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3 years ago

How do you calculate the area of half a circle with a diameter of 10.2?

Mathematics

1 answer:

Helen [10]3 years ago

3 0

Answer:

5.2716 × 10-8^-8

Step-by-step explanation:

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1/3(x-1/3)-1/2(2/3x-1/2)

kenny6666 [7]

For this case we must simplify the following expression:

$\frac {1} {3} (x- \frac {1} {3}) - \frac {1} {2} (\frac {2} {3} x- \frac {1} {2})$

So, if we apply distributive property to the terms within parentheses we have:

$\frac {1} {3} x- \frac {1} {9} - \frac {2} {6} x + \frac {1} {4} =\\\frac {1} {3} x- \frac {1} {9} - \frac {1} {3} x + \frac {1} {4} =$

We simplify taking into account that:

Equal signs are added and the same sign is placed.

Different signs are subtracted and the major sign is placed.

$- \frac {1} {9} + \frac {1} {4} =\\- \frac {4} {36} + \frac {9} {36} =\\\frac {-4 + 9} {36} =\\\frac {5} {36}$

Answer:

$\frac {5} {36}$

4 0

3 years ago

I'm confused on the error and how to do the correct work.

lukranit [14]

550-500 is not 500 it’s 50

8 0

3 years ago

teds age is now four less than twice the age of his brother. The sum of their age is 50. what will be their ages three years fro

AnnyKZ [126]

Answer:

Sorrry i don't know about it

4 0

3 years ago

0.000014565 in scientific notation

Eddi Din [679]

1.4565 * 10 ^ - 5

I would really really appreciate it if you marked me as brainiest ☆〜（ゝ。∂）

8 0

3 years ago

Solve the equation. Round to the nearest hundredth. Show work.

muminat

Answer:

Final answer is approx x=0.16.

Step-by-step explanation:

Given equation is $2.8\times 13^{4x} +4.8 = 19.3$

Now we need to solve equation $2.8\times 13^{4x} +4.8 = 19.3$ and round to the nearest hundredth.

$2.8\times 13^{4x} +4.8 = 19.3$

$2.8\times 13^{4x} = 19.3-4.8$

$2.8\times 13^{4x} = 14.5$

$13^{4x} = \frac{14.5}{2.8}$

$13^{4x} = 5.17857142857$

$\log(13^{4x}) = \log(5.17857142857)$

$4x \log(13) = \log(5.17857142857)$

$4x = \frac{\log(5.17857142857)}{\log\left(13\right)}$

$4x = 0.641154659628$

$x = \frac{0.641154659628}{4}$

$x = 0.160288664907$

Round to the nearest hundredth.

Hence final answer is approx x=0.16.

4 0

4 years ago