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2 years ago

15

HARD QUADRATICS!!!! A quadratic of the form $-2x^2 + bx + c$ has roots of $x = 3 + \sqrt{5}$ and $x = 3 - \sqrt{5}.$ The graph o

f $y = -2x^2 + bx + c$ is a parabola. Find the vertex of this parabola.

1 answer:

iren2701 [21]2 years ago

5 0

Answer:

hold up this will take a min to work out

Step-by-step explanation:

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The volume, V, of a cylinder is equal to this area base, B, times it’s height h. The diameter of a cylinder is 18 feet and its h

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what was the importance of the meetings of the second continental Congress quizlet answers

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2 years ago

Show √7 , √5 on a number line. <br><br>please hurry up my cissy and oppa<br>

tankabanditka [31]

Answer:

Draw the number line like in the picture.

Step-by-step explanation:

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2 years ago

7 years ago father was 7 times as old as his son was. three years hence, he will be three times as old as his son find their pre

EastWind [94]

Answer:

son = 10 , father = 40

Step-by-step explanation:

Let Five years ago the age of son be x years and age of father be 7x years

Present age of son =x+5

Present age of father =7x+5

5 years later their age will (x+10) and (7x+10)

∴7x+10=3(x+10)

7x−3x=20

4x=20

x=5

So, the present age of son=x+5=5+5=10years

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hope it helps you

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2 years ago

If y = -6cosx, what is the amplitude?

aniked [119]

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3 years ago

4. A classmate is having difficulty finding the measures of <BGE and <BDG in the diagram on the right. What mathematical a

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so
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we know that
The measure of the external angle is the semi-difference of the arcs that it covers.
so
angle BDG=(1/2)*[arc GEB-arc GB]

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3 years ago