A
you have to solve x^2+x-5=0
So x=(-1 +/- sqrt(1^2+4*1*5))/2
x=(-1 +/- sqrt(21))/2
Answer: the answer is 11
Step-by-step explanation: to find the value of x, you must find the average of the two bases. So the equation would be 56= 4x+2x-10. Once you simplify that, you get x=11.
Answer:

Step-by-step explanation:
Hi there,
The correct quotient is first answer choice.
Cheers.
Answer:
What?
Step-by-step explanation:
What do u need help with
Answer:
60°
Step-by-step explanation:
Complementary angles both add up to 90°. Therefore if one angle is twice the other, then if we divide 90 by 3 then we get 30. Two parts of 30 is 60 plus the other 30 and we get 90. The individual angle is 60°and the other is 30°