You can always find a percent by setting up a fraction
and then doing the division.
To set up the fraction, the top number is some percent of the bottom number.
If 400 is some percent of 30, then the fraction is
400 / 30 .
Do the division: 400/30 = 13.333...
To turn a number into a percent, move
the decimal point two places that way ===> .
13.333... = 1,333.333 %
400 is (1,333 and 1/3) percent of 30 .
Answer: 2.71
Step-by-step explanation:
We know that the formula to calculate the standard error is given by :-
, where
is the standard deviation and 'n' is the sample size.
Given : Standard deviation : 
Sample size : 
Then , the standard error of the mean is given by :-

Hence, the standard error of the mean = 2.71
Answer:
B.f(x)=4x
Step-by-step explanation:
Multiply x value by 4
Answer:
y = (3/2)x - 4
Step-by-step explanation:
Use (y2-y1)/(x2-x1) to find slope, and then y-intercept is -4.
The angles are congruent (equal)
8x + 6 = 4x + 38
4x + 6 = 38
4x = 32
x = 8
∠B = 4(8) + 38 = 70°