Answer:
The standard deviations is
Step-by-step explanation:"
Given mean female height = 64 inches and standard devaiton = 3 inches and 69 inches tall is Sally.
We know the distance of a data point from:
Z = =
So the standard deviations is
For
y=ax²+bx+c
the x value of the axis of symmetry is -b/(2a)
so test them
A., -b/(2a)=-(-8)/(2*-2)=8/-4=-2, yep
B. -b/(2a)=-2/(2*1/2)=-2/1=-2, yep
C. -b/(2a)=-(-16)/(2*4)=16/8=2, nope, need -2
D. -b/(2a)=-12/(2*3)=-12/6=-2, yep
answer is C
Step-by-step explanation:
since PQRT is a rhombus,
URQ=TPU
y=180-90-24=66
x=180-32-90-24=34
Answer:
n + 3 ≤ -8
Step-by-step explanation:
- "three more than n" means n + 3
- " is no more than n" means less than or equal to, so this symbol: ≤
- "-8" just means -8
- n + 3 ≤ -8
Answer:
15.99 X 3 = 47.97
47.97/100 X 104.5 = 50.12865
$50.13