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Andrews [41]
3 years ago
14

If (a, -5) is a solution to the equation 3a = -2B - 7, what is a?

Mathematics
1 answer:
Andrew [12]3 years ago
3 0
I think what you need to do is make B = -5
3a = -2(-5) - 7
3a = 10 - 7
3a = 3
a = 1
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Oduvanchick [21]
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Answer:

<u>Given </u>

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A

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4 0
3 years ago
The sum of two numbers is 56, and their difference is 10. What are the numbers?
Elanso [62]

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Llana [10]

Answer:

The correct option is;

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Step-by-step explanation:

The equation of the parabolic arc is as follows;

y = a(x - h)² + k

Where the height is 25 ft and the span is 40 ft, the coordinates of the vertex (h, k) is then (20, 25)

We therefore have;

y = a(x - 20)² + 25

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0 = a(0 - 20)² + 25

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The equation of the parabola is therefore;

y = (-\frac{1}{16})(x-20)^2 + 25

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