subject
Mathematics, 23.10.2020 02:01 23rwilliamson

FIND THE ERROR Sierra solved the compound inequality - 3x + 7x-1<-5 or -3x + 7x – 1 > 11 as shown. What error did she make in solving the inequality?
Step
Property
Step
Property
-3x + 7x-1(-5
Original inequality
-3x + 7X - 1 > 11
Original inequality
4X - 1(-5
Combine like terms.
-4X - 1 > 11
Combine like terms.
4XC-4
-4X > 12
Addition Property
Division Property
Addition Property
Division Property
XC-1
XC-3

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 15:20
The vertices of a rectangle are given in the columns of the matrix . if is found to perform a transformation, what are the coordinates of the transformed rectangle? (0, 0), (0, –3), (–3, –3), (–3, 0) (0, 0), (0, 3), (3, 3), (3, 0) (0, 0), (0, 3), (–3, –3), (–3, 0) (0, 0), (0, 3), (–3, 3), (–3, 0)
Answers: 1
question
Mathematics, 21.06.2019 15:20
Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?
Answers: 3
question
Mathematics, 21.06.2019 21:00
Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)
Answers: 2
question
Mathematics, 21.06.2019 22:00
Students at a high school were asked about their favorite outdoor activity. the results are shown in the two-way frequency table below. fishing camping canoeing skiing total boys 36 44 13 25 118 girls 34 37 22 20 113 total 70 81 35 45 231 select all the statements that are true based on the given table. more girls chose camping as their favorite outdoor activity than boys. more girls chose canoeing as their favorite outdoor activity than those who chose skiing. more boys chose skiing as their favorite outdoor activity than girls. there were more boys surveyed than girls. twice as many students chose canoeing as their favorite outdoor activity than those who chose fishing. more students chose camping as their favorite outdoor activity than the combined number of students who chose canoeing or skiing.
Answers: 1
You know the right answer?
FIND THE ERROR Sierra solved the compound inequality - 3x + 7x-1<-5 or -3x + 7x – 1 > 11 as sh...
Questions