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Karolina [17]
3 years ago
7

Simplify (8/14 - 2/8) + 1/7​

Mathematics
1 answer:
konstantin123 [22]3 years ago
7 0

Answer:

13/28.

Step-by-step explanation:

(8/14 - 2/8) + 1/7

We can just remove the parentheses and simplify its contents:

=  4/7 - 1/4 + 1/7

= 4/7 + 1/7 - 1/4

= 5/7 - 1/4      The LCD of 7 and 4 is 28 so we have:

20/28 - 7/28

= 13/28.

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The radius of a semicircle is 4 miles. What is the semicircle's area?
adell [148]

Answer:

8\pi miles or 25.133 miles

Step-by-step explanation:

your radius is 4 miles.

The area of a circle is A= \pi r^{2}

Therefore, the area of this circle is 4^{2} \pi, or 16\pi

Half of this area, because what you're looking for is a semi-circle, is:

8\pi (exact) or 25.133 (rounded) miles.

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fgiga [73]
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5 0
2 years ago
Help pls I'm running out of points &amp; brain cells lol T^T
marshall27 [118]

Answer:

- 4.7

Step-by-step explanation:

Step 1:

c - 1.5 + 6.8 = 0.6

Step 2:

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Step 3:

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3 0
2 years ago
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What is the solution to 89+ K= -42<br> A. K=131<br> B. K=47<br> C. K=-47<br> D. K=-131
lisabon 2012 [21]
89-131=-42 the answer is k=-131
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