vertex. The sign of 'a' determines whether the parabola opens upward or downward.
Parameter valuesWhen we compare the given equation to the vertex form, we can easily see the values of 'a' and (h, k).
y = -2(x -5)² +3 . . . . . . . given equation
y = a(x -h)² +k . . . . . . . vertex form
The parameters are ...
a = -2, (h, k) = (5, 3)
We notice ...
the sign of 'a' is negativethe vertex is (5, 3)Axis of symmetryThe axis of symmetry is the vertical line through the vertex. It has the equation ...
x = h
x = 5 . . . . equation of the axis of symmetry
Direction of opening, maxThe sign of 'a' is negative. This means that large x-values will result in large negative y-values. The parabola opens downward.
When the curve opens downward, it means the vertex is the highest point on the curve. The maximum is the y-value of the vertex: k. There is no minimum.
The maximum is y = 3.
Y-interceptThe y-intercept is where the graph crosses the y-axis. It can be found by setting x=0, and computing the value of y:
y = -2(0 -5)² +3
y = -2(25) +3 = -50 +3
y = -47 . . . . the y-intercept.
The ordered pair for the point there is (0, -47).
__
We show the graph so you can see how these features relate to the shape of the graph and points on it.
SOMEONE PLS HELP, ITS GEOMETRY, ITS URGENT ASAP PLS
Answer:
for st1: It's Given
For St2: Definition
For St3: Dividing BE as BF and FE or You can write From Figure:
For St4: You can write From st3
for st5: From St 4
For St7 : They are congruent by SSS axiom
3 bells ring at an interval of 4,7 and 14 mins.all three bells rang at 6am, when will the three bells ring together next
Determine the point of intersection of the lines x+y=4 and 2x+3y=12 algebraically
Answer:
this is just a system of equations
x+y=4
2x+3y=12
x=-y+4
plug in
2(-y+4)+3y=12
-2y+8+3y=12
y+8=12
y=4
plug in
x+4=4
x=0
(0,4)
Hope This Helps!!!
Answer:
(0,4)
Step-by-step explanation:
find x by subtracting y from both sides