Answer: C
Step-by-step explanation:
Answer:
9. y = 8
10. n = 21
11. 44 = v
12. c = 35
Step-by-step explanation:
9. 9y = 72
Divide each side by 9
9y/9 = 72/9
y = 8
10. 3n = 63
Divide each side by 3
3n/3 = 63/3
n = 21
11. 4 = v/11
Multiply each side by 11
4*11 = v/11*11
44 = v
12. c/7 = 5
Multiply each side by 7
c/7*7 = 5*7
c = 35
Answer: Obtuse
Step-by-step explanation:
Acute angles are Between 0 and 90 degrees
Right angles are 90 degrees
Obtuse angles are 90-180 degrees
And straight angles are 180 degrees
Note: Between mean like Ex. between 1-10 it would be 2, 3, 4,... 8, 9
Divide the coefficient of x by 2 then square the quotient.
Add the result to both sides of the equation.





Factor the left-hand side.

Square both sides.

Subtract both sides by 4.


Simplify.


So, x can either equal -4 + 7 or -4 - 7
So, the answer is {-11, 3}
NOTE: You're probably seeing a strange A in the equations. I tried to fix it, but I couldn't. Sorry about that.