Answer:
2x^{2}-3x-5 = 0
use the formula (b/2)^2 in order to create a new term. Solve for x by using this term to complete the square.
x= 5/2, -1
I'm sure you know the formula for Pythagoras Theorem.
The formula is 
C = Your hypotenuse
A + B = The other two adjacent sides.
So you plug in the numbers
And you'll get the answer, which is 56.
Answer:
40
Step-by-step explanation:
angles QPR and RPS are complimentary, so they equal 90, or angle QPS, so you can set up the equations like so:
7x - 9 + 4x + 22 = 90
Combine like terms:
11x + 13 = 90
Subtract 13 from each side:
11x = 77
Divide each side by 11:
x=7
Then use this value in the angle that you are finding:
7(7) - 9
49 - 9
40
40 is your answer
Hope this helps!
Answer:
A. -0.7
Step-by-step explanation:
