A because it has to be less than or equal to 143.15 so it can not be C or D. And you dont need the extra x so it is choice A
Answer:
set width as a, so length is 2a-4
a(2a-4)=70
2a^2 - 4a = 70
a^2 - 2a = 35
a^2 - 2a + 1 = 36
(a-1)^2 = 36 Because width can not be negative so we only take possitive answer.
(a-1) = 6
a = 7
2(7) - 4
=14-4
=10
Length = 10
Width = 7
Answer:
9 is the coefficient in this expression
Answer:
Step-by-step explanation:
8/-4 * -3/9
= (8)(-3) / (-4)(9)
= -24 / -36
= 24/36
= 4/6 (none of the options are the answer)
Answer:
x= 45
Step-by-step explanation:
In this diagram, there is an angle that is split into 2 angles.
The angle is a 90 degree angle. We know this because of the little square in the corner that denotes a right angle.
Therefore, the 2 angles inside of the right angle must add to 90 degrees. The 2 angles that make up the right angle are x and 45.
x+45=90
We want to find x. We need to get x by itself. 45 is being added on to x. The inverse of addition is subtraction. Subtract 45 from both sides.
x+45-45=90-45
x= 90-45
x=45
The measure of angle x is 45 degrees.
