Mathematics
Mathematics, 23.10.2020 09:01, grilloj72ovtlxv

Alec simplified the expression below. He then checked his work by substituting 3 for x. He noticed his two values were not equal. The expression gave him an answer of 27, and the simplified expression gave him an answer of 28.
What was Alec's error when simplifying?


Alec simplified the expression below. He then checked his work by substituting 3 for x. He noticed

answer
Answers: 1

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 16:30, Kayccee9958
Anyone know? is appreciated! will mark brainliest if correct!
Answers: 2
image
Mathematics, 21.06.2019 17:00, Calvinailove13
An air conditioning system can circulate 350 cubic feet of air per minute. how many cubic yards of air can it circulate per minute?
Answers: 3
image
Mathematics, 21.06.2019 22:40, googoo4
What is the value of p in the equation y^ = -4x?
Answers: 1
image
Mathematics, 21.06.2019 22:50, tali2561
Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?
Answers: 1
Do you know the correct answer?
Alec simplified the expression below. He then checked his work by substituting 3 for x. He noticed h...

Questions in other subjects:

Konu
Mathematics, 05.02.2021 17:00
Konu
Advanced Placement (AP), 05.02.2021 17:00
Konu
Mathematics, 05.02.2021 17:00