All categories

3 years ago

Find the scale factor of the dilation. Then tell whether it is enlargement or reduction.

Mathematics

1 answer:

mariarad [96]3 years ago

4 0

Answer:

a) 1/2; reduction

b) 5/4; enlargement

Step-by-step explanation:

In each case, the scale factor is CP'/CP. When it is more than 1, the dilation is an enlargement.

Even before you run the numbers, you can tell if it is an enlargement or not. If the dilated figure is larger, P is closer to C than is P'. If P' is closer to C, then it is a reduction.

a) CP'/CP = (4-2)/4 = 2/4 = 1/2 . . . . a reduction

b) CP'/CP = 25/20 = 5/4 . . . . an enlargement

You might be interested in

A runner finished a total of 1,500 kilometers in races before retiring . She finished thirty-two 15-kilometer races . The rest o

Sindrei [870]

Answer:

32*15 = 480

1500-480 = 1020

1020/10

102 races

Step-by-step explanation:

5 0

3 years ago

nia has number cards for 2,3,8,9,5. what are all differents ways nia can arrange the cards to show only even number with the 2 i

trasher [3.6K]

23958
29538
25398
25938
29358
23598
I think this is what you meant.

8 0

3 years ago

How is 17 + 26 different from 36 + 53? Explain ( this is regrouping lesson)

xxMikexx [17]

17+26 is different from 36+53 by if you add 17+26 the sum would be 43. And if you add 36+53 the sum would also be 89. So that means the way how they are different is that the 17+26 and 36+53 has different kinds of sums. They have different kinds of sums because you are different numbers.
Hope this helped and if you need more help then just message me instead :)

6 0

3 years ago

Engineers are planning a new bridge to cross a small river. Surveyors created the diagram to show where the bridge would cross t

Bogdan [553]

Answer:

56.25 feet

Step-by-step explanation:

As per diagram, the two triangles are similar, as all angles are congruent (one is vertical, one is right, one is the

Let the distance across the river be x.

<u>The ratio of corresponding sides is same. Find x using ratios:</u>

x/45 = 75/60
x = 45*75/60
x = 56.25 feet

6 0

3 years ago

Read 2 more answers

Help with Algebra 2: 1. <img src="https://tex.z-dn.net/?f=%5Cfrac%7B%5Csqrt%5B7%5D%7Bx%5E5%7D%20%7D%7B%5Csqrt%5B4%5D%7Bx%5E2%7D%

Mars2501 [29]

Answer:

See explanation

Step-by-step explanation:

1. Given the expression

$\dfrac{\sqrt[7]{x^5} }{\sqrt[4]{x^2} }$

Note that

$\sqrt[7]{x^5}=x^{\frac{5}{7}} \\ \\\sqrt[4]{x^2}=x^{\frac{2}{4}}=x^{\frac{1}{2}}$

When dividing $\sqrt[7]{x^5}$ by $\sqrt[4]{x^2},$ we have to subtract powers (we cannot subtract 4 from 7, because then we get another expression), so