So you will need to solve for x and y before evaluating 2x+y....
2x-y=9, y=2x-9 now this will make 4x^2-y^2=171 become:
4x^2-(2x-9)^2=171
4x^2-(4x^2-36x+81)=171
36x-81=171
36x=252
x=7, now we can use 2x-y=9 to solve for y...
2(7)-y=9
14-y=9
-y=-5
y=5
now we know that x=7 and y=5, 2x+y becomes:
2(7)+5
14+5
19
<h3>
Answer:</h3>
angle E= 48° Angle W= 32°
<h3>
Step-by-step explanation:</h3>
from the first triangle,
calculating for the measure of E
32°+100° +m<E= 180° (sum of angle in a triangle equal 180°)
132°+m<E= 180
M<E= 180- 132= 48°
for the second triangle
calculating for the measure of W
48°+100°+m<W= 180°(sum of angle in a triangle equal 180°)
148° + W = 180°
W = 180-148= 32°
<h2>hope this helps!!!</h2>
Answer:A 4.6
Step-by-step explanation: 40/8=5; 23/5=4.6
Answer:
The one that belong in the dividend bracket is the volume for A. The one that belongs in the divisor bracket is volume C.
Step-by-step explanation:
That's my explanation on what the answer is supposed to be.
Answer:
7
Step-by-step explanation:
