Answer:
4.
Step-by-step explanation:
A square has four sides of equal length.
And, the formula for area of a square is a^2.
And, 4^2 or 4⋅4 = 16.
Therefore, the side length of the box is 4.
Is there a picture of the problem you can add to this?
Answer: -1/7
Step-by-step explanation:
10x+2-2x=2-6x-2
=10x-2x=-6x-2
=8x=-6x-2
=8x+6x=-2
14x=-2
x=-2/14
x=-1/7
Answer:
0.969
Step-by-step explanation:
Given that:
Mean lifetime (m) = 520 hours
Variance = 900
Hence, standard deviation (s) = √900 = 30
Probability that bulb will last for at most 576 hours
X ≤ 576
Obtain the standardized score :
Using the relation :
Zscore = (x - m) / s
Zscore = (576 - 520) / 30
Zscore = 56 / 30
Zscore = 1.867
P(Z ≤ 1.867) : using the z probability calculator ;
P(Z ≤ 1.867) = 0.96905
Hence, P(Z ≤ 1.867) = 0.969
Answer:
42:36
=42/36
=(7*6)/(6*6)
=7/6
Step-by-step explanation:
