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3 years ago

Could someone help me

Mathematics

1 answer:

Julli [10]3 years ago

5 0

Answer:

B, C, D

Step-by-step explanation:

4(4a + 5) = 16a + 20

Look at each answer individually.

A. 16a + 5 <u>This is not correct.</u>

B. 16a + 20 This is correct.

C. 12a + 20 + 4a = 16a + 20 This is correct.

D. 2(8a + 10) = 16a + 20 This is correct.

E. 16a + 5 + 4 = 16a + 9 <u>This is not correct.</u>

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3 years ago

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2 years ago

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The radius of a circular plate is 12 centimeters. What is the area, in square centimeters, of this plate? Write your Anwer using

lesya [120]

Answer:

The area of circular plate is <u>144π square centimeters</u>.

Step-by-step explanation :

<h3><u>Solution</u> :</h3>

Here, we have given that the radius of circular plate is 12 centimeters.

So, finding the area of circular plate by substituting the values in the formula :

$\longrightarrow{\pmb{\sf{Area_{(Circle)} = \pi{r}^{2}}}}$

$\longrightarrow{\sf{Area_{(Circle)} = \pi{(12)}^{2}}}$

$\longrightarrow{\sf{Area_{(Circle)} = \pi{(12 \times 12)}}}$

$\longrightarrow{\sf{Area_{(Circle)} = \pi{(144)}}}$

$\longrightarrow{\sf{Area_{(Circle)} = \pi \times 144}}$

$\longrightarrow{\sf{Area_{(Circle)} = 144\pi}}$

$\star{\underline{\boxed{\frak{\purple{Area_{(Circle)} = 144\pi\: {cm}^{2}}}}}}$

Hence, the area of circular plate is 144π square centimeters.

$\rule{300}{2.5}$

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2 years ago

Someone help me please my friends don’t even know this question thank you

8090 [49]

Step-by-step explanation:

from the question:R=x^2/y

where x=3.8*10^5

y=5.9*10^4

it then mean

R=(3.8*10^5)^2/5.9*10^4

=144400000000/59000

=2447457.63

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2 years ago