6/10 of an inch= 0.6
7 (times) 0.6 (equals) 4.2
Answer:
Sample mean = 30
Standard deviation = 10
Step-by-step explanation:
A system with two linear equations can be modeled with the information given in order to find the sample mean (M) and the standard deviation (s):

Solving the linear system:

The sample mean is 30 while the standard deviation is 10.
Answer:
c.90
Step-by-step explanation:
Because complementary mean 90 degrees,look it up.And it does not give any other angles.100 percent/TRUST
A) y = 5/3x - 9
B) y = -x + 3
C) y = -2/7x + 1
D) y = 5x + 4