-3pi/2 is the same thing as pi/2
the terminal point on the unit circle for pi/2 is (0,1)
so that means the terminal point for -3pi/2 is also (0,1).
Answer:
Once!
Step-by-step explanation:
Cause 7 times 2 is 14 so it can't be 2.
I hope this helps and have a great day! :)
Answer:
For grid, Please see attachment area of rectangle.
Explanation:
We are given the area of rectangle is 1,125 square unit whose one side is 25 units.
As we know the formula of area of rectangle 
Let 25 units is width of rectangle
Area = 1,125
units
Dimension of rectangle 45 x 25.
Now we draw the grid graph of rectangle.
First we take a grid paper with 1 square unit area of each box. Now we draw line with 45 unit horizontal(Length) and 25 unit vertical (Width).
We make a closed figure with four line opposite side equal and parallel.
Inside box, total number of box must be 1,125 because area of 1 small box 1 square unit.
Total area of all box = 1,125 x 1 = 1,125 square units.
Given that the mean is $9.5 and the standard deviation is $1.30, the standard error will be given by:
σ/√n
where
σ-standard deviation
n=sample size
thus, we shal have:
1.30/√20
=0.2906
Next we find the margin error
0.2906*2=0.581
thus the confidence interval will be:
(9.5+0.581, 9.5-0.581)
=(10.081,8.919)
Answer: B
Step-by-step explanation:
-3(10x + 4y) + 6(6x - 2y)
= -30x - 12y + 36x - 12y
= 6x - 24y