This is what you do.
(3)^(-9+7)= (3)^(-2)
= (1/3)^2
=1/9
Answer:
0.5 ; 0.34458
Step-by-step explanation:
Given that:
Mean (m) = 28
Standard deviation, s = 5
To obtain the Zscore :
Z = (x - m) / s
1.) P(x > 28)
Z = (28 - 28) / 5
Z = 0
P(Z > 0) = 0.5 (Z probability calculator)
2.) P(x < 26)
Z = (26 - 28) / 5
Z = - 0.4
P(Z > -0.4) = 0.34458 (Z probability calculator)
Answer:
20
Step-by-step explanation:
if 7 nails are required for each piece of wood, you must determine how much wood you have in total by dividing the amount of nails by 7.
If you have used 40 nails out of sixty, you 20 left because
60-40=20
673 jhsjsgsgysiusgdvzvdhgdcxvvd
Answer:1250
Step-by-step explanation:4x250 equals 1000 then add 250
