6questions, 60 points
1. describe the cross section of a sphere.
the cross s...
Mathematics, 16.10.2019 09:10 Jasten
6questions, 60 points
1. describe the cross section of a sphere.
the cross section is a circle.
the cross section is a square.
the cross section is a cone.
the cross section is a triangle.
2.solve -0.5y > 15. check your solution.
y < -30
y < -7.5
y > -30
y > -7.5
3.an edge on a polyhedron is the intersection of three or more faces.
true
false
4. solve t/-10≤7
a. t≤-70
b. t≥-0.7
c. t≥70
d. t≤-0.7
5.amber is using 3 ft by 14 ft sheets of wallpaper to cover a rectangle wall that has an area of 240 ft squared. what is the least number of sheets of wallpaper she will need?
a. 6 sheets
b.15 sheets
c. 5 sheets
d. 5.71 sheets
6.solve – d + 5 + 2d > 1. check your solution.
d < - 4
d > - 4
d > 6
d < 6
Answers: 3
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Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14
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