Answer:
78 cm
Step-by-step explanation:
The missing side lengths are the same as the side lengths shown, so the perimeter is double the sum of the given measures.
2(8 +16 +9 +6) cm = 78 cm
__
Both of the tangents to a circle from an external point (quadrilateral vertex) are the same length.
Answer:
The sign inside the absolute value would change it from negative to positive.
Step-by-step explanation:
Answer:
We reject H₀. We accept Hₐ (the cream can improve the the skin of more than 50%
Step-by-step explanation:
We have a proportion one tail test (right)
P₀ = 50 % = 0,5
P = 44/53 = 0.831
sample size = n = 53
Confidence interval = 0,95 α = 0.05 then z(c) = 1.64
1.-Hypothesis
H₀ null hypothesis P₀ = 0.5
Hₐ alternative hypothesis P₀ > 0.5
2.-Compute z(s)
z(s) = ( P - P₀ ) / √P₀Q₀/n ⇒ z(s) = (0.831 - 0.5 )/√0.5*0.5/53
z(s) = 0.3301/0.06
z(s) = 5.5
3.-Compare z(c) and z(s)
z(s) > z(c) 5.5 > 1.64
therefore z(s) is in the rejection region we reject H₀ . And accept Hₐ
Answer:
1.5
Step-by-step explanation:
Answer:
XGU for both
Step-by-step explanation: