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3 years ago

6. Why is the x-coordinate of the vertexof a parabola the mean of the zeros ofthe function?

Mathematics

1 answer:

Leona [35]3 years ago

7 0

Answer:

<h3>The vertex of a parabola is the point where the parabola crosses its axis of symmetry.If the coefficient of the $x^{2}$ term is postive Step-by-step explanation:</h3>

U shape. the coffiecent of the $x^{2}$ term negative.

Parabola: $y=ax^{2} +bx+c\\y=a(x-h)x^{2} +k\\(h,k)$

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Would 3.24 be an integer?

alexgriva [62]

That’s a irrational number

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3 years ago

Jorge took 4 minutes to run 1/2 mile. How long will it take him to run 3 miles?

pychu [463]

Answer:

It will take him 24 minutes

Step-by-step explanation:

If it takes him 4 for minutes to run 1/2 mile, then it will most likely take him 8 minutes for 1 mile. Then you multiply 8 by 3, which gives you 24

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2 years ago

Which expression uses the greatest common factor and the distributive property to rewrite the sum 7 + 75

Lady_Fox [76]

Answer:

$75 + 45$ $= 15(3 + 5)$

Step-by-step explanation:

Given

$75 + 45$ <em>-- Corrected</em>

Required

Use the GCF to write it as a distributive property

First, we find the GCF of 75 and 45

$45 = 3 * 3 * 5$

$75 = 3 * 5 * 5$

The common factor is:

$GCF = 3 * 5$

$GCF = 15$

So, $75 + 45$ becomes

$75 + 45$ $= 15 * 3 + 15 * 5$

Factorize

$75 + 45$ $= 15(3 + 5)$

<em>Hence, the sum has been rewritten as </em> $15(3 + 5)$ <em></em>

5 0

3 years ago

Find the area of a semicircle.<br>a 4.7 yd

Anika [276]

Answer:

Step-by-step explanation:

Dont know if this helps but heres something.

A = πr²/2 = 1938.900992 * π [yd²] ≈ 4.7 [yd²]

Use this if you want to

https://www.omnicalculator.com/math/semicircle-area

4 0

3 years ago

Given the system of equations presented here:

Nata [24]

2x + 4y = 14
4x + y = 20......multiply by -4
----------------
2x + 4y = 14
-16x - 4y = -80 (result of multiplying by -4)
---------------add
-14x = -66....as u can see, ur y's cancel out

so ur answer is : 1st answer choice <==

** and just so u know, u could have multiplied the 1st equation by -2, and it would have cancelled out ur x's

6 0

3 years ago

6. Why is the x-coordinate of the vertexof a parabola the mean of the zeros ofthe function?​

6. Why is the x-coordinate of the vertexof a parabola the mean of the zeros ofthe function?