Answer:
A. -8
B. -8
C. 20
Step-by-step explanation:
7 will never equal 8 so there is no solution. so i think it is C
Answer:
Step-by-step explanation:
we know that
The area of the right triangle ABC is equal to

we have



substitute the values





The formula to solve a quadratic equation of the form
is equal to
in this problem we have

so
substitute in the formula
therefore
The solution is
Answer:
x=64
Step-by-step explanation:
f= 77°
d=75°
e=28°
they are vertical angles