5x^2-9 when x = -2
5(-2)^2-9
I know the answer is 11, but how? When I did it, I got -2...
Mathematics, 25.10.2021 14:00, andrew5632
5x^2-9 when x = -2
5(-2)^2-9
I know the answer is 11, but how? When I did it, I got -29 and I don’t know how to get 11. Could someone explain step by step on how to get the correct answer?
Answers: 1
Mathematics, 21.06.2019 19:00, eparikh7317
Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers
Answers: 1
Mathematics, 16.03.2020 23:18
Mathematics, 16.03.2020 23:19
English, 16.03.2020 23:19
English, 16.03.2020 23:19