A triangle is dilated by a scale factor of n = 1/3 . Which statement is true regarding the dilation?


It is a reduction because n > 1.

It is a reduction because 0 < n < 1.

It is an enlargement because n > 1.

It is an enlargement because 0 > n > 1

Answers

Answer 1

Answer: The second statement is true. It is a reduction because 0 < n < 1.


Step-by-step explanation:

Given: A triangle is dilated by a scale factor of n = 1/3 .

as n is less than 1 but greater than 0.

A dilation is a rigid transformation that forms an image that is the same shape as of the original figure, but with a different size.  A dilation transform a figure by scalar factor 'n' about the center of dilation is a fixed point in the plane which never change.

A dilation that forms a larger image is known as enlargement.  A dilation that forms a smaller image is known as reduction.

• If n is greater than 1, then the image is an enlargement.

• If n is between 0 and 1, then the image is a reduction .

• If n is 1, the figure and then the image are exactly same.

Answer 2

Answer:

2nd statement

Step-by-step explanation:


Related Questions

The equation of the line of best fit of a scatter plot is y = −4x − 6. What is the slope of the equation?

−6
−4
4
6

Answers

The slope-intercept form of a line is:

y=mx+b, where m=slope and b=y-intecept

So if y=-4x-6 the slope is -4.
y = -4x -6  

the equation is written in slope intercept form ( y = mx +b ) where b is the y intercept
therefore the y intercept is -6 

let A and B be nxn matrices such that AB is singular prove that either A or Bis singular

Answers

[tex]\det(\mathbf{AB})=\det\mathbf A\times\det\mathbf B[/tex]

Because [tex]\mathbf{AB}[/tex] is singular, we have

[tex]\det(\mathbf{AB})=0[/tex]

from which it follows that either [tex]\det\mathbf A=0[/tex] or [tex]\det\mathbf B=0[/tex].

Hello, I'm working on a project and I've been stumped.

How would I find the central ark of a ferris wheel? I'm using the London Eye ferris wheel for my project, and so far I know it has a diameter of 120 meters and 32 cars. It has a circumference of 377m and an area of 11,310m.

How can that information help me? Please include all steps and a clear explanation, and give the answer in degrees. Thank you.

Answers

a circle has 360 degrees

 the ferris wheel has 32 cars so the circle is broken up into 32 sections

 the central angle would be the angle between 2 of the cars

 so divide 360 by 32

360/32 = 11.25 degrees



Susie is paying $502.33 every month for her $150,000 mortgage payment. If this is a 4.5% 30 year mortgage, how much interest will she pay over the 30 years of payments?

Answers

You could find the interest paid by simply realizing that:

502.33(12)30-150000=total interest paid

i=502.33(12)30-150000

i=$30838.80

Answer:

$30838.80

:3 simply it pls

If cba represents three numbers multiplied together, what property allows you to rearrange the factors to read abc?

Answers

Final answer:

The commutative property allows you to rearrange the factors of a multiplication problem.

Explanation:

The property that allows you to rearrange the factors of a multiplication problem is the commutative property. This property states that the order of the factors can be changed without changing the product. In this case, if cba represents three numbers multiplied together, you can rearrange the factors to read abc because multiplying in any order will give you the same product.

For example, if c = 2, b = 3, and a = 4, then cba = 2 * 3 * 4 = 24. Rearranging the factors to abc gives abc = 4 * 3 * 2 = 24, which is the same product.

For a standard normal distribution, the probability of obtaining a z value between -1.9 to 1.7 is

Answers

P(X≤−1.9)=0.0287165598160018P(X≤−1.9)=0.0287165598160018

P(X≥1.7)=0.044565462758543P(X≥1.7)=0.044565462758543

P(−1.95996398454005≤X≤1.95996398454005)=0.95

Answer:

92.67% probability of obtaining a z value between -1.9 to 1.7.

Step-by-step explanation:

Normal probability distribution

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

For a standard normal distribution, the probability of obtaining a z value between -1.9 to 1.7 is

This probability is the pvalue of z = 1.7 subtracted by the pvalue of z = -1.9.

z = 1.7 has a pvalue of 0.9554.

z = -1.9 has a pvalue of 0.0287.

So there is a 0.9554-0.0287 = 0.9267 = 92.67% probability of obtaining a z value between -1.9 to 1.7.

Jane is making a suit which requires 2 5/8 yards for the jacket and 1 3/4 yards for the skirt. What is the total amount of material she needs? A. 3 1/2 yards B. 3 2/3 yards C. 4 yards D. 4 3/8 yards Mark for review (Will be highlighted on the review page)

Answers

In order to calculate this, We need to make sure that both measurements have the same denominator, so we need to transform 3/4 into a fraction with denominator of 8

1  3/4  >>>     1   6/8     ( the 6 comes from 8/4  x 3)

The total material that jane need would be:

2  5/8 + 1  6/8

= 3    11/8    

= 4    3/8

The answer is option D,



EASY 5 POINTS REALLY NEED HELP RN!!!! Which expression finds the length of side x in this right triangle?

Answers

Use Pythagoras:


x² = (8.5)² + (5)²


x = √[(8.5)² + (5)²]

Answer:

Top right one

Step-by-step explanation:

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An employer interviews 10 people for 6 technical support positions in a company, and 5 of the 10 people are women. If all 10 are qualified, in how many ways can the employer fill the technical support positions if exactly 3 are women?

Answers

Let the people be {M1, M2, M3, M4, M5, W1, W2, W3, W4, W5}

where M1 is Man 1, W1 woman 1 and so on...


The formula [tex]C(n, r)= \frac{n!}{r!(n-r)!} [/tex], gives the total numbers of ways of creating groups of r out of n.

r! means 1*2*3*...(r-1)*r.


The technical support group is going to have exactly 3 women, which will be chosen from 5 women, and 3 men which will be chosen from 5 men.

Each of the selections can be done in C(5, 3) many ways, and since the any selection of the men and women can be combined, in total there are:

C(5,3) *C(5, 3) many ways of creating the technical support group.

[tex]C(5,3) = \frac{5!}{3!2!}= \frac{5*4*3*2*1}{3*2*1*2*1}=10 [/tex]

10*10=100 many ways of forming the group.


Answer: 100

Can you help me solve this 2/3 (5 x 4) ÷ 3 + 6/7 =

Answers

[tex]\frac{2}{3}(5 *4)/3+\frac{6}{7}\\\\\frac{2*5*4}{3}*\frac{1}{3}+\frac{6}{7}\\\\\frac{2*5*4}{3*3}+\frac{6}{7}\\\\\frac{40}{9}+\frac{6}{7}\\\\\frac{40}{9}*1+\frac{6}{7}*1\\\\\frac{40}{9}(\frac{7}{7})+\frac{6}{7}(\frac{9}{9})\\\\\frac{280}{63}+\frac{54}{63}\\\\\frac{334}{63}=5\ \frac{19}{63}[/tex]
(pemdas)
this is the order you do the math
parenthesis
exponents
multiplication or division which ever is first
Addition or subtraction which ever is first

2/3 (5 x 4) ÷ 3 + 6/7
2/3 (20)÷3+6/7
40/3÷3+6/7
40/9+6/7
find common denominator
280/63+54/63
334/63 or 5.301

Will someone please answer this question?

Answers

surface area = 5ab +5bh

a = 4

b=7

h=18

5*4*7 = 140

5*7*18 = 630

630+140 = 770 square meters

If 3/2 divided by 1/4 =n, then n is between

Answers

3/2 / 1/4 = 3/2 * 4/1 
3*4= 12
2*1= 1
n= 12/1 or 12

Hope this helps! 

There is a value of a such that subtracting a-4 from 4a+16 gives an answer of -25. What is that value of a?

Answers

Let's see what happens:

4a+16 - (a-4) = 3a + 20 = 25 => 3a = 5 => a = 5/3
If you subtract (a-4) from (4a+16), the new equation to work with would be 3a + 12. And if the difference of these two equations is 3a + 12, which would give an answer of -25, (pictured 3a + 12 = -25), by using algebra we could try a = -13/3 or a equals negative 13 over three. I hope this helps

How can you use place value and period names to read and write 324,904 in word form.

Answers

three hundred twenty-four thousand, nine hundred and four
yes you can. you would read that as:
three hundred twenty four thousand, nine hundred four.

no ands were in between the numbers because there are no decimals.
hope this helped, xx

Tank 1 initially contains 50 gals of water with 10 oz of salt in it, while tank 2 initially contains 20 gals of water with 15 oz of salt in it. water containing 2 oz/gal of salt flows into tank 1 at a rate of 5 gal/min and the well-stirred mixture flows from tank 1 into tank 2 at the same rate of 5 gal/min. the solution in tank 2 flows out to the ground at a rate of 5 gal/min. if x1(t) and x2(t) represent the number of ounces of salt in tank 1 and tank 2, respectively, set up but do not solve an initial value problem describing this system.

Answers

[tex]\dfrac{\mathrm dx_1}{\mathrm dt}=\dfrac{2\text{ oz}}{1\text{ gal}}\dfrac{5\text{ gal}}{1\text{ min}}-\dfrac{x_1(t)\text{ oz}}{50\text{ gal}}\dfrac{5\text{ gal}}{1\text{ min}}[/tex]
[tex]\dfrac{\mathrm dx_2}{\mathrm dt}=\dfrac{x_1(t)\text{ oz}}{50\text{ gal}}\dfrac{5\text{ gal}}{1\text{ min}}-\dfrac{x_2(t)\text{ oz}}{20\text{ gal}}\dfrac{5\text{ gal}}{1\text{ min}}[/tex]

[tex]\implies\begin{cases}\dfrac{\mathrm dx_1}{\mathrm dt}=10-\dfrac1{10}x_1\\\\\dfrac{\mathrm dx_2}{\mathrm dt}=\dfrac1{10}x_1-\dfrac14x_2\\\\x_1(0)=10\\\\x_2(0)=15\end{cases}[/tex]

Suppose there is a test for esophageal cancer that is 95% accurate both on those that do and those that do not have esophageal cancer. if 0.7 percent of the population has esophageal cancer, compute the probability that a person has this cancer, given that his or her test results indicates so.

Answers

It was already stated that the probability that the population may have esophageal cancer is 0.7 percent. However, the additional statement that the accuracy is 95% will affect the probability as follows:

Probability = (0.007)(0.95) = 0.00665 or 0.665%

So instead of 0.7%, the probability will decreased to 0.665% because of the accuracy.

Curt is installing a picket fence around his garden which is 45.45 ft by 14.63 ft. When he gets to the hardware store he finds that each picket fence slat is two feet wide. If Curt does not want any spaces between each slat, use estimation to determine how many slats of fencing he should buy.

Answers

The perimeter of the garden is given

P = 45.45 + 45.45 + 14.63 + 14.63 = 120.16 feet

One picket fence slat is 2 feet wide, so the number of fence Curt should buy is

120.16÷2 = 60.08 rounded to 61 fences 

Look at the radian measure for every 30 degrees and 45 degrees in the Unit Circle. Explain how finding the exact measure in quadrant one can help you determine the remaining exact radian measures.

Answers

Google radian measures on the unit circle for lots of images of completed unit circles with these radian measurements. But the core idea is that if you can find the 30° and 45° radian measures (π/6 and π/4 respectively) to move to the corresponding angle in quadrant 2, you'd just need to add π/2 (90°) to that value, to find the values in quadrant 3 add π (180°), quadrant 4 add 3π/4 or you could also just minus π/2 to move 90° in the opposite direction. Say I wanted to find the 45° angle in quadrant 3, measured from the 0° line on the unit circle, in radians. I could say I know 45° is π/4 in quadrant 1, so to move it to quadrant 3, I need to add π or 180° to it. π/4 + π = π/4 + 4π/4 = 5π/4 which is the angle we need in radians.

box contains 15 items,4 of which are defective and 11 are good. Two items are selected. What is probability that the first is good and the second defective?

Answers

The probability of the first item being good is 11/15.
Since we have taken 1 item out the remaining total is now 14, so the probability of getting a defective item is now 4/14.
Now you multiply the probabilities together to get (11/15)(2/7)=22/105

Final answer:

The probability that the first item selected is good and the second item is defective is 22/105.

Explanation:

To find the probability that the first item selected is good and the second item is defective, we need to consider the total number of items, the number of good items, and the number of defective items.

The total number of items is 15, with 11 being good and 4 being defective. When we select the first item, there are 15 options, out of which 11 are good. Therefore, the probability of selecting a good item first is 11/15.

After selecting the first item, there are now 14 items left in the box, with 10 being good and 4 being defective. When we select the second item, there are 14 options, out of which 4 are defective. Therefore, the probability of selecting a defective item second is 4/14, which simplifies to 2/7.

To find the probability that both events occur, we multiply the probabilities: (11/15) * (2/7) = 22/105.

If m and n are positive integers such that the greatest common factor of [tex] m^{2} n^{2}[/tex] and [tex] m n^{3}[/tex] is 45, then which of the following could n equal?
(A) 3
(B) 5
(C) 9
(D) 15
(E) 45

Answers

the greatest common factor of [tex] m^{2} n^{2} [/tex] and [tex]m n^{3} [/tex]

is
 
gcd(m*m*n*n, m*n*n*n) =m*n*n=[tex]m n^{2} [/tex]

what we did, was to see how many m's and how many n's, each expression have, and then pick the smallest of each letter (factor).

the reason is that the common factor, must have enough m's and n's to divide the m's and n's of both expressions

so
[tex]45=m n^{2} [/tex]
also 
[tex]45=5*9=5*3^{2}[/tex]

thus, n is equal to 3


Answer: A)3

To put up several tents for a camping trip, you need several pieces of rope each 6 2/3 feet long. If you have a rope that is 43 feet, how many pieces can you cut for the tents?

Answers

[tex]\bf 43\div 6\frac{2}{3}\implies \cfrac{46}{6\frac{2}{3}}\implies \cfrac{\frac{46}{1}}{\frac{6\cdot 3+2}{3}}\implies \cfrac{\frac{46}{1}}{\frac{20}{3}} \implies \cfrac{46}{1}\cdot \cfrac{3}{20}\implies \cfrac{69}{10} \\\\\\ \boxed{6\frac{9}{10}}\qquad \qquad \cfrac{6\cdot 10+9}{10}\implies \cfrac{69}{10}[/tex]

Compare the value of the
4 in 40 and 400

Answers

The 4 in 40 is in the tens place and the 4 in 400 is in the hundreds place so 40 will be less than 400.

Linear regression describes the extent to which _______ predicts ________.

Answers

Linear regression describes the extent to which the known variable predicts the to-be-predicted variable.
Final answer:

Linear regression describes the extent to which an independent variable predicts a dependent variable through a linear relationship.

Explanation:

Linear regression describes the extent to which an independent variable (x) predicts a dependent variable (y) through a linear relationship.

For example, if we have data that shows the number of hours studied (x) and the test score (y) of students, linear regression can help us determine how well the number of hours studied predicts the test score.

The regression line is used to model the linear relationship between the independent and dependent variables in the population.

Learn more about Linear regression here:

https://brainly.com/question/36829492

#SPJ12

Lena bought 10 pounds of potatoes for $5.50 write the cost as cents per pound

Answers

10 pounds of potatoes for $5.50
one pound = $5.50 / 10 = $0.55

answer

it cost 55 cents per pound
Just set the proportional problem up with the total cost over the total pound 

the formula I=square root w/r gives the electric current I amperes that flows through an appliance, where W is the power in watts and R is the resistance in ohms. which set of numbers best describes the value of I for the given values of W and R? ( 42.) W=100,R=25 ( 43.)W=100,R=50

Answers

Final answer:

The value of I for the given values of W and R can be calculated using the formula I = [tex]\sqrt{(W/R)[/tex]. For W = 100 and R = 25, the value of I is 2 amperes. For W = 100 and R = 50, the value of I is approximately 1.41 amperes.

Explanation:

The formula I = [tex]\sqrt{(W/R)[/tex]  gives the electric current in amperes that flows through an appliance, where W is the power in watts and R is the resistance in ohms.

To determine the value of I for the given values of W and R, we can simply substitute the values into the formula. For the first set of numbers, W = 100 and R = 25:

[tex]I = \sqrt{(100/25)} = \sqrt{(4)} = 2[/tex] amperes.

For the second set of numbers, W = 100 and R = 50:

[tex]I = \sqrt{(100/50)} = \sqrt{(2) }[/tex]≈ 1.41 amperes.

Therefore, the value of I for the first set of numbers (W = 100, R = 25) is 2 amperes, and the value of I for the second set of numbers (W = 100, R = 50) is approximately 1.41 amperes.

Estimate then find the product 7×7956

Answers

Final answer:

To estimate the product of 7 and 7956, round 7956 to 8000 and then multiply by 7 to get 56,000. The exact product, calculated using the multiplication algorithm, is 55,692.

Explanation:

To estimate the product of 7×7956, we can round 7956 to the nearest thousand which gives us 8000. Then, we multiply 7×8000 to get an estimated product of 56,000. To find the exact product, we multiply 7 by 7956 to get 55,692.

When calculating such a product, we use the multiplication algorithm where we multiply each digit of the second number by the first number and then add up the resulting values.

Here's how you would perform the multiplication step by step:

7×7 = 49, add the carried over 6 to get 55, write down 5 and carry over the 5.

After placing the digits in their correct positions, we get the final answer: 55,692. Therefore, the exact product of 7×7956 is 55,692.

Txt me quicky i need help

Answers

your chances of getting a even number is 

P(even) = 4/8

simplified is 1/2


hope this helps

For each function, use the slope formula to calculate the rate of change between the points. In your final answer, include all of your calculations.



f(x):

(a, f(a) and (b,f(b)

1.) f(x)=x - 3 (0,f(0)) and (6,f(6))
2.) f(x) = -x (-4,f(-4)) and(2,f(2))
3.) f(x)=x2 (-2,f(-2)) and (0,f(0))
4.) f(x)=x3 (-1,f(-1)) and (1,f(1))
5.) f(x)=2x (0,f(0)) and (4,f(4))

Answers

Function 1: 

f(x) = x - 3
f(0) = 0 - 3 = -3
f(6) = 6 - 3 = 3

Slope = [tex] \frac{-3-3}{6-0} = \frac{-6}{6} =-1[/tex]

Function 2:

f(x) = -x
f(-4) = 4
f(2) = -2

Slope = [tex] \frac{4--2}{-4-2}= \frac{6}{-6}=-1 [/tex]

Function 3:

f(x) = x²
f(-2) = (-2)² = 4
f(0) = (0)² = 0

Slope = [tex] \frac{4-0}{-2-0}= \frac{4}{-2}=-2 [/tex]

Function 4:

f(x) = x³
f(-1) = (-1)³ = -1
f(1) = (1)³ = 1

Slope = [tex] \frac{-1-1}{-1-1}= \frac{-2}{-2}=1 [/tex]

Function 5:

f(x) = 2ˣ
f(0) = 2⁰ = 1
f(4) = 2⁴ = 16

Slope = [tex] \frac{1-16}{0-4}= \frac{-15}{-4}=3.75 [/tex]

There are 12 more toy cars than toy trucks in a toy box. With a total of 38 toy cars and trucks.How many toy trucks are in the toy box?

Answers

based on my calculation its 31 toy trucks.
i just simply do like this

38÷2
=19-12
=7

38-7
=31#

Answer:

Hui

Step-by-step explanation:

A flagpole cast a shadow 16 feet long at the same time a pole 9 feet high casts a shadow 6feet long what is the height in feet of the flagpole

Answers

The pole would be 24 feet high.
X/16=9/6
X=24
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