The answer is D. M=7
===================
explanation
7+3(7)=28
7+21=28
28=28
making the D.M=7 as true.
Answer:
1.5
Step-by-step explanation:
The mean is the Middle number.
1 standard deviation in both sides of 7.5 makes it between 6 and 9.
<u>What is the </u><u>"common difference"</u><u> in 6 to 7.5 and from 7.5 to 9?</u>

and

So, we would say the standard deviation is 1.5
Answer choice A is right.
Answer:
Ok, so I say that the answer is 100
Answer:
25%
Step-by-step explanation:
hopes this helps you
Answer:
x=4.34 seconds
Step-by-step explanation:
-16x^2+70x-2=0

x=4.34