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worty [1.4K]
2 years ago
15

MARKING BRAINLIEST!!!!

Mathematics
1 answer:
sergeinik [125]2 years ago
7 0

Answer:

12

Step-by-step explanation

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Square A is a scaled version of square B. The dimensions of square A are three times the dimensions of square B. The area of squ
denis23 [38]

Answer:

The side of square A is 30 cm.

Step-by-step explanation:

Given that,

The dimensions of square A are three times the dimensions of square B.

The area of square A is 900 sq cm.

Side of square A = 3( side of square B)

Let the side of square B is b. So,

Side of square A, a = 3b

We know that, the area of square is side². So,

(3b)^2=900\\\\9b^2=900\\\\b^2=100\\\\b=10\ cm

Side of square A, a = 3(10) = 30 cm

Hence, the side of square A is 30 cm.

8 0
3 years ago
3k - 2c + 8<br> use k = 7 and c = 4
Inga [223]

Answer:

21

Step-by-step explanation:

3 (7) - 2(4) + 8

21 - 8 + 8

13 + 8

21

6 0
2 years ago
Read 2 more answers
Angles that measure between 0 and 90 degrees are called_?
azamat

Answer:

Acute angles.

Step-by-step explanation:

Acute angles are from 0-90 degrees.

Hope this helps :)

7 0
3 years ago
Read 2 more answers
A magazine surveyed readers and found that 175 of the 200 teenagers included in the survey spend at least two hours per night on
PIT_PIT [208]

Answer:

It is not accurate because only information from teenagers was used to make the claim.

Step-by-step explanation:

This is the correct answer because they only used the data that pertained to their teen readers. The magazine does not only have teen readers, but has many ages. The statement regarding internet use generalizes it to all readers, not just teens, therefore making its claim inaccurate because the scope of inference is not appropriate for the claim that was made.

6 0
3 years ago
(1/2)^2 - 6 (2 - 2/3)<br><br> Note: 1/2 and 2/3 is a fraction
shusha [124]
\bf \left( \cfrac{1}{2} \right)^2-6\left(2-\cfrac{2}{3}  \right)\impliedby recall~~\mathbb{PEMDAS}&#10;\\\\\\&#10;\cfrac{1^2}{2^2}-6\left( \cfrac{6-2}{3} \right)\implies \cfrac{1}{4}-6\left(  \cfrac{4}{3}\right)\implies \cfrac{1}{4}-\cfrac{6\cdot 4}{3}\implies \cfrac{1}{4}-\cfrac{24}{3}&#10;\\\\\\&#10;\cfrac{1}{4}-8\impliedby LCD~~4\implies \cfrac{1-32}{4}\implies \cfrac{-31}{4}\implies -7\frac{3}{4}
5 0
3 years ago
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