Answer:
117 degrees
Step-by-step explanation:
Two vertical angles will always equal each other.
So, set up an equation where angle A and angle B equal each other to solve for x:
5x - 3 = 4x + 21
5x = 4x + 24
x = 24
Plug in 24 for x in the expression represent angle A:
5(24) - 3
120 - 3
117
Answer:
It should have 20 vertices, and the name is dodecahedron
Step-by-step explanation:
Hey there!!
You can simply do it.
Here, -3x -6 +(-1) is given.
In this question, the like term is "-6" and "-1" because both are coefficients.
Combine it.
= -3x -6 -1 { as (-) (+)=(-)}
= -3x -7 { when there is (-) sign then it will be added but the sign would be minus}.
Or you can also write it as -( 3x+7). {taking (-) common}
<em><u>Hope it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>
64+96=160. I just plugged in the numbers!
