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Leviafan [203]
4 years ago
11

Ow many solutions does the system of equations –6a + b = 14 and –12a + 2b = 28 have?

Mathematics
1 answer:
Dmitry [639]4 years ago
3 0
Indefinite amount of solutions.
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A quadtratic equation that has x intercepts of -8,0 and 2,0 and has a vertical stretch of 3
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Answer:

f(x) = 3(x + 8)(x - 2)

Step-by-step explanation:

The intercept form of a quadratic function is y = a(x - r)(x - s), where r and s are the x-intercepts and a is the vertical stretch/compression factor.

If the intercepts are at (-8, 0) and (2, 0), and the vertical stretch is 3, just substitute these values into the intercept form formula, and you're done!

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4 years ago
Lena took a test with 20 questions. She lost 5 points for each of the 12 questions she got incorrect, however, gained 20 points
Makovka662 [10]

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17

Step-by-step explanation:

6 0
3 years ago
Help if your gonna answer plz explain it
Katyanochek1 [597]

So you wanna find the area of each surface:

For the large square surface in the top you do 12*15=180 and there are two large squares faces so you multiply 180 by 2 which equals 360 then you find the small rectangle faces: 5*15=75 and multiply by 2 Bc there are 2 faces like that so it would be 75*2=150 then for the last faces you do 12*5= 60 *2= 120 at the end I add all of the faces up, 360+150+120=630

6 0
4 years ago
Evaluate |2x+y-3z| for x=-2, y=10, and z=3<br> How to solve?
Angelina_Jolie [31]
|2x + y - 3z|
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4 0
4 years ago
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Is 5 equal to -5 in math
elena-14-01-66 [18.8K]

Answer: No

Step-by-step explanation: If it is talking about the reciprocal then yes. Reciprocal is the opposite of your number.

Example: -4 IS 4 reciprocal.

6 0
3 years ago
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