Answer:
90:180, 135:270, 180:360
Step-by-step explanation:
Answer: x = 11 degrees
Step by step explanation:
Triangle rule states that all angles of a trundle must equal to 180 degrees. So we have two known angles, therefore we can subtract them from the 180 degree total.
180-109-43
=28
Now to solve for x we have the equation
4x-16=28
We add 16 to both sides to isolate x
4x=44
Now we divide each side by 4 to get rid of the coefficient
x=11
Answer:
the answers are 13, ab/2, 20 and 15x²/2
Answer:
First one, second one, fourth one, and last one
Step-by-step explanation:
Answer:
the sample size n= 771
sample proportion is p = 1/2
Step-by-step explanation:
<u>Step1:</u>-
marginal error formula is 
but if 'n' is sample size then 
Given margin error is 36% = 0.036

on simplification , we get n= 777 polling agencies
<u>Step 2</u>:-

substitute values , we get

after simplification, we get

squaring on both sides, we get

multiply 'p' inside

cross multiplication '4' and simplify
........(1)
finding 'p' value
The equation (1) is of the form 



<u>conclusion</u>:-
The sample size is 771
the sample proportion is p = 