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san4es73 [151]
3 years ago
10

-5⁄2 a + 5 = 25 What Does A =

Mathematics
1 answer:
ruslelena [56]3 years ago
6 0

Answer:

a = -8

Step-by-step explanation:

-5⁄2 a + 5 = 25

Subtract 5 from each side

-5⁄2 a + 5-5 = 25-5

-5/2 a = 20

Multiply each side by -2/5 to isolate a

-2/5 * -5/2 a = -2/5 *20

a = -8

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Lapatulllka [165]

Answer:

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Step By Step Explanation:

The values can be find by plugging the x values in the equation which gives us the y value ,

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y 1 -3 -3 1 9

(b) Plot the points on the graph and join by a smooth curve.

(c) The line y=1 will be passing through 1 and parallel to x-axis.

(d) solve 2x^2 + 2x - 3 = 1

Subtract 1 from both the sides ,

2x^2 + 2x - 2 = 0

Factoring out the 2 from the equation ,

2(x^2 + x - 1) = 0

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Apply the quadratic formula

x=(-1-sqrt(5))/2 and x = (-1+sqrt(5))/5

5 0
3 years ago
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FromTheMoon [43]

Answer:

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Step-by-step explanation:

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5 0
2 years ago
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Mandarinka [93]

Answer:

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Step-by-step explanation:

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