Three hundred and nine point four eight.
Answer:
4 ; 32
Step-by-step explanation:
Given that :
Number of observations, n = 9
Let observations = X
ΣX = 360
The mean, (m) is calculated using the formula :
m = ΣX / n
m = 360 / 9
m = 4
Σ(X - m) = 288 (sum of square of deviation )
Variance is calculated using the formula :
[Σ(X - m) / n]
Variance = Sqrt(288 / 9)
Variance = 32
Answer:
H = 11
Step-by-step explanation:
volume is 165
base is 15.
V = Bh
165 = 15 x ?
? = 11
check answer
15 x 11 = 165
Answer:
about 173⁰
Step-by-step explanation:
because it's very close to 180⁰ but isnt it, I'd say between 170 and 180
173 to be safe
Answer:
Given -2x + 7x + 8, the correct expression is 5x + 8.
Step-by-step explanation:
The student didn´t notice that 8 was not follow by x, and try to apply common factor. But we can´t do that. The correct form to solve this expression is -2x + 7x + 8 = (-2 + 7)x + 8 = 5x +8.
