Answer:
31x² - 2
Step-by-step explanation:
5(2x²-1)+3(7x²+1) = 5*2x² - 5*1 + 3*7x² + 3 = 10x² - 5 + 21x² + 3 = 31x² - 2
Answer:
B
Step-by-step explanation:
Hope this helps plus happy new year!
Answer:
A=146
Step-by-step explanation:
0.15*146=21.9
28.1+21.9=50
Answer:
24.8571
Step-by-step explanation:
Answer:
B, E, F
Step-by-step explanation:
If we were replacing these numbers with x, it’s simple.
Just know that √144=12
So,
we definitely know √20736 is way bigger that 12.
√143 is less that √144 (which is equal to 12), so this is a correct answer.
√144=12, so this answer is <em>not applicable </em>.
√145 is bigger that √144 (which, again, is equal to 12), so this wouldn’t be a valid answer.
And finally, we have √125 which is smaller that √144 (which, is equal to 12), so this answer is valid.
