Answer:
count that many 9s by the number your multiplying by.
Step-by-step explanation:
so example think of it like this =
9 x 9
9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 + 9 = 81
9 x 9 = 81
that easy ! just add the amount of 9s to the number your multiplying by . if u still need help, go on You Tube and search MathAntics .. he explains every different types of math amazing !
The prime numbers between 30 and 45 are 31, 37, 41, and 43
Answer:
ET = 80/A^2
Step-by-step explanation:
First, isolate the variables that you need, which is E and T, using the two equations you were given.
EA = 8
E = 8/A (divide A on both sides to isolate E)
AT = 10
T = 10/A (divide A on both sides to isolate T)
Now, substitute.
ET --> (8/A) x (10/A) = 80/A^2
That is C. my fellow brainy hope you get an A+
128 = 8d, because the product calls for multiplication to be performed.