Answer:
ABC is isosceles
Step-by-step explanation:
First we will do -3 times everything in the parenthesis.
-3 times -4n = 12n
-3 times 30 = -90
SO,
12n - 90 = -30
+90 +90
12n = 60
divide 12 on both sides;
n = 5
This is your answer,
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Tan67=h/137
h=137tan67
h≈322.751 ft
h≈322.75 ft (to nearest hundredth of a foot)
So since its a right triangle, we can use the pythagorean theorem, which is
. Since we know that 2 and 3 are our legs and x is our hypotenuse, we can solve the equation as such:

Since √13 can't be further simplified, that is your final answer.
Answer:
1
Step-by-step explanation:
x*4+7-3=8
4x+7-3=8
4x+4=8
4x=4
x=1