For a sample with M=72 and s=4, what is the X value corresponding to z= -2.00 fórmulas:

z= X-M/s
X=M+zs

the answer is 64, i just can’t seem to get to that answer.

-2.00 = X - 72 / 4

-2 × 4 = X - 72

-8 = X - 72

X = -8 + 72

X = 64

this is answer of 144 cubic meters

the answer is:

the answer is:

to solve the problem, we need to remember the quotient of power property, it's defined by the following relation:

if we have a quotienf of powers that have the same base, we need to keep the same base and subtract the exponent of the denominator power to the exponent of the numerator power.

so, we are given the expression:

then, calculating we have:

hence, the answer is:

have a nice day!