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Aleksandr-060686 [28]
3 years ago
12

Show work and answer .............

Mathematics
1 answer:
Lelechka [254]3 years ago
8 0

Answer:

1. 5

2. 5

3. -3

4.y= -1

5. 5

Step-by-step explanation:

1.)x- 2y= -25 ; y=3x

x-2(3x)=(-25)

x-6x=(-25) ; -5x=(-25) ; x=5

2.) 5x+3y =40; x=y

8y=40; y=5

3.) 4x-3y= -27; x=3y

4(3y)-3y= -27; 12y-3y=-27; 9y=-27; y=-3

4.)x-y=9; x=-8y; -8y-y=9; -9y=9; y=-1

5.) 2x+2y=30; y=2x ; 2x+2(2x)=30; 6x=30; x=5

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The equation of the piecewise function f(x) is below. What is the value of f(3)?
JulijaS [17]

Option B: 5 is the value of f(3)

Explanation:

The equation of the piecewise function is given by

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Thus, x=3 lies in the interval x\geq 0 , the function f is given by

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8 0
2 years ago
12 rounded to the nearest tenth in between 167
Alex777 [14]

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2 years ago
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Gekata [30.6K]

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1. what is the perimeter of the triangle?<br> 2. what is the area of the triangle?
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Answer:

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Sorry I cannot see the units of measure in the photo

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