I know that
20. 15
21. 18
Good luck though I remember doing it
The common ratio of the sequence 3, 9, 27, 81 is 3
n to the power of 3
1 to the power of 3 = 3
2 ... = 9
3 ... = 27
4 ... =81
The sum of length and width is half the perimeter, so is (70 in)/2 = 35 in. Since this is the sum of length and width, if we add 5 inches, it will be twice the length. That is ...
... length + width = 35 in
... length + (width + 5 in) = (35 in) + (5 in)
... 2×length = (35 in) + (5 in) = 40 in
The length of the rectangle is 20 inches.
<h3>
Answer: 22 (choice C)</h3>
Work Shown:
IQR = Q3 - Q1
IQR = 70 - 48
IQR = 22
Note: Q1 and Q3 are the left and right edges of the box. The IQR is the width of the box.
The roots of this equation can be found with
(x+2)(x-3)=0 x+2=0 and <span>(x-3)=0 so x=-2 and x=3</span>
