Answer:
72
Step-by-step explanation:
Well to make life easier just simplify the fraction
80/100 could be simplified to 4/5
4/5*90 is 72
So you want to solve for x?
It would be nice if this would easily factor:
(-4x + 5)(2x +1) = 0 This will not work!
So you need to use the quadratic formula:
a = -8, b = 4, c = 5

x = (-4 +/-

)/2(-8)
= (-4 +/-

)/-16
= (-4 +

)/-16
= 1/4 -

/4
Using the Pythagorean Theorem, the height of the equilateral triangle is given by:
A.
inches.
<h3>What is the Pythagorean Theorem?</h3>
The Pythagorean Theorem relates the length of the legs
and
of a right triangle with the length of the hypotenuse h, according to the following equation:

For this problem, we have that:
- The height is one side of the triangle.
- The other side is half the length, of 7 in.
- The hypotenuse is the length, of 14 in.
Hence the height is found as follows:



inches.
More can be learned about the Pythagorean Theorem at brainly.com/question/654982
#SPJ1
(16xy + xy) + (4x) + (3y) + (-13 + 21)
17xy + 4x + 3y + 8
Answer:
1
Step-by-step explanation:
There is no lcm other than 1 between these 3 numbers
5 factors: 1, 5
10 factors: 10,1,5,2
16 factors:16,1,4,4,8,2
All of these have the number one in common, hence the answer