3 1/18 = 3 + 1/18
= 3/1 + 1/18
= (3/1 * 18/18) + 1/18
= 54/18 + 1/18
= 55/18
= 55 ÷ 18 =<em> 3.055556</em>
OR
3 1/18 = 3 + 1/18
= 3 + (1 ÷ 18)
= 3 + 0.055556 = 3.055556
The radius is 5cm
Step-by-step explanation:
The surface area of a sphere is given by:
Here
Given
SA = 100π cm^2
Putting the values in the formula
Taking square root on both sides
The radius is 5cm
Keywords: Surface area, Radius
Learn more about surface area of sphere at:
#LearnwithBrainly
Answer:
15.9
Step-by-step explanation:
x = 10/ cos 51° = 10/0.629 = 15.9
Since it is observed that I z I = 3.464 > 1.96 it is concluded that the null hypothesis is rejected.
Therefore we reject John's claim.
Here:
we can use 1 sample proportion test to check the claim of John
H₀ : p₀ = 0.4
H₁ : p₀ ≠ 0.4
Test statistic is
z = p - p₀/√p₀(1-p₀)n
Let X be the random variable denoting the number of heads.
Now p = X/n
= 8/50
= 0.16
p₀ = 0.4
1-p₀ = 1-0.4
= 0.6
z = -3.464
since it is observed that I z I = 3.464 > 1.96 it is concluded that the null hypothesis is rejected.
Therefore we reject John's claim.
Learn more about Null hypothesis here:
brainly.com/question/15980493
#SPJ4
