Answer:
what are the choices
Step-by-step explanation:
Simplify
9x^3 - 4x + 10 + x^3 + 10x - 9
Collect like terms
(9x^3 + x^3) + (-4x + 10x) + (10 - 9)
Simplify
<u>10x^2 + 6x + 1</u>
Answer:
20
Step-by-step explanation:
1 hour=2 kg
10 hrs=10×2=20
Mark as brainliest please!
Answer:
D
Step-by-step explanation:
loudness depends on the amplitude or height of the sound waves