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:
Brand D
Step-by-step explanation:
because it cost the most but it also has the most feet
Answer:
9
Step-by-step explanation:
you tube the 0 or 08 percent out in your home to get your first one is your first step forward on this level as you can do for your child to 7have 8and 8in 8the 8job is that it doesn't 7make 9inches 8with for 7me the are or
Answer:
if you are asking for the real number, the answer would be 45.21
Step-by-step explanation:
We simply multiply by 10 since we are given 1 as an exponent