-4(2y)+11y=15, -8y+11y=3y=15: y=5
X=2(5)=10
To check your work -4(10)+11(5)=15
15=15
Answer:
Step-by-step explanation:
-A rectangle's area is given by:
Given A=
and 
, we substitute in the formula to solve for the width as follows:
Hence , the rectangle's width is 
Answer:
cos A = 12/13 = 0.9231
(angle A = 22.62°)
Step-by-step explanation:
cos A = 12/13 = 0.9231
Difference of two squares will be
16y^2 -x^2 = (4y -x)(4y +x)
so the second choice
The square root to the nearest integer is 7 because 7 times 7 is 49
