Answer:
4t³-5t²+2t+200 - (3t³-2t²+5t+100) = t³-3t³-3t+100
Step-by-step explanation:
Exactly 10,000 it’s hard to explain though it’s really complicated
Answer:
x=4 and the solution is not extraneous
Step-by-step explanation:

This solution is not extraneous, because plugging it back in you get:

Hope this helps!
A, C, and D are the answers.
Answer:
z = -3
Step-by-step explanation:
<u>Use the formula for z-score</u>

This tells us that the person's score of 150 puts him/her 3 standard deviations below the mean of 300.