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lbvjy [14]
3 years ago
12

Which function models the area of a rectangle with side lengths of 2x – 4 units and x + 1 units? What is the area when x = 3?

Mathematics
1 answer:
Bingel [31]3 years ago
7 0

Answer:

8

Step-by-step explanation:

Length = 2x-4

Width = x+1

Let x=3 and find the length and width

Length = 2*3-4 = 6-4 =2

Width = x+1= 3+1 =4

The  area is given by

A = l*w = 2*4 = 8

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Paulina used 4. 1/2 yards of cloth. 1. 3/8 yards of white cloth 2. 3/4 yards of blue cloth to make a. Costume.How much cloth she
NemiM [27]
2 + 3/8 + 6/8 = 16/8 + 9/8 =


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4 0
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Find the slope of the following ^ :))<br> |
Luba_88 [7]

Answer:

m [slope] = 0

Step-by-step explanation:

When the slope is 0, x cancels out so the y value will remain the same.

There are several methods to finding slope but the easiest way to do this is by dividing the second y value - first y value by the second x value - first x value.

m = ∆y/∆x = y2-y1/x2-x1

You y2 and x2 are interchangable with y and x, because y1, and x1 are part of the starting coordinate,.

The reason you subtract the second

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So the slope is:

-1 - -1 / 3 - -2 = -1 + 1 / 3 + 2 = 0 / 5 = 0.

5 0
3 years ago
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What is the value of + 2x2, when x = 3?<br> х<br> 11<br> O 14<br> O 20
evablogger [386]

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5 0
2 years ago
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Solve each system by substitution 2x + y = 20 and 6x - 5y = 12
ivolga24 [154]

\huge\mathbf{Answer࿐}

\underline{ \underline{ \bf{step} - 1}}

Taking first equation,

  • 2x + y = 20

  • y = 20 - 2x

\underline{ \underline{ \bf{step} - 2}}

plugging the value of y in second equation,

  • 6x - 5y = 12

  • 6x - 5(20 - 2x) = 12

  • 6x - 100 + 10x = 12

  • 16x = 12 + 100

  • x =  \dfrac{112}{16}

  • x = 7

\underline{ \underline{ \bf{step} -3}}

plugging the value of x in first equation,

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<h2>Conclusion :</h2>

  • x = 7
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____________________________

\mathrm{ \#TeeNForeveR}

6 0
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