Answer:
7. 49
8. 10.4
Step-by-step explanation:
7) our hypotenuse is 8, and the side opposite the base of ladder and ground angle is 6, therefore we can use Sin
sin = opposite/hypotenuse
sin(x) = 6/8 = 3/4
sin-1(3/4) = 49
8) using the theorem that alternate exterior angles are congruent
the angle opposite side x is 30
tan = opposite/adjacent
tan(30) = x/18
x = 18tan(30) = 6√(3) = 10.4
you can also use 30-60-90 special right triangles.
the side opposite 30 is x
side opposite 60 is x√(3)
and side opposite 90 is 2x
Answer:
the total of angle's in traingle is 180
so 85+53+c=180
c=180-138
c=42
Answer:
11 terms.
Step-by-step explanation:
The exponent indicates how many time you will multiply 7 by itself.
Answer:
0, 5/4
Step-by-step explanation:
If 
, you get 0=0, which is obviously true.
As long as K is not 0, you can divide by k and get 
which is solved by 
