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2 years ago

What’s the vertex of f(x)=(x+5)^2

Mathematics

1 answer:

arlik [135]2 years ago

6 0

Answer: (-5, 0)

Step-by-step explanation: The equation is already in completing the square form, a(x-h)^2 + k so you have both the x and y values for the vertex. Since there is no k here, the y value is 0.

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LAST ONE! PLEASE HELP! WILL MARK BRAINLIEST!

garri49 [273]

Answer:

Part A) the direct variation equation that relates x and y is:

$y= -5x$

Part B) value of y = 75

Step-by-step explanation:

Part A)

We are given that y varies directly with x, and y=10 when x=-2 what direct variation equation relates x and y?

If x and y are directly related then:

y ∝ x or y=kx

where k is constant of proportionality.

Now, finding k:

y=10 and x=-2

$y=k\,\,x\\10=k*-2\\k=10/-2\\k=-5$

So, value of k = -5

So, the direct variation equation that relates x and y is:

$y= -5x$

Part B)

What is the value of y when x = -15

the equation is:

$y= -5x$

Putting x = -15

$y=-5x\\y=-5(-15)\\y=75$

So, value of y = 75

Keywords: Direct Variation

Learn more about Direct Variation at:

#learnwithBrainly

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3 years ago

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777dan777 [17]

Answer:

Step-by-step explanation:

(11 + 4) / 3 * sqrt(64) =

= 15/3 * 8

= 5 * 8

= 40

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Step-by-step explanation:

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Divide and round to the nearest hundredths place. 2.75 ÷ 6

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2.75 ÷ 6
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That is just multiply the number of choices for each
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