subject
Mathematics, 11.02.2020 00:33 cecelia090

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? She is correct because the value of the two expressions are the same in Step 3. She is correct because she substituted opposite values in Step 1. She is not correct because she did not substitute the same number in both expressions in Step 1. She is not correct because she did not perform the correct order of operations in Step 3

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 13:20
Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c?
Answers: 1
question
Mathematics, 21.06.2019 17:40
Solve the given system of equations. 2y= -x+9 , 3x-6= -15
Answers: 2
question
Mathematics, 21.06.2019 18:30
Use δjkl and δmpn to determine whether don's claim is true or false. which of the following should don use to prove the triangles are similar? sss sas aas aa
Answers: 1
question
Mathematics, 21.06.2019 20:40
If the endpoints of the diameter of a circle are (8, 6) and (2,0), what is the standard form equation of the circle? a) (x + 5)2 + (y + 3)2 = 18 (x + 5)2 + (y + 3)2 = 3.72 (x - 5)2 + (y - 3)2 = 18 d) (x - 5)2 + (y - 3)2 = 32
Answers: 1
You know the right answer?
Sophia determined that the expression Negative (4 x minus 5) + 2 (x minus 3) is equivalent to –2x –...
Questions
question
Mathematics, 27.03.2020 05:07
question
Mathematics, 27.03.2020 05:08
Questions on the website: 13722360