1)Suppose x = 2y - 7. What is x, if y = 5?
A) 0
B) 1
C) 3
D) 5
2)Consider the net of a triangular prism where each unit on the coordinate plane represents four feet. If a sheet of plywood measures 4 ft x 8 ft, how many sheets of plywood will a carpenter need to build the prism?
A) 2
B) 3
C) 4
D) 5
3)
Which data set does the box plot represent?
A) {54, 66, 81, 80, 57, 53, 69, 68, 70, 60, 70}
B) {56, 66, 81, 80, 57, 55, 69, 68, 71, 60, 70}
C) {54, 66, 79, 78, 59, 56, 69, 71, 70, 60, 70}
D) {56, 66, 83, 80, 58, 58, 69, 68, 70, 60, 71}
4)Find the area of the polygon.
A) 96 cm2
B) 192 cm2
C) 208 cm2
D) 224 cm2
5)Evaluate if x = -3
3x - 4
A) -13
B) -7
C) -1
D) 5
6)Consider that point A is located at (x, y) in Quadrant I of the coordinate plane. In which quadrant is point B with coordinates (-x, y) located?
7)Which equation is BEST illustrated by the picture?
A) 3(10 + 2) = 10(2) + 3(2)
B) 3(10 + 2) = 3(10) + 3(2)
C) 3(10 + 2) = 3(10) + 2
D) 3(10 + 2) = 3(2) + 10
( Please help having trouble trying to calculate and understand this )
5 answers
I'll be glad to check your work and answer for number 1. Then, I'll help you with the second one.
2*5 =10
10 - 7 = 3
x = 3
am I right ?
2. Sorry, but I don't understand that problem.
3. and 4. Insufficient information
5. This looks easy. Substitute.
6. I don't know.
7. No picture.
Please repost questions 2 and 6 and a more knowledgeable math tutor may be able to help you.
3(-3)-4
-9+-4 = -13
(Remember to switch the signs when subtracting negative numbers)
x = 3.