Answer:
27
Step-by-step explanation:
Multiply 8×.75 (6)
Add that to 21
Answer:
Your anwser would be D
Jacki did not subtract 12 from 8 correctly.
Step-by-step explanation:
It should be a negative instead of a positive
Answer:
1 solution
Step-by-step explanation:
If you were to graph this line it would be a straight line so there is 1 solution.
y=3x
x=y/3
Answer:
The probability is 0.017429
Step-by-step explanation:
We start by calculating the z-score
Mathematically;
z-score = (x-mean)/SD/√n
In this case;
x = 273
mean = 276
SD = √(variance) = √81 = 9
n = 40
Substituting these values into the z-score formula, we have that;
z = (273-276)/9/√40
z = -2.11
So we proceed to get the probability
the probability in this case is;
P( z < -2.11)
We can use the normal distribution table for this
Our answer will be
P( z < -2.11) = 0.017429
Answer:
48.8%
Step-by-step explanation:
Just multiply this 0.488 by 100%, obtaining 48.8%.
