Answer:
Does the answer help you?
Step-by-step explanation:
it has 4 sides, all of whick are equal. Answer is 4*4, 16.
Answer:
(3,4)
Step-by-step explanation:
x+y=7, where y=4, so therefore make x the subject and substitute y=4
x=7-y
x=7-4
x=3
therefore x=3, y=4.
Answer: 5 inches.
Step-by-step explanation:
The formula for calculate the area of a rectangle is:

Where l is the length and w is the width.
If the length of a rectangle is 3 inches more than twice it’s width, then:

Substitute
and the area into the formula and solve for the width:

Use the quadratic formula:

Choose the positive value.
Therefore, the width is: 5 inches.
Answer:
x = 
y = 
Step-by-step explanation:
the ratio of the sides of a 45 - 45 - 90 triangle is shown at the bottom of this answer.
as you can see, it is x:x:
The side given is x
, so you have:

divide both sides by 
x = 
multiply this by 


y is also equal so y = 