how do i simplify(161/2-41/2)^-2?

Answer 1

(120 / 2) ^(-2)
= 60^(- 2)
= 1 / 3600
Or
= 3.6 x 10^(-3) in standard form.

Answer 2

not sure if it is 161/2 and 41/2, and not 16 1/2 and 4 1/2.
if it is the first, you just subtract 41 from 161, making 120. Divide by 2, which is 60. if it is the second, you subtract to get 12 in the ().

whatever your anwer is, this is how you do negative exponents. for example, 4 to -2 power is 1 divided by 4 squared. this would equal 1/16. You use this same principle to solve whichever way this problem is configured.

Answer 3

whenever you see a negative power you have to reverse the fraction;
1st, without taking into account the power simplify the fraction:
161/2-41/2=(161-41)/2=120/2=60
now, what the answer of 60^2? ans. is 3600 (it's 6*10*6*10=6^2*10^2=36*100=3600)
you know,there is no difference between 3600 and 3600/1 and since your power had a negative sign you have to reverse the answer,so:
ANSWER: 1/3600
good luck!

Answer 4

It depends upon the correct reading of your problem. Did you display the problem correctly? Are the numbers and operators properly separated?

Note: The expression x^-y is equivalent to 1/x^y.

Below are two possible readings of your problem:

(1)

((161 divided by 2) minus (41 divided by 2)) raised to the -2
((161 / 2) - (41 / 2))^-2
((161 / 2) - (41 / 2))^(-2) = 0.000277777778

(2)

(16.5 minus 4.5) raised to the -2
((16 1/2) - (14 1/2))^-2
(16.5 - 4.5)^(-2) = 0.00694444444

Answer 5

(16 1/2 - 4 1/2) ^-2
(12) ^-2
1/12 ^2
1/ 144

Answer 6

(12)^-2
(12)-2*+(-1)+(-1)+(-1)
*=4
12+4=16
16-12=1+(3)
1+(-1)+(-1)+(-1)
-1=7
1=+1 Solution around 8

Answer 7

( 16/2 - 41/2) ^-2
= ( 8 - 20.5)^-2
= (-12.5)^-2
= 1/(12.5)^2
= 1 / 156.25
= 0.0064