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slega [8]
3 years ago
7

Ana knows the perimeter of her backyard is 6x+14x. if the length of her yard is 2x+3x-7,what is the width of her backyard? answe

r
Mathematics
1 answer:
vlada-n [284]3 years ago
3 0
Using the simple Perimeter formula we can set up our equation.
p = 2l + 2w
6x + 14x = 2(2x + 3x - 7) + 2w
20x = 4x + 6x - 14 + 2w
10x =  - 14 + 2w
10x + 14 = 2w
5x + 7 = w
Therefore the width is 5x + 7.
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Perpendicular Lines please help me guys I'm lostt
mamaluj [8]
9 = 2(6) - b
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4 0
3 years ago
Below are two different functions, f(x) and g(x). What can be determined about their slopes?
worty [1.4K]
<h3>Answer: B) the function g(x) has a larger slope</h3>

===================================================

Explanation:

The slope of f(x) is 4, since the equation y = 4x+2 has slope m = 4. Compare this to y = mx+b.

The slope of g(x) is 5. Note how if we started at (0,-2) on the red line and moved up 5 and to the right 1, we arrive at (1,3) which is another point on the red line. You could use the slope formula

m = (y2-y1)/(x2-x1)

to get the same result.

Since the slope of f(x) is 4 and the slope of g(x) is 5, we see that g(x) has a larger slope. The g(x) line is steeper compared to f(x).

6 0
3 years ago
Simplify
blagie [28]
-6-7(c+10)
-6-7c-70
-76-7c
B
8 0
2 years ago
A rectangular prism with length 12 m , width 8 m &amp; height 15 m , find its surface area .
Irina-Kira [14]

Answer: 792\ m^2

Step-by-step explanation:

Given

The length of the rectangular prism is l=12\ m

width of the rectangular prism is w=8\ m

height of the rectangular prism is h=15\ m

The surface area of the rectangular prism is 2[wl+lh+hw]

Put the values

\Rightarrow 2[8\times 12+15\times 12+15\times 8]\\\Rightarrow 2[96+180+120]=2\times 396\\\Rightarrow 792\ m^2

The surface area of the rectangular prism is 792\ m^2

7 0
3 years ago
The expression 3 (x minus 9) is equivalent to
miskamm [114]

Answer:3(x-9) is expressed as 3x-27

Step-by-step explanation: 3(Xminus9)

3(X-9)

Use 3 to open the bracket by using 3 to multiply everything in the bracket.

Then you will get

3x-27

8 0
3 years ago
Read 2 more answers
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