90x^2+15x-30 (hope this helps)
Answer:
26
Step-by-step explanation:
24²+10²=x²
676=x²
x=√676
x=26
Pythagorean theorem
Answer: The answer is 2x + 7.
Explanation: First, we need to add the numbers:
9x + 3 – 7x + 4
9x + 7 - 7x
And finally, we combine like terms:
9x + 7 - 7x
2x + 7
Answer:
15 floors
Step-by-step explanation:
She parks on the third floor below ground +3
She goes up to the twelfth floor +12
3+12=15
They are parallel. the second one is just translated up by 5.