The option first “shift right 1 unit, reflect over the y-axis, and then vertically stretch by a factor of 3” is correct.
What is linear equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
We have a function f(x) = x
The above function represents a linear function.
As we can see in the graph of a function g(x)
f(x) = x
First shift right 1 unit
f(x) = x -1
Then reflect over y-axis
f(x) = -x - 1
Then stretch by a factor of 3
f(x) = -3x - 1
Thus, the option first “shift right 1 unit, reflect over the y-axis, and then vertically stretch by a factor of 3” is correct.
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a political candidate has asked you to conduct a poll to determine what percentage of people support her. if the candidate only wants a 2% margin of error at a 90% confidence level, what size of sample is needed?
Size of sample needed to determine the percentage of people with give margin of error is equal to 1691.
As given in the question,
Margin of error = 2%
= 0.02
Sample proportion 'p' = 0.5
⇒ (1 - p) = 1 - 0.5
= 0.5
Let 'n' represents the sample size
Z- value at confidence interval 90% = 1.645
Formula used
Margin of error = z-value √ [p( 1-p)/n]
Substitute the value we get,
0.02 = 1.645 √ (0.5)(0.5)/n
Squaring on both the side
0.0004 = 2.706025 ( 0.25/n)
⇒ n = ( 2.706025 × 0.25 )/ 0.0004
⇒ n = 1691.26
⇒ n ≈ 1691
Therefore, size of sample needed with given margin of error is equal to 1691.
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The radius of a circle is 11 millimeters. What is the circle's circumference?
Answer:
C≈69.12
Step-by-step explanation:
C=2πr=2·π·11≈69.11504
3. A pair of slacks is marked $49.95 at a store having a 20% off sale. Estimate the difference in
the original price and the sale price.
the estimated sale price of the pair of slacks is $39.96.
To arrive at this answer, we can use the following calculation:
Sale Price = Original Price - (Discount Percent x Original Price)
Sale Price = $49.95 - (0.20 x $49.95)
Sale Price = $49.95 - $9.99
Sale Price = $39.96
Therefore, the estimated difference between the original price and the sale price is $9.99.
if the pair of slacks is marked at $49.95 in a store having a 20% off sale, the estimated sale price is $39.96 and the estimated difference between the original price and the sale price is $9.99.
The estimated difference in the original price and the sale price of the slacks is $9.99.
1. To find the discount amount, we multiply the original price by the percentage of the discount.
2. The original price is $49.95, and the discount is 20%.
3. Convert 20% to a decimal by dividing it by 100 (20/100 = 0.20).
4. Multiply the original price by the discount (0.20 * $49.95 = $9.99).
So, the estimated difference in the original price and the sale price is $9.99, which is the discount amount.
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do 6-12 please its due in 15 minutes
Answer:
-6
Step-by-step explanation:
Answer:
6) 96
7) 35.84
8) 41.88
9) 160
10) 1140
11) 112.50
12) 112.50
Step-by-step explanation:
A ladder leaning against a wall makes an angle of 68° with the ground. If the foot of the ladder is 8. 5 feet from the wall, how high on the wall is the ladder? Round your answer to the nearest hundredth
The height on the wall that the ladder reaches is approximately 21.04feet.
Angle made by ladder against the wall = 68 degrees.
Distance between foot of the ladder and wall = 8.5 feet
Use trigonometry function ,
Let us consider the height on the wall that the ladder reaches as 'h'.
Use the tangent function,
tan α = height on wall ladder reaches / distance between wall and foot of the ladder
⇒ tan(68°) = h / 8.5
Solving for h, we get,
⇒h = 8.5 × tan(68°)
⇒h = 8.5 × 2.475
⇒ h = 21.04 feet (Rounding to the nearest hundredth)
Therefore, ladder reaches a height of approximately 21.04 feet on the wall.
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likert-type scale response choices must be balanced at the ends of the response continuum.
that it is important for likert-type scale response choices to be balanced at the ends of the response continuum. This means that there should be an equal number of positive and negative response options to avoid any bias or skew in the results.
An explanation for this is that if there are too many positive or negative response options, respondents may feel pressured to choose a certain option even if it doesn't accurately reflect their true opinion. This can result in inaccurate data and can skew the results of the survey or study.
balancing the response choices on a likert-type scale is crucial for obtaining accurate and unbiased data. By having an equal number of positive and negative options, respondents are more likely to provide honest and accurate responses.
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Greg's garden shop sells oak tree saplings for 24.90 dollars. Employees receive a discount of 30 percent off the regular price. How much would an employee pay for an oak tree sapling?
Answer:
$17.43
Step-by-step explanation:
30% of 24.9 is 7.47, subtract 7.47 from 24.9 and you get 17.43
Jane has saved $48 of her allowance money to buy books. If she buys 6 books at "d" dollars per book, she will have $48 -6d of her allowance left. How much does she have left if the books cost $2.50 each?
Answer:
She would have $33 left.
Step-by-step explanation:
First input the $2.50 into the "d" variable and multiply 6 by 2.50.
48−(6)(2.5)
Then, subtract 48 by 15.
48−15
Finally, you have your answer.
33
What is the length of
each leg of the triangle below?
Answer:
11 sqrt(2)
Step-by-step explanation:
Since this is a right triangle, we can use trig functions
sin theta = opp / hypotenuse
sin 45 = x /22
22 sin 45 = x
22 ( sqrt(2)/2) =x
11 sqrt(2)
The legs are equal since the base angles are equal
(x - 6)^2 - 5 = 0 Enter the solutions from least to greatest.
Answer:
x=6- sqrt(5)
x=6+ sqrt(5)
Step-by-step explanation:
(x - 6)^2 - 5 = 0
Add 5 to each side
(x - 6)^2 =5
Take the square root of each side
sqrt((x - 6)^2) =± sqrt(5)
x-6 = ± sqrt(5)
Add 6 to each side
x-6+6=6± sqrt(5)
x=6± sqrt(5)
from least to greatest
x=6- sqrt(5)
x=6+ sqrt(5)
Answer:
\(\Large \boxed{ x=6 -\sqrt{5} \ \ \mathrm{or} \ \ x=6 + \sqrt{5}}\)
Step-by-step explanation:
\((x - 6)^2 - 5 = 0\)
Adding 5 to both sides of the equation.
\((x - 6)^2 =5\)
Taking the square root of both sides of the equation.
\(x-6 =\pm \sqrt{5}\)
Adding 6 to both sides of the equation.
\(x=6 \pm \sqrt{5}\)
Liam explains that drawing a yellow card is equivalent to drawing a blue card followed by a red card how many spaces forward or backward does a Player move after drawing a yellow card justify your answer
Complete question :
designs a board game in which a card is drawn on each turn. • A blue card means move forward 4 squares. • A red card means move back 6 squares. Liam suggests adding some other cards to Sia's game Part A Liam explains that drawing a yellow card is equivalent to drawing a blue card followed by a red card. How many spaces forward or backward does a player move after drawing a yellow card? Justify your answer.
Answer:
2 squares backward
Step-by-step explanation:
Given the rule :
Blue card = 4 squares forward
Red card = 6 squares backward
Yellow card = drawing a blue followed by a red
Spaces moved after drawing a yellow card:
Yellow equals :
Blue = + 4 squares ; then
Red = - 6 squares
Net total movement :
Blue + red
+4 + (-6)
4 - 6
- 2
2 squares backward
the answer will be 180
Answer: What is your question?
Step-by-step explanation:
Sketch the graph of the function and describe the intervals on which the function is continuous. If there are any discontinuities, determine whether they are removable.
1. x²-16/X-4
2. x²-3,x ≤0/2x+3,x>0
1. Graph of the function y = (x² - 16)/(x - 4)The given function is y = (x² - 16)/(x - 4). It can be rewritten as y = (x + 4)(x - 4)/(x - 4) which gives y = x + 4. Here, (x - 4) is a common factor which we can cancel out as long as x ≠ 4. The vertical asymptote of the function is at x = 4 because the denominator becomes 0 at x = 4.
There is no horizontal asymptote as the degree of the numerator and the denominator are equal. The graph of the function is as follows:Graph of the function y = (x² - 16)/(x - 4)In the graph, it is evident that the function is continuous everywhere except at x = 4 because the denominator becomes 0 at x = 4, which means the function is not defined at x = 4. Therefore, the function is discontinuous at x = 4. The discontinuity at x = 4 is not removable as the limit of the function does not exist at x = 4.2. Graph of the function y = (x² - 3) / (2x + 3)For x ≤ 0, the function is y = (x² - 3) / (2x + 3). We can rewrite it as y = (x² - 3) / [(2x + 3)/x].
The graph of the function y = (x² - 3) / (2x + 3) for x > 0 is as follows:Graph of the function y = (x² - 3) / (2x + 3) for x > 0Therefore, the function is continuous everywhere except at x = 0, where it has a vertical asymptote. Thus, there are no removable discontinuities in the given function.
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PLEASE HELP!!
The method 100 students use to get to school and their grade level is shown below.
Find the probability a student walks, given that they are a senior.
P(walk | senior) = [?]
The probability of being a senior is the total number of seniors divided by the total number of students.
The probability of a student walking given that they are seniors can be calculated using Bayes' theorem. Bayes' theorem is a formula that relates conditional probabilities to their inverses. The formula is: P(A|B) = P(B|A) P(A) / P(B)where P(A|B) is the probability of event A given that event B has occurred. In this case, A is "walking" and B is "senior." P(B|A) is the probability of being a senior given that the student is walking, P(A) is the probability of walking, and P(B) is the probability of being a senior. We can also represent the above formula in the form of a tree diagram, where P(walk | senior) is one branch of the tree.
The probability of being a senior is represented by the root of the tree, while the probability of walking is represented by a branch from the root. The probability of walking given that the student is a senior is calculated by dividing the probability of a senior walking by the probability of being a senior. The probability of walking can be calculated by adding up the probabilities of walking for each grade level and dividing by the total number of students.
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The pdf of x is f(x) = 0.1, 3 < x < 13. Find P(5 < X < 8).
The probability of X falling between 5 and 8 is 0.3, and this probability is proportional to the length of the interval.
To find P(5 < X < 8), we need to integrate the probability density function (PDF) of X over the interval [5, 8]. Since the PDF of X is given by f(x) = 0.1, 3 < x < 13, we know that the PDF is zero outside this interval.For more such question on probability
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The volume of a pyramid that fits exactly inside a cube is 9 cubic feet. What is the volume of the cube
Answer:
The answer is 27 because 3x9=27.
1. A relation contains the ordered pairs shown. One of the ordered pairs is missing an x-coordinate. {(-1,4),(0,4),(2,5),(3,-6),(?,7)} What could be the missing x-coordinate if the relation is not a function?
Answer:
There are 4 possible scenarios where given relation could not be a function:
i) \((-1, 4), (0,4), (2,5), (3,-6), (-1, 7)\)
ii) \((-1, 4), (0,4), (2,5), (3,-6), (0, 7)\)
iii) \((-1, 4), (0,4), (2,5), (3,-6), (2, 7)\)
iv) \((-1, 4), (0,4), (2,5), (3,-6), (3, 7)\)
Step-by-step explanation:
From Function Theory, we remember that a relation is not a function when at least one element from domain (x-coordinate) is related to one or more elements from range (y-coordinate). Hence, there are four possibilities of making the relation not a function:
i) \((-1, 4), (0,4), (2,5), (3,-6), (-1, 7)\)
ii) \((-1, 4), (0,4), (2,5), (3,-6), (0, 7)\)
iii) \((-1, 4), (0,4), (2,5), (3,-6), (2, 7)\)
iv) \((-1, 4), (0,4), (2,5), (3,-6), (3, 7)\)
Can someone help me on this
The algebra properties associated to each case are listed below:
Case 1: Distributive property
Case 3: Associative property (multiplication)
Case 5: Existence of inverse (addition)
What algebra properties are used in algebraic expressions?
In this question we find three algebraic expressions, in which we need to determine what algebra property is used. The most important properties in real algebra are listed below:
Reflexive property of equalities.Symmetric property of equalities.Transitive property of equalities.Compatibility property (addition, multiplication)Commutative property (addition, multiplication).Associative property (addition, multiplication).Existence of inverse (addition, multiplication).Modulative property (addition, multiplication).Distributive property.Now we proceed to determine the property associated to corresponding operation:
Case 1
9 · (x + y) = 9 · x + 9 · y → Distributive property
Case 3
[8 · (3 / 2)] · 15 = 8 · [(3 / 2) · 15] → Associative property (multiplication)
Case 5
(6 · x + 1) + (- 6 · x + 1) = 0 → Existence of inverse (addition)
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Triangle ABC has the following angle measures:
m∠A = (2x − 24)°, m∠B = (x + 8)°, m∠C = (4x + 49)°
What is m∠A?
pleaseee help
The measure of angle A in the triangle is 18°
How to determine the measure of angle A?The angles in the triangle are given as:
m∠A = (2x − 24)°, m∠B = (x + 8)°, m∠C = (4x + 49)°
The sum of angles in a triangle is 180
So, we have
m∠A + m∠B + m∠C = 180
Substitute the known values in the above equation
So, we have:
2x − 24 + x + 8 + 4x + 49 = 180
Evaluate the like terms
7x = 147
Divide both sides by 7
x = 21
Substitute x = 21 in m∠A = (2x − 24)°
m∠A = (2 * 21 − 24)°
Evaluate
m∠A = 18°
Hence, the measure of angle A in the triangle is 18°
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The graph represents the distribution of the lengths of play times, in minutes, for songs played by a radio station over one hour.
A graph shows the horizontal axis numbered 2.6 to x. The vertical axis is unnumbered. The graph shows an upward trend from 2.8 to 3.4 then a downward trend from 3.4 to 4.
Which statement is true about the songs played during the one-hour interval?
Most of the songs were between 3 minutes and 3.8 minutes long.
Most of the songs were 3.4 minutes long.
Most of the songs were less than 3.2 minutes long.
Most of the songs were more than 3.6 minutes long.
The correct statement is Most of the songs were between 3 minutes and 3.8 minutes long.
Based on the given information from the graph, we can determine the following:
The graph shows an upward trend from 2.8 to 3.4 on the horizontal axis.
Then, there is a downward trend from 3.4 to 4 on the horizontal axis.
From this, we can conclude that most of the songs played during the one-hour interval were between 3 minutes and 3.8 minutes long. This is because the upward trend indicates an increase in length from 2.8 to 3.4, and the subsequent downward trend suggests a decrease in length from 3.4 to 4.
Therefore, the correct statement is:
Most of the songs were between 3 minutes and 3.8 minutes long.
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Answer:
A
Step-by-step explanation:
how am i supposed to know help
The finish line is 253 m away. You begin to run from rest. You must reach a velocity of 53.2 m/s or you will explode. What must your acceleration be?
The acceleration require for the body to not explode will be 0.2941\( m/s^2 \)
The finish line as given is 253m away so that distance to be covered will be 253m.
Also we had started to run from rest so that initial velocity will be 0m/s.
We should take care that we could not explode and this is possible only if we reach to the velocity of 53.2m/s. So our final velocity will be 53.2m/s.
Now average velocity will be the sum of initial velocity and final velocity divided by 2.
∴ Average velocity = (initial velocity + final velocity) / 2.
∴ Average velocity = (0 + 53.2) / 2 = 53.2 / 2 = 26.6m/s
As we know that average velocity will give us an average time of the run by formula average speed = distance / average time.
∴ Average time = distance / average speed
∴ Average time = 253 / 26.6 = 9.51s.
Now as we know by the formula to calculate acceleration we need the average velocity, average time and we have both of them.
∴ Acceleration = \( \frac{average\ velocity}{(average\ time)^2}\)
∴ Acceleration = \( \frac{26.6}{(9.51)^2}\)
∴ Acceleration = \( \frac{26.6}{90.44}\)
∴ Acceleration = 0.2941\( m/s^2 \)
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Find all values of the scalar k for which the following vectors are orthogonal: u=[k,k,−2],v=[−5,k+2,5]
The vectors u and v are orthogonal when k equals 5 or -2.
Two vectors u and v are orthogonal if their dot product is equal to zero. The dot product of two vectors u and v is given by the formula:
u · v = u₁ × v₁ + u₂ × v₂ + u₃ × v₃
where u₁, u₂, u₃ are the components of vector u, and v₁, v₂, v₃ are the components of vector v.
Let's calculate the dot product of u and v:
u · v = (k × -5) + (k × (k + 2)) + (-2 × 5)
= -5k + k² + 2k - 10
= k² - 3k - 10
For the vectors to be orthogonal, the dot product must be zero:
k² - 3k - 10 = 0
To solve this quadratic equation, we can factor it or use the quadratic formula:
(k - 5)(k + 2) = 0
From this equation, we can see that the values of k that satisfy the equation are:
k = 5 or k = -2
Therefore, the vectors u and v are orthogonal when k equals 5 or -2.
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what is the area and the perimeter of this figure?
someone plzz helpp mee !
show full working outs
i only have 15mins to finish this assignment
Answer:
area=54
perimeter=30
Step-by-step explanation:
add all the sides=p
multiply 6 and 3 then 6 and 6 and add them together=a
Answer:
perimeter = a+b+c+d+e+f+g
= 6 +3+2+6+6+2+3= 28
area=first of all find the area one by one
area of the lying rectangle is.
a=l×b
but first let's add 3+3 =6
b=6
a=6×6
a=36
area of the standing rectangle
a=l×b
let's add 6+6=12 &2+2=4
a=l×b
a=12×4=48
then let's add both area together
36+48=84
therefore perimeter is 28 and area is 84
Step-by-step explanation:
why is double 6 is because the length are the same.
The sum of 49 consecutive integers is 75. What is their median ?
The median of a set of consecutive integers can be found by determining the middle value in the sequence. Given that the sum of 49 consecutive integers is 75, we can calculate their median.
To find the median of a set of consecutive integers, we need to determine the middle value. In this case, we are given that the sum of 49 consecutive integers is 75.
Let's assume the first integer in the sequence is "x." Since we have 49 consecutive integers, the last integer will be "x + 48." The sum of the sequence can be expressed as the sum of an arithmetic series: S = (n/2)(first term + last term), where "n" is the number of terms.
Substituting the given values, we have 75 = (49/2)(x + (x + 48)). Simplifying this equation further, we get 75 = 49(2x + 48).
Solving for "x" gives us x = -49. Therefore, the first integer in the sequence is -49, and the last integer is -1.
The median of a sequence of consecutive integers is the middle value. In this case, since we have an odd number of integers (49), the median will be the central value, which is (-49 + -1) / 2 = -25.
Thus, the median of the given sequence of 49 consecutive integers is -25.
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Bob swims 10 laps on even numbered dates. He swims 15 laps on odd number dates. How many laps has he completed by the sixth day of the month? PLEASE HELP
Answer:
75 laps
Step-by-step explanation:
"sixth day of the month" (meaning day number 6)
e = even (10 laps); o = odd (15 laps)
day 1 (o) day 2 (e) day 3 (o) day 4 (e) day 5 (o) day 6 (e)
15 laps 10 laps 15 laps 10 laps 15 laps 10 laps
Total: 15 + 10 + 15 + 10 + 15 + 10
Total: 75 laps
:3))
There are four more women than men at a golf club.
Let m represent the number of men at the club. Express the total number of men and women in terms of m.
m is for our men at the club
m + (4xm) is for our women
It cannot be m + 4 because we don't know the value of m.
E.g. If we knew there were 3 men at the club, then, in total, we'll have 3 men + 3 women + 4 extra giving us 10 members.
This also works for 1 men + 1 women + ( 4 more women) meaning 1 women x 4 = 4 women & ending up with 1 + 1 + 4, which is 6.
Note that if I have 5 oranges, and you have 2 extra than mine, you'll have 7 oranges. This means at some point we had the same amount of 5 oranges + the extra.
Plus, we know one in front of any variable gives us the variable like 1x is the same as x. In this case 1m is also the same as m.
So, we arrive at a total of - the m + m + (4xm) =>
2m + (4m) which is 6m
The total number of men and women in terms of m will be 6m.
Check:
If there were to be 5 men, we get a total of 30 men + women (6x5) altogether or 30 members.
the m + m + (4xm) => 5 + 5 + (4x5) = 30
Hope this helps!
mandy goes to a local orchard where she picks 50 pieces of fruit consisting of apples and pears. some of the apples and some of the pears have bruises on them. on her way home mandy randomly selects one piece of fruit to eat
The probability that it is a banana is zero.
What is probability?Probability is a branch of mathematics that deals with the study of random events or phenomena. It is a measure of the likelihood or chance of a particular event occurring, expressed as a number between 0 and 1, where 0 represents an impossible event and 1 represents a certain event.
The probability of an event is calculated by dividing the number of favorable outcomes by the total number of possible outcomes.
We know that;
1) Probability that it is a pear; 21/50 or 0.42 or 42%
2) Probability that it is bruised ; 7/21 or 0.33 or 33%
3) Probability that it is a bruised apple; 5/29 or 0.17 or 17%
4) The probability that it is an unbruised pear is; 14/21 or 2/3 or 0.67 or 67%
5) The probability that it is a banana is zero
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hello please help! create an x/y table!
equation: y=-1/3x-2
HELP PLEASE
What is the surface area of the pyramid
(A) 38 cm2
(B) 76 cm2
(C) 100 cm2
(D) 152 cm2
Answer:
(B) 76 cm2 or (C) 100 cm2 if it's incorrect SorryHave a Nice Best Day : ) i'm sorry there where no Answer