To get the number of standard deviation that 77 is from the mean, we get the z-score:
z-score is given by
z=(x-μ)/σ
where:
μ-mean
σ-standard deviation
thus the value of z from the information above is:
x=77
μ=58
σ=7
z=(77-58)/7=2.7143
I assume she runs 2/3 of a mile is half an hour.
We can use a proportion to solve this problem.
Answer: In 3 hours, she would run 4 miles.
f(x) = 2× 4^x
first Consider y = 4^x
It is exponential function with slope 1 at x= 0
Obviously it is increasing function
Let's find value at x=0
f(x) = 2× 4^0
= 2
At x= 1
f(x) = 2× 4 = 8
So, 2nd graph represent the function
Answer:
Step-by-step explanation:
-18 = p / 2....multiply both sides by 2, cancelling out the 2 on the right side
-18 * 2 = p
- 36 = p <===
if it makes it easier to understand, p/2 is the same as (1/2)p