Mathematics, 08.06.2021 18:20 amshearer4719
Sophia determined that the expression Negative (4 x minus 5) + 2 (x minus 3) is equivalent to –2x – 5 by using the steps below.
Expression: Negative (4 x minus 5) + 2 (x minus 3)
Expression: –2x – 5
Step 1:
Choose a value of x
Choose x = 1.
Choose x = negative 1.
Step 2: Substitute
Negative (4 (1) minus 5) + 2 (1 minus 3)
Negative 2 (negative 1) minus 5
Step 3: Evaluate
Negative (4 (1) minus 5) + 2 (1 minus 3) = negative (negative 1) + 2 (negative 2) = negative 3
Negative 2 (negative 1) minus 5 = 2 minus 5 = negative 3
Step 4:
Compare
Since –3 = –3, the two expressions are equivalent.
Which explains whether Sophia is correct?
Answers: 3
Mathematics, 21.06.2019 16:10, DepressionCentral
Which of the following graphs represents the function f(x) = 2^x
Answers: 2
Mathematics, 21.06.2019 20:50, kernlearn2312
In the diagram, gef and hef are congruent. what is the value of x
Answers: 1
Mathematics, 21.06.2019 21:40, carson5238
If angle b measures 25°, what is the approximate perimeter of the triangle below? 10.3 units 11.8 units 22.1 units 25.2 units
Answers: 2
Sophia determined that the expression Negative (4 x minus 5) + 2 (x minus 3) is equivalent to –2x –...
Health, 16.10.2020 19:01
Mathematics, 16.10.2020 19:01