Can someone simplify 9^-2.5?
1 answer:
Answer: 1/243
Step-by-step explanation: To simplify the problem shown, our first step is to convert the decimal in the exponent, -2.5, to a fraction.
-2.5 is the same thing as -2 and 1/2 so we have 9^-2 and 1/2 and -2 and 1/2 is the same thing as -5/2 so we have 9^-5/2.
The rest of my work is attached in the image provided.
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2) 1.86 x 10^8
the answer is 6/16. or if u simplify u will get the equivalent fraction or simplified fraction 3/8
Answer:
12.5 in^2
Step-by-step explanation:

25=2(3.14)r
25=6.28r
Divide by 6.28 on both sides:
3.98089172=r
Now use
:
12.5 in^2
D shows equivalent expressions
X= 2.5 2.75 divided by 1.10 =2.5