Mathematics, 02.12.2021 05:50 emmie50
If 9x + 7y = -1 and - 4x - 8y = 2 are true equations, what would be the value of 13x + 15y?
Answers: 2
Mathematics, 21.06.2019 14:10
Which linear equations have an infinite number of solutions? check all that apply. (x – 3/7) = 2/7(3/2x – 9/14)8(x + 2) = 5x – 1412.3x – 18 = 3(–6 + 4.1x)(6x + 10) = 7(x – 2)4.2x – 3.5 = 2.1 (5x + 8)
Answers: 3
Mathematics, 21.06.2019 14:50
50 ! pls ! 12. building codes regulate the steepness of stairs. homes must have steps that are at least 13 inches wide for each 8 inches that they rise.

a. discuss how to find the slope of the stairs.
b. describe how changing the width or height affects the steepness of the stairs.
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Mathematics, 21.06.2019 16:00
What is the standard deviation of the following data set rounded to the nearest tenth? 3, 17, 18, 15, 12, 21, 9
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Mathematics, 21.06.2019 20:30
Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?
Answers: 2
If 9x + 7y = -1 and - 4x - 8y = 2 are true equations, what would be the value of 13x + 15y?...
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