Answer:
11/25 = 44%
Step-by-step explanation:
NO LINKS!! Use the diagram below to answer the following questions.
Answer:
a) WS, ZV, YU
b) VU
c) ZW
d) WXY
e) None
f) TU, TV, UV, XY, XZ, YZ
g) SW, VX, VZ, WX, WZ, YZ
Step-by-step explanation:
A prism is a polyhedron that has:
Two bases that are congruent and parallel to each other.Lateral sides that are parallelograms and link the two bases.Height that is the distance between the two bases.From inspection of the give diagram, the figure appears to be a quadrilateral prism with bases STUV and WXYZ.
Parallel line segments
Parallel line segments lie on parallel lines. Parallel lines are lines on a plane that never meet and are the same distance apart.a) Segments parallel to XT:
WS, ZV, YUb) Segments parallel to ZY:
VUc) Segments parallel to VS:
ZWPlanes
A plane is a flat, two-dimensional surface that extends into infinity. A plane can be named by the letters naming three non-collinear points in the plane.Parallel planes are planes that never intersect.d) Planes parallel to plane STU:
WXYe) Planes parallel to plane UVZ:
NoneSkew lines
Skew lines are a pair of non-coplanar lines that:
Do not intersect.Are not parallel to each other.f) Segments skew to SW:
TU, TV, UV, XY, XZ, YZg) Segments skew to UT:
SW, VX, VZ, WX, WZ, YZThe curve y=ax2+bx+c passes through (2,5) (3,12) and (-1,-4).find the equation of the curve
Explanation:
You want to first to substitute to form 3 equations.
5=4a+2b+c
12=9a+3b+c
-4=a-b+c
Now solve with whatever way you fell comfortable, I'm going to use elimination.
First eliminate c
7=5a+b
16=8a+4b --> 4=2a+b
Then I'll eliminate b,
3=3a
a=1
Now solve for b and c
7=5+b
b=2
1-2+c=-4
c=-3
Now for the equation:
y=x^2+2b-3
Hope this helps!
Roger can run one mile in 21 minutes. Jeff can run one mile in 18 minutes. If Jeff gives Roger a 1 minute head start, how long will it take before Jeff catches up to Roger? How far will each have run?
Answer:
Step-by-step explanation:
Step 1
Data of Roger,
Roger runs 1 mile in 21 minutes.
So, Rate by which Roger is running = 1/21 mile/ minute.
Let, Roger runs for x minutes.
So, total distance ran by Roger = rate * time = x/21 mile.
Step 2
Data of Jeff,
Jeff runs 1 mile in 18 minutes.
So, Rate by which Jeff is running = 1/18 mile/ minute.
As Jeff gives Roger a 1 minute head start, so Jeff will run for (x-1) minutes.
So, total distance ran by Jeff = rate * time = (x-1)/18 mile.
Step 3
Equation:
distance = distance
x/21 = (x-1)/18
18x = 21x-21
3x = 21
x = 7 minutes (Roger time)
Roger will run rt = (1/21)7= 1/3 mile
x-1 = 6 minutes (Jeff time)
Jeff will run rt = (1/18)6 = 1/3 mile
y = x² - 4x convert from standard to vertex form
Answer:
\(y = (x-2)^{2} -4\)
Step-by-step explanation:
To complete the square: add 4 to both sides because the product of 4 as 2 as the factor which 2 * 2 so \(2^{2}\)
\(y + ? = x^{2} - 4x + ?\)
\(y + 2^{2} = x^{2} - 4x + 2^{2}\)
\(y + 4 = x^{2} - 4x + 4\)
Now we can factor the expression
\(y + 4 = (x-2)^{2}\)
Move the 4 to the other side to isolate y which changes the sign
\(y = (x-2)^{2} - 4\)
James got an 80 on a math test. By taking a retest in MLC, he increased his score by 15%. What
was his new score ?
Show work please
Answer:
Step-by-step explanation:
80x(1+0.15)=80x1.15
=92
What is an equivalent function to f(x)=(x-2)^3
Answer:
x^3-6x^2-4x-8
Step-by-step explanation:
First you would multiply (x-2) by itself (x-2) to get
x^2-2x-2x+4
then you would combine like terms
x^2-4x+4
Then you would multiply that by x-2
(x^2-4x+4)(x-2)
x^3-2x^2-4x^2-8x+4x-8
then you combine like terms
x^3-6x^2-4x-8
Plz help what is
1 2/5 - (-3/5)
Step-by-step explanation:
1 2/5 - (-3/5)
1 2/5 + 3/5
7/5 + 3/5
10/5
For what values of theta do maximum r-values occur on the graph the polar equation r = 2 cos4 theta? Note that the maximum r-value occurs at a point that is the maximum distance from the pole
Answer:r=2 cos^4(theta)
Step-by-step explanation:To find the values of theta where the maximum r-values occur on the graph of the polar equation r = 2 cos^4(theta), we need to find where the derivative of r with respect to theta is equal to zero, since the maximum r-values occur at these points.
First, we can simplify the equation by using the identity cos(2theta) = 2cos^2(theta) - 1 and substituting cos^2(theta) = (1 + cos(2theta))/2. This gives:
r = 2 cos^4(theta) = 2(1/2 + 1/2 cos(2theta))^2 = 1 + cos(2theta) + cos^2(2theta)/2.
Next, we can take the derivative of r with respect to theta, using the chain rule:
dr/dtheta = -sin(2theta) - 2cos(2theta)sin(2theta).
Setting this equal to zero and factoring out sin(2theta), we get:
sin(2theta)(-1 - 2cos(2theta)) = 0.
This equation is satisfied when sin(2theta) = 0 or cos(2theta) = -1/2.
When sin(2theta) = 0, we have 2theta = k*pi for some integer k. Therefore, theta = k*pi/2.
When cos(2theta) = -1/2, we have 2theta = 2*pi/3 + 2*k*pi or 2theta = 4*pi/3 + 2*k*pi for some integer k. Therefore, theta = pi/3 + k*pi or theta = 2*pi/3 + k*pi.
These are the values of theta where the maximum r-values occur on the graph of the polar equation r = 2 cos^4(theta).
4. Calculate Karl Pearson's Coefficient of Correlation X 43 44 46 40 44 42 45 42 38 40 42 57. Y 29 31 19 18 19 27 27 29 41 30 26 10
Answer:
Enter the following transactions into richard’s checkbook register and state his ending balance: date type description amount 03/01 check #204 blue sky apartments $455. 00 03/05 dep payroll automatic deposit $390. 36 03/08 debit benny’s hamburgers and fries $9. 20 03/15 check #205 car payment $251. 59 03/19 dep payroll automatic deposit $390. 36 a. $715. 79 b. $1,009. 81 c. $780. 72 d. $880. 24.
What are the domain and range of the function ?
A number from 8 to 15 is drawn at random. What is the probability that the number is an even number? O 211 CD A/7 o 5/8 HKD 118 O 1/2
Answer:
4/7
Step-by-step explanation:
numbers between 8 to 15 is 7
so d even numbers are 4
that is d answer is 4/7
The probability that the number is an even number is 1/2.
What is the probability?The probability is defined as the ratio of number of favourable outcomes and the the total number of possible outcome.
A number from 8 to 15 is drawn at random.
The number between 8 to 15 are 8, 9, 10, 11, 12, 13, 14, 15 = 8
Total even number = 8, 10, 12, 14 = 4
The probability that the number is an even number is;
\(\rm Probability =\dfrac{Total \ even \ number }{Total \ numbers}\\\\ Probability =\dfrac{4}{8}\\\\ Probability =\dfrac{1}{2}\)
Hence, the probability that the number is an even number is 1/2.
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a) What is the area of the top face of this
cuboid?
b) What is the area of the bottom face of
this cuboid?
4 cm
9 cm
7 cm
The area of both the top face and the bottom face of the cuboid is 63 square centimeters (cm²).
To find the area of each face of the cuboid, we'll use the formulas for finding the area of a rectangle (which is the shape of each face of the cuboid).
Given dimensions:
Length (L) = 9 cm
Width (W) = 7 cm
Height (H) = 4 cm
a) Area of the top face of the cuboid:
The top face is a rectangle with dimensions 9 cm (length) and 7 cm (width).
Area = Length × Width
Area = 9 cm × 7 cm
Area = 63 square centimeters (cm²)
b) Area of the bottom face of the cuboid:
The bottom face is also a rectangle with dimensions 9 cm (length) and 7 cm (width).
Area = Length × Width
Area = 9 cm × 7 cm
Area = 63 square centimeters (cm²)
Therefore, the area of both the top face and the bottom face of the cuboid is 63 square centimeters (cm²).
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Which of the following is the value of the polynomial 4x^3 + 2x^2 + 3x +7 when x=10
Answer:
Step-by-step explanation:
When \(x=10\),
\(4x^3 + 2x^2 + 3x +7=4(10^3)+2(10^2)+3(10)+7 =4000+200+30+7=4,237\)
How to make 10.74 in two different ways?
Answer:
Step-by-step explanation:
1074/100
1.074*10
0.1074*10
107.4/10
10740/1000
Solve the exponential equation: 32 – x = 1
Answer:
31
Step-by-step explanation:
32 - x = 1, so we do this. 32 - 1 = x. So we get 31.
Answer:
31
Step-by-step explanation:
32 - x = 1
To find x you need to subtract 1 from 32
The answer is 31.
If you subtract 31 from 32 the answer becomes 1.
HOPE IT HELPED
Which equation represents a line parallel to the line shown on the graph?
Step-by-step explanation:
b
Profit is the difference between revenue and cost. The revenue, in dollars, of a company that makes skateboards can be modeled by the polynomial 2x3 + 30x – 130. The cost, in dollars, of producing the skateboards can be modeled by 2x3 – 3x – 520. The variable x represents the number of skateboards sold.
what expression would represent profit.
The expression would represent profit is expressed as the polynomial, 33x + 390.
How to Find the Expression of a Model?To represent the profit, we need to subtract the cost from the revenue. The revenue is given by the polynomial 2x³ + 30x - 130, and the cost is given by the polynomial 2x³ - 3x - 520.
Therefore, the expression representing profit can be obtained by subtracting the cost from the revenue:
Profit = (2x³ + 30x - 130) - (2x³ - 3x - 520)
Simplifying the expression, we have:
Profit = 2x³ + 30x - 130 - 2x³ + 3x + 520
Combining like terms, we get:
Profit = (2x³ - 2x³) + (30x + 3x) + (520 - 130)
Simplifying further:
Profit = 33x + 390
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how to turn NSQ to SQ statistical problem
NSQ can be turned into SQ through hypothesis testing and statistical analysis to determine significant relationships and patterns in the data.
To turn a non-statistical question (NSQ) into a statistical question (SQ), we need to rephrase it in a way that allows for statistical analysis. A statistical question is one that can be answered by collecting and analyzing data. Here is an example of how to turn an NSQ into an SQ:
This is a non-statistical question because it cannot be answered by collecting and analyzing data. It is purely a matter of personal preference and cannot be measured quantitatively. However, we can turn it into a statistical question by rephrasing it as:
To answer this question, we would need to collect data from a sample of the population and analyze it statistically. For example, we could conduct a survey of 1000 people and ask them which beverage they prefer. We would then calculate the percentage of respondents who prefer tea over coffee and use statistical methods to estimate the margin of error and confidence interval.
By turning the non-statistical question into a statistical question, we have made it possible to collect and analyze data to answer it. This approach is useful in many fields, including market research, social sciences, and healthcare, where data-driven decisions are increasingly important.
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what is 87,000,000,000,000 in scientific notation
Answer:
8.7*10^12
Step-by-step explanation:
What’s the difference between -70 in -30 on the number line
Answer:
If the distance is meant instead of a difference the answer is 40
Step-by-step explanation:
You would subtract the absolute value of
|-70-(-30)|
|-70+30|
|-40|
The absolute value of -40 is 40
The graph represents the piecewise function: f (x) ={ , if -3
The domain and the range of the function are
Domain = (-∝, ∝)Range = (0, ∝)How to determine the domain and range of the functionFrom the question, we have the following parameters that can be used in our computation:
The graph
The graph is a piecewise function
When combined gives an absolute function
The rule of a function is that
The domain is the set of all real numbers
This means that the input value can take all real values
However, the range is greater than the constant term
In this case, it is 0
So, the range is y > 0
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Question
The graph represents the piecewise function:
f(x) =
What is the domain and range of the function
what are the transformations of the following 1) f(x)=3x2^x+4-1
2) f(x)=-1/2x5^x-2+6
3) g(x)=1/5log(x+5)+3
4) g(x)=-4log(x)-2
1. The functiοn \(f(x) = 3x2^x+4-1\)undergοes the fοllοwing transfοrmatiοns
A vertical translatiοn dοwnward by 1 unit (the \("-1\)" at the end)
An upward vertical stretch by a factοr οf 3 (the "3" cοefficient in frοnt)
An expοnential grοwth with base 2 (the expοnent "x" in the term \("2^x"\))
A hοrizοntal shift tο the left by 4 units (the "-4" in the expοnent οf \("2^x"\))
2. The functiοn \(f(x) = -1/2x5^x-2+6\) undergοes the fοllοwing transfοrmatiοns:
A vertical translatiοn upward by 6 units (the "+6" at the end)An upward vertical cοmpressiοn by a factοr οf 1/2 (the \("-1/2"\)cοefficient in frοnt)An expοnential grοwth with base 5 (the expοnent "x" in the term \("5^x\)")A hοrizοntal shift tο the left by 2 units (the\("-2"\) in the expοnent οf \("5^x\)")3. The functiοn \(g(x) = 1/5log(x+5)+3\) undergοes the fοllοwing transfοrmatiοns:
A vertical translatiοn upward by 3 units (the "+3" at the end)A hοrizοntal shift tο the left by 5 units (the "+5" inside the lοgarithm)A vertical stretch by a factοr οf 1/5 (the \("1/5"\) cοefficient in frοnt)4. The functiοn \(g(x) = -4log(x)-2\) undergοes the fοllοwing transfοrmatiοns:
A vertical translatiοn dοwnward by 2 units (the \("-2"\) at the end)A vertical cοmpressiοn by a factοr οf 4 (the\("-4"\) cοefficient in frοnt)A hοrizοntal shift tο the right (there is nο explicit shift, but the dοmain οf the functiοn is restricted tο\(x > 0\), which means the graph is shifted tο the right οf the y-axis)
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If the length
is 3x+2 and the width is X+4. What is the area of a
redangle?
Answer:
3x+2+x+4=4x+6
Step-by-step explanation:
add all the number with x and also add all the numbers without x and u will get ur answer
so the ans is 4x+6
In Exercise 3 determine whether the table represents a linear or nonlinear function. explain.
Answer:
linear function
Step-by-step explanation:
from the table , observe there is a common difference between consecutive terms of y , that is
2 - (- 1) = 5 - 2 = 8 - 5 = 3
since the first differences are constant then the table represents a linear function.
The table represents a linear function. This can be determined in 2 ways:
1. When you graph the points they form a perfect line.
2. Considering that all x values have a common difference of 1 between their previous and next value, the y values also have a common difference, and it is 3. Hence, the points represent a linear function.
What is the correct algebraic expression of the following statement? The product of two consecutive odd integers.
1. n + (n + 2)
2. x(x + 2)
3. y + (y + 3)
4. z(z + 1)
Answer: Let X = the smaller of the two consecutive odd integers. Therefore (X + 2) = the larger of the two consecutive odd integers.
Martha’s clubhouse is shaped like
a square pyramid with four congruent equilateral triangles for its sides. All of the edges are 6 feet
long. What is the total surface area of the clubhouse including the floor? Round your answer to the nearest hundredth.
A=
The total surface area of the clubhouse including the floor is approximately 95.98 square feet.
We have,
The surface area of a square pyramid can be found by adding the area of the base to the sum of the areas of the four triangular faces.
Since the base is a square, its area is 6^2 = 36 square feet.
Each triangular face is an equilateral triangle with a side length of 6 feet, so its area can be found using the formula.
A = (√(3)/4) x s²,
where s is the length of a side.
The area of each triangular face.
A = (√(3)/4) x 6² = 9 √(3) square feet.
The total surface area is then:
A = 4 x 9 √(3) + 36
A = 36 √(3) + 36 ≈ 95.98 square feet
(rounded to the nearest hundredth)
Therefore,
The total surface area of the clubhouse including the floor is approximately 95.98 square feet.
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Billy took 5 tests in his math class. He scored an 89,88,93,90 and 81. What is the variance of his grades in these test? If necessary, round to the nearest hundredth.
The variance of Billy's grades obtained from his test scores is 15.76
What is variance?The variance is a measure of variability or spread a dataset. The variance can be calculated from the sum of the square of the differences of the data points from the mean divided by the number or count of the data points.
The variance of Billy's test scores can be calculated by finding the mean or the average of the scores, then finding the sum of the squares of the differences of each score from the mean as follows;
The mean score = (89 + 88 + 93 + 90 + 81)/5 = 88.2
The square of the differences of the values from the mean can be calculated as follows;
(89 - 88.2)² = 0.64, (88 - 88.2)² = 0.04, (93 - 88.2)² = 23.04, (90 - 88.2)² = 3.24, and (81 - 88.2)² = 51.84
The sum of the square of the differences is therefore;
0.64 + 0.04 + 23.04 + 3.24 + 51.84 = 78.8
The variance is therefore; 78.8/5 = 15.76Learn more on the variance of a set of data here: https://brainly.com/question/30701163
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the equation of the line is
HELP PLEASEEE!!!! IM BEING TIMED!!!!!!!
Answer:
y=1x-7
Step-by-step explanation:
George went to the store to buy notebooks.
- He had $36 to spend.
- He purchased 4 notebooks.
- After buying the notebooks, George had less than $12 left.
-What is the solution set for x, the cost of each notebook?
Thus, the solution set for the cost of each notebook that can be bought by George is: (0 ≤ x ≤ 6).
Explain about the one variable linear equation:A linear equation is a one-variable equation of the a straight line. The variable only has one power, which is 1. Simple algebraic operations are used to solve linear equations in one variable, which can have the form ax+b=0.
Given that:
Total amount George has = $36.Number of books = 4Left amount = $12Let the cost of each notebook 'x'.So, the linear equation follows
Amount for 4 notebooks + Left amount = total amount
4*x + 12 ≤ 36
4x ≤ 36 - 12
4x ≤ 24
x ≤ 24/4
x ≤ 6
So, (0 ≤ x ≤ 6)
Thus, the solution set for the cost of each notebook that can be bought by George is: (0 ≤ x ≤ 6).
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