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2 years ago

Can someone please solve this. I got 81

Mathematics

1 answer:

aksik [14]2 years ago

6 0

To solve:

Find the volume of the pyramid first:
Base=9
Height=3
Volume=1/2(3)(9)=13.5

Then the volume of the rectangular prism:
Base=9
Height=16
Volume=144

Add the volumes of the two shapes together:
144+13.5=157.5

Answer: 157.5 ft^3

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2 years ago

I need some help with graphing again.

Rashid [163]

To find the x intercepts, we need to put the standard form equation into factored form.

Which two numbers multiply to -8 and add to -2?

$-4*2=-8$

$-4+2=-2$

So the factored form is

$(x-4)(x+2)$

That means the x intercepts are at $x=4,-2$

So now we have the x intercepts.

To find the vertex, we need to convert the standard form equation into vertex form.

The formula of vertex form is $y=a(x-h)^2+k$

Since the a value in the standard form equation is 1, the a value in vertex form is also one.

The h value can be found using the formula $h=\frac{-b}{2a}$

Which comes out to $\frac{2}{2}$ or 1.

To find the k value, we can just plug in what we got for h back into the equation.

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This also means the axis of symmetry is $x=-1$

Finally, to find the y intercept, we plug in 0 for x and solve.

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2 years ago

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Nimfa-mama [501]

Answer:

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Step-by-step explanation:

This equation cannot be simplified further.

Hope this helped! :)

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1 year ago

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2 years ago

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Zolol [24]

Answer:

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Step-by-step explanation:

The first quartile can best described as the median of the lower half of a data set ordered from least to greatest.

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