Answer:
x = 7
Step-by-step explanation:
3x - 9 = 12
3x = 12 + 9
3x = 21
x = 21 ÷ 3
x = 7
The standard deviation of the set of values (2, 3, 6, 9, 10) is <span>square root of 12.5 (</span>
![\sqrt{12.5}](https://tex.z-dn.net/?f=%20%5Csqrt%7B12.5%7D%20)
) therefore
OPTION C
Answer: 165=11h
Step-by-step explanation:
I believe it would be 165=11h because you have to multiply the number of hours she worked times 11 to get the amount that would equal 165!
Arc length, (s)=(radius, r)(central angle, q)
s=rq
q=s/r
q=4/10
q=2/5, or 0.4 radians