Ask question

Ask question

All categories

2 years ago

12

Kyra wants to make the area of her rectangular closet 9 times larger than the size it currently is. What scale factor should she

use to dilate the dimensions
of the closet?
A)Scale factor of 6
B)Scale factor of 12
C)Scale factor of 3
B)Scale factor of 9

1 answer:

romanna [79]2 years ago

5 0

Answer:

choice 3) scale factor of 3

Step-by-step explanation:

3 times length + 3 times width = 9 times area

You might be interested in

Using the piling method which of the following can be constructed from discs alone

Sergeeva-Olga [200]

It should be b let me know if im right

4 0

2 years ago

Read 2 more answers

Find the sum of a finite geometric series. The sides of an equilateral triangle measure 16 inches. The midpoints of the sides of

olga2289 [7]

48 + 24 + 12 + 6 = 90 inches or <span>3*(16+8+4+2) = 90 will be the right answer.</span>

7 0

3 years ago

Read 2 more answers

A submarine changes its position by −7 meters every second.

IgorLugansk [536]

The correct anwer is -21 and how i got that is by taking -7*300 to get -21 as my answer let me know if it helped any...

5 0

2 years ago

Read 2 more answers

In the circle below, DB = 22 cm, and m<DBC = 60°. Find BC. Ignore my handwriting.

Karo-lina-s [1.5K]

Answer:

$BC=11\ cm$

Step-by-step explanation:

step 1

Find the measure of the arc DC

we know that

The inscribed angle measures half of the arc comprising

$m\angle DBC=\frac{1}{2}[arc\ DC]$

substitute the values

$60\°=\frac{1}{2}[arc\ DC]$

$120\°=arc\ DC$

$arc\ DC=120\°$

step 2

Find the measure of arc BC

we know that

$arc\ DC+arc\ BC=180\°$ ----> because the diameter BD divide the circle into two equal parts

$120\°+arc\ BC=180\°$

$arc\ BC=180\°-120\°=60\°$

step 3

Find the measure of angle BDC

we know that

The inscribed angle measures half of the arc comprising

$m\angle BDC=\frac{1}{2}[arc\ BC]$

substitute the values

$m\angle BDC=\frac{1}{2}[60\°]$

$m\angle BDC=30\°$

therefore

The triangle DBC is a right triangle ---> 60°-30°-90°

step 4

Find the measure of BC

we know that

In the right triangle DBC

$sin(\angle BDC)=BC/BD$

$BC=(BD)sin(\angle BDC)$

substitute the values

$BC=(22)sin(30\°)=11\ cm$

6 0

3 years ago

Mrs. DeMarco wants to estimate the length of her porch so she knows how much paint to buy. What is the best benchmark for her to

Zigmanuir [339]

The answer c ,I hope I’m right

8 0

2 years ago