Answer:
8+2+
Step-by-step explanation:
The answer is A) x(2x+12)
Answer:
7x
Step-by-step explanation:
f (x)=x+4=4x,g (x)=5x-2=3x
4x+3x=7x
The answer is C because it’s twice as long
Answer:
See below ~
Step-by-step explanation:
<u>Change in KE if mass is doubled</u>
- KE (original) = 1/2mv²
- KE (new) = 1/2 x (2m) x v²
- KE (new) = mv²
- ⇒ <u>KE is doubled</u>
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<u>Change in KE if speed is doubled</u>
- KE (new) = 1/2 x m x (2v)²
- KE (new) = 1/2 x 4 x mv²
- KE (new) = 2mv²
- ⇒ <u>KE is quadrupled</u>
