m∠A + m∠B = 90, since the angles are complementary.
The question also tells us that m∠A = (2x + 10) and m∠B = (-x + 55)
So, all we have to do is input the angle's values into the first equation:
(2x+10) + (-x+55) = 90
Simplify:
x + 65 = 90
x = 25
Input the variable into the angles:
m∠A = 2(25) + 10 = 50 + 10 = <u>60°</u>
m∠B = -25 + 55 = <u>30°</u>
Answer:
C
Step-by-step explanation:
A proportional graph is a line. Every line has a slope. The slope is found by subtracting two points as a ratio. The line has points (0,0) and (2,6).
6-0 = 6
2 -0 = 2
The ratio is vertical over horizontal so 6/2 = 3.
The equation is y = 3x.
Answer:
The area will be 834.38
Step-by-step explanation:
hope it helps..
Answer:
Erica did
Step-by-step explanation:
60% of 30 is 18
20% of 70 is 14
Let
x-------> the length of the base of triangle
y-------> the height of the triangle
we know that
the area of the triangle is equal to
in this problem we have
so
--------> equation 
--------> equation 
Substitute equation in equation
![\frac{1}{2}x[2x+4]\leq 168](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7Dx%5B2x%2B4%5D%5Cleq%20168)
therefore
<u>the answer is</u>
The inequality that can be used to find the possible lengths, x, of the base of the triangle is or
