5x - 10y = -40
-10y = -40 - 5x
y = -40 - 5x / -10
The exact number is 121.966019, so if you round to the nearest whole number, the answer is 122.
When you have an exponent that is negative, it means to take reciprocal of the fraction then take it the power.
Some examples:
5^-2 = 1/5^2 = 1/25
10^-3 = 1/10^-3 = 1/1000
If this answer wasn't clear enough, just comment below or DM me a message!
Answer: It is -62
Step-by-step explanation: It is -62 because if you find the absolute value it is always negetive .
Answer:
npr= n! /(n-r) !
nCr= =(n r) = n! /r!(n-r)1
Step-by-step explanation:
