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3 years ago

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The vertex of a parabola is at (-2,-3). When the y-value is -2, the x-value is -5. What is the coefficient of the squared term i

n the parabola's equation?

1 answer:

denis23 [38]3 years ago

4 0

Answer:

$y=a(x+2)^{2} -3\\-2=a(-5+2)^{2} -3\\\frac{-2+3}{9} =a\\a=\frac{1}{9} \\$

Step-by-step explanation:

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Here is a system of equations:

laila [671]

Answer:

y = -10

Step-by-step explanation:

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-7y = 70

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3 years ago

Read 2 more answers

Consider a population consisting of the number of teachers per college at small 2-year colleges. Suppose that the number of teac

agasfer [191]

Answer:

a) $\frac{8}{9}$ =0.89

b) 0.8413

Step-by-step explanation:

we know that

$P(║ x -\mu║ \leq k\sigma) \geq 1 -\frac{1}{k^2}$

$so, \mu = 150, \sigma = 20$

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x - N(150, 20^2)

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check

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8 0

3 years ago

$3 is what percent of $4?

ozzi

Answer:

The answer is 3/4 = 75%

Step-by-step explanation:

3/4 = 75%

It is: 3/4 = 75%

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3 years ago

89 m<br> 80 m<br> What is the length of the missing leg

sergiy2304 [10]

Answer:

119.67

Step-by-step explanation:

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3 years ago

Fourteen less than three fourths of a number is negative eight. Find the number

Lapatulllka [165]

The word "is" in this kind of problem typically means "=", so we know that something =-8. Since we're finding the number, we should start with the closest thing in the phrase given to that number. In this case, it's 3/4x. Finally, since we have the "14 less than", we need to add that in. Your answer is:

3/4x-14=-8. Now we can just solve!
+14 +14

3/4x=6.
*4/3 *4/3

x=8.
<em>
</em>
<em><u>Don't forget to rate this answer the </u><u>Brainliest</u><u>!</u></em>

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3 years ago