Answer:
31.9 cm differs from mean by 3 standard deviations.
Step-by-step explanation:
Given:
Mean diameter of the ball = 28 cm
Standard deviation = 1.3 cm
Thus the number of standard deviations by which 31.9 cm ball size differs from the mean ball size is given by the standard normal deviate (Z) given by

Applying values we get

Thus 31.9 cm differs from mean by 3 standard deviations.
Answer:
4500
so, have a good day, and um, i think i got this right, if not sry.
Answer:
4(3x-10)
Step-by-step explanation:
12x-40 = (4*3)x-(4*10) = 4(3x-10). The GCF is 4.
For the answer to the question above asking what was the cost of each file folder if Thomas paid $50 for a box of the multicolor file folder for his office, there were 100 folders in the box?
this is a grade 2 problem. If you know how to divide you will get the answer.
Just d<span>ivide $50 by 100. Then you'll get the answer. </span>
It is 015 & with a line and a book o crove hdgsgub