X + (y + 2) = (x + y) + z. A. False B. True

Mathematics

1 answer:

Serga [27]3 years ago

5 0

A .
this is false
There’s no answer for x and y

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If you are framing a photo that is 4in by 7 in, and you want the frame to be the same width all around, and the total area of th

aliina [53]

Answer:

3.36in

Step-by-step explanation:

The total surface area of the cardboard is expressed as;

TSA = 2(LW + LH + WH)

L is the length = 4in

W is the width

H is the height = 7in

TSA = 130in²

Substitute the given values into the formula and get the width W

TSA = 2(LW + LH + WH)

130 = 2(4W+4(7) + 7W)

130 = 2(11W+28)

130 = 22W+56

22W = 130 - 56

22S = 74

W = 74/22

W = 3.36in

hence the width of the photo is 3.36in

4 0

3 years ago

How to graph {3x-8y = 29

labwork [276]

How to graph {3x-8y = 29 3x+y = -2}
 The first thing you should do is to clear "y". Then, you must substitute values of x in the equation to find the values of "y". Finally, graph the points obtained. (see graphic)
How do you convert this to slope intercept form? 3x-8y = 29 ---> y = 0.375x - 3.625 3x+y = -2 ---> y = -3x - 2