15x + 7y + 45x + 22y
= 60x + 29y
answer
A. 60x + 29y
When you raise a number to a negative exponent, change the exponent to a positive and make the complete number a fraction with 1 as the numerator.
5 ^-2 = 1/5^2
The answer is C.
Answer:
Lowest score needed=4.92
Step-by-step explanation:
Using the standard normal distribution table we find the value of standard normal deviate corresponding to area of 15%
For area of 15% we have Z= -1.04
Thus we have

Applying values we get

Thus lowest score needed = 4.92
Answer: a 20% chance
Step-by-step explanation:
All you need to do is 2/10 = .2 = 20%
We do this because if 2 chose to read and there are 10 kids.
Answer:
but what is the value of term 'n'
Step-by-step explanation:
n=3
2n-1
2×3-1
6-1
5
Ans