The question also states that each brick weighs 4 lb and ask to find 1) the function and 2) the total load if the wheelbarrow carry 20 bricks.
1) Function: weight of the wheelbarrow + weight of the bricks
call x, the number of bricks
f(x) = 42 + 4x
2) total load with 20 bricks
f(20) = 42 + 4(20) = 42 + 80 = 122 lb
Answer:
Step-by-step explanation:
My friend is a virtue because he is very upright. The patience that he has is very virtuous, and during school, he shows high moral standards and you can see it by the grades he gets.
Hope this helped a little!
Answer:
4, 2, -4
Step-by-step explanation:
You need to multiple 2 by 2 to get your answer
Answer:
90.18 is the final price.
Step-by-step explanation:
Answer:
Mean = 0.45
Standard deviation = 0.04035
Step-by-step explanation:
This is actually a very simple problem.
The question gives us the report that 45% of the teenagers in the age bracket own smartphones.
P = mean = 45%
Therefore the mean is 0.45.
I will go ahead to help you calculate the standard deviation.
√p(1-p)/n
n = 152
P = 0.45
√0.45(1-0.45)/152
= √0.45(0.55)/152
= √0.2475/152
= √ 0.001628
= 0.04035