3 years ago

Solve. 1/25 = 5^(x + 4) a. x = –7/2 b. x = –6 c. x = 9/2 d. x = 2

Mathematics

1 answer:

NikAS [45]3 years ago

6 0

$\frac{1}{25} =5^{x+4}
\\
\\ \frac{1}{5^2}=5^{x+4}
\\
\\5^{-2}=5^{x+4}
\\
\\-2=x+4
\\x=-6$

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What is the approximate perimeter of a semicircle with a radius of 8 m? Use pi star times = 3.14. Express your final answer to t

irga5000 [103]

The perimeter of a semicircle consists of two parts. (the curve and bottom)
That curve is half the distance around the circle, since it's been split in half.
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Using 3.14 for π, 8π = 8×3.14 = 25.12.
As for the flat part, that is the diameter (distance across) our circle.
The radius is the distance from the center of a circle to its edge, and always has half the length of the diameter. (you can break the diameter down into two radii)
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3 years ago

Ahhhhhhhhhhhhhhhhhhhhhhh

Bess [88]

Answer:

Its 9

Step-by-step explanation:

I did this in 5th grade... All you gotta do is count and there's 4 in the bottom aka 2 rows of 4 and there's 1 block on the top its 9

4+4+1=9

4+4=8

Add a 1 etc.

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