how do you simplify questions like these? 5(11-9)squared +75(-2)
2007-04-16 08:16:16 · 5 answers · asked by ~TwInKiE~ 2 in Science & Mathematics ➔ Mathematics
first work out the brackets
So 5(11-9)^2 + 75(-2) = 5(2)^2 + 75(-2)
= 5(4) + 75(-2)
= 20 - 150
= -130
(^2 is the same as saying squared or the power of 2)
2007-04-16 08:21:00 · answer #1 · answered by Anonymous · 1⤊ 0⤋
1. First solve within the parentheses.
2. Next square the answer within the parentheses.
3. Multiply the answer by 5.
4. Add them together.
1. 5(11-9)(squared)=5(2)squared, and 75(-2)=-150
The problem becomes 5(4)- 150
2. 5(4)=20
3. 20-150= -130
2007-04-16 15:27:34 · answer #2 · answered by ICYCUBE 2 · 0⤊ 0⤋
First subtract 11 and 9 to get 2.
2 to the second is 4.
five times 4 is 20.
75 times -2 is -150.
20-150 is -130
2007-04-16 15:23:16 · answer #3 · answered by Amanda 3 · 0⤊ 1⤋
Assume question is meant to read:-
5.(11 - 9)² - 150
= 5 x 4 - 150
= 20 - 150
= - 130
2007-04-16 15:29:18 · answer #4 · answered by Como 7 · 0⤊ 0⤋
Parentheses first:
5(2)squared +75(-2)
then exponents:
5x4+75(-2)
then multiply
20 + -150
then add
-130
2007-04-16 15:23:14 · answer #5 · answered by cat n 3 · 0⤊ 0⤋