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Elis [28]
3 years ago
12

What is the answer too r2+15r+36=0

Mathematics
1 answer:
Rashid [163]3 years ago
3 0
R2+15r+36=0 the answer is r=6
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suppose a parabola has an axis of symmetry at x = -8, a maximum height of 2, and passes through the point (-7, -1). Write the eq
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Answer:

<h3>            f(x) = - 3(x + 8)² + 2</h3>

Step-by-step explanation:

f(x) = a(x - h)² + k   - the vertex form of the quadratic function with vertex    (h, k)

the<u> axis of symmetry</u> at<u> x = -8</u> means h = -8

the <u>maximum height of 2</u> means  k = 2

So:

f(x) = a(x - (-8))² + 2

f(x) = a(x + 8)² + 2   - the vertex form of the quadratic function with vertex   (-8, 2)

The parabola passing through the point (-7, -1) means that if x = -7 then        f(x) = -1

so:

    -1 = a(-7 + 8)² + 2

 -1 -2 = a(1)² + 2 -2

      -3 = a

Threfore:

The vertex form of the parabola which has an axis of symmetry at x = -8, a maximum height of 2, and passes through the point (-7, -1) is:

                                 <u>f(x) = -3(x + 8)² + 2</u>

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3 years ago
A grid of 100 squares shows 7 shaded squares what decimal number is represented
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0.07

Step-by-step explanation:

This is because 7/100 is 7% and as a decimal is 0.07

Make me Brainlist

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A Web music store offers two versions of a popular song. The size of the standard version is 2.9 megabytes (MB). The size of the
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2343443444<br> Is it rational or irrational?
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Answer:rational

Step-by-step explanation:

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Which expression is equivalent to –4(5x – 9) + 6(2x + 5)?
Montano1993 [528]

Answer:

expression equivalent given question is <em><u>93 - 8 x.</u></em>

<em><u>mark this as brainliest!</u></em>

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