HELP ME HELP ME please !!! 10 points

Mathematics

2 answers:

AnnZ [28]2 years ago

6 0

Answer:

4 &15 i think

Step-by-step explanation:

ddd [48]2 years ago

4 0

Answer:

slope is rise over run (rise/run) so the slope is 3/2 and y-int is at (0,9)

Step-by-step explanation:

lol i commented it earlier^^^^^

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How many solutions does the equation −4y + 4y + 2 = 2 have?

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The length of a rectangular box is 4 times its width, and its height is 7in more than its width. The volume of the box is 126in3

Ierofanga [76]

Answer:

1.88 inches

Step-by-step explanation:

The volume is the product of length, width, and height. If w represents the width of the box, then its length is 4w and its height is w+7. The volume is then ...

V = (4w)(w)(w+7)

We want to find the value of w that makes V=126. It is convenient to use the graphing calculator to look for zeros of a function, so we can write the equation as ...

V - 126 = 0

4w·w·(w+7) -126 = 0

The only positive solution to this equation is near w ≈ 1.883.

The width of the box is about 1.88 inches.

_____

Attached is output from the DESMOS free graphing calculator. The ALEKS calculator requires a subscription. The method of solution is substantially the same, but requires a little more work on the ALEKS calculator to find the zero-crossing.