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pychu [463]
4 years ago
10

I need help starting with 2b. I know my equation for #2 but not 2b.

Mathematics
1 answer:
SSSSS [86.1K]4 years ago
7 0
When you have your equation, just plug in the month number as x.
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We need a rock garden with a perimeter of 12 feet and an area of 8 square feet what is the length and width
Katarina [22]

The dimensions of the rectangle can be a length of 2ft and a width of 4ft.

<h3>How to find the dimensions of the garden?</h3>

Remember that for a rectangle of length L and width W, the perimeter is:

P = 2*(L + W)

And the area is:

A = L*W

In this case, we know that the area is 8 square feet and the perimeter is 12 ft, then we have a system of equations:

12ft = 2*(L + W)

8ft² = L*W

To solve this, we first need to isolate one of the variables in one of the equations, I will isolate L on the first one:

12ft/2 = L + W

6ft - W = L

Now we can replace that in the other equation to get:

8ft² = (6ft - W)*W

This is a quadratic equation:

-W^2 + 6ft*W - 8ft² = 0

The solutions are given by Bhaskara's formula:

W = \frac{-6 \pm \sqrt{(6ft)^2 - 4*(-1)*(-8)} }{2*-1} \\\\W = \frac{-6 \pm 2}{-2}

Then we have two solutions:

W = (-6 - 2)/-2 = 4ft

W = (-6 + 2)/-2 = 2ft

If we take any of these solutions, the length will be equal to the other solution.

So the dimensions of the rectangle can be a length of 2ft and a width of 4ft.

if you want to learn more about rectangles:

brainly.com/question/17297081

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4 0
3 years ago
A calendar shop has 3,500 calendars. Each rack can hold 500 calendars. How many racks does the store need to use?
insens350 [35]
About 6 racks or storage
7 0
3 years ago
Read 2 more answers
What is the value of x in the equation −x = 6 − 3x + 8?<br><br> −14<br> −7<br> 14<br> 7
krek1111 [17]

Answer:

  x = 7

Step-by-step explanation:

Add 3x to both sides of the equation.

  2x = 6+8

Divide both sides by 2.

  x = 7

3 0
4 years ago
Need help ASAP!!!! <br><br>What is the scale of the coordinate plane shown?<br>1<br>3<br>1/3<br>-3
Grace [21]

Answer:

B, 3 the numbers go in multiples of 3 you see it goes 3, 6, 9 12, 15 they can all be divided by 3

Step-by-step explanation:

5 0
3 years ago
The sum of three consecutive integers is 120. What are the integers.
bezimeni [28]
1. Three consecutive integers: x, x+1, x+2, such that:
x + x + 1 + x + 2 = 120
3 x + 3 = 120
3 x = 117
x = 117:3= 39
The integers are: 39,40,41.
2.
 x + x + 2 = x +1 +21
 2 x - x = 22 - 2
 x = 20
The integers are: 20,21,22.
3. Four consecutive even integers: x, x+2, x+4, x+6
4 ( x + x + 2 ) = 7 (x + 6 ) - 8
8 x + 8 = 7 x + 42 - 8
8 x - 7 x = 34 - 8
x = 26
The integers are: 26, 28, 30 , 32. 
6 0
4 years ago
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