What it is side ways i can help sory
Answer:
Step-by-step explanation:
Given that sample size = n=45
mu = 64 and sigma =14
a) Sample mean will follow a normal distribution irrespective of the original distributions provided
i) samples are randomly drawn
ii) samples represent the population
iii) Sample size is sufficiently large
b) Here we have sample std dev= 

c) 
Assuming the sum of the opposite angle would be 180. We can easily calculate for x and ultimately solve for the angle of B. We do as follows
B + D = 180
3x-12 + x = 180
4x - 12 = 180
4x = 192
x = 48 degrees
Therefore angle B would have a measurement of 132 degrees. Hope this helps.
Answer:
one apple costs $1.71
Step-by-step explanation:
let 'y' = price of an orange
let '2/3y' = price of an apple
6(2/3y) + 3y = 18
4y + 3y = 18
7y = 18
y = 18/7 or 2.57
2/3(2.57) = 1.71