Answer:
80°, 40° and 60°
Step-by-step explanation:
Name the second angle X and the first angle to 2X (because it is twice the measure of angle number two) and the third angle to 20°+X (because it was 20° more than the second angle)
so we will have an equation of
180°=2x + x + (20°+x)
160°=4x
40°=x
so the second angle is 40° as it is represented by just one X
therefore the first angle which is twice the measure is 80° and the third angle which is 20° more is 60°. hope that helps!
We know that
<span>the vertex form of the equation is
y=a(x-h)</span>²+k
we have
y = 7x² + 14x +4
y=7(x² + 2x) +4
y=7(x² + 2x+1-1) +4
y=7(x² + 2x+1) +4-7
y=7(x+1)²-3
the answer is
y=7(x+1)²-3
It’s 175.5 multiply length x with x height
Answer:

Step-by-step explanation:
To solve for y, you have to isolate it on one side of the equation.
<h3>12x+3y=9</h3>
<u>First, you have to subtract by 12x from both sides.</u>

<u>Solve.</u>

<u>Then, you divide by 3 from both sides.</u>

<u>Solve.</u>


Use the distributive property.

<h3>⇒A(B+C)=AB+AC</h3>
9-12x=3(3-4x)

<u>Divide the numbers from left to right.</u>
3/3=1
3-4x
<u>Then, rewrite the problem down.</u>

- <u>Therefore, the correct answer is y=3-4x.</u>
I hope this helps! Let me know if you have any questions.
Definitely would have to be a rhombus