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2 years ago

Find the height of the pyramid. square base with edge 15 feet and volume 1,350

Mathematics

1 answer:

kirill115 [55]2 years ago

8 0

Answer:

Step-by-step explanation:

The volume (V) of a square based pyramid is calculated as

V = $\frac{1}{3}$ Ah ( A is the area of the base and h is the height )

Here V = 1350, thus

$\frac{1}{3}$ × 15²h = 1350 ( multiply both sides by 3 to clear the fraction )

225h = 4050 ( divide both sides by 225 )

h = 18 ft → c

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The volume of this rectangular prism is 4x^3 (4x cubed). What does the coefficient 4 mean in terms of the problem?

yKpoI14uk [10]

It means that has four of those cubes inside one prism... it's hard to explain but x^3 is ONE CUBE not prism, YOU HAVE FOUR of them, hope this helpz

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2 years ago

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Please help asap will mark brainliest

steposvetlana [31]

The answer is -6x^2 + 7x, or answer choice A.

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3 years ago

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Which equation could be solved using this application of the quadratic formula? A. -2x2 â’ 8 = 10x â’ 3 B. 3x2 â’ 8x â’ 10 = 4 C

hodyreva [135]

The given question can be solve using quadratic formula.

The correct option is (c) $3x^2 +8x -10=-8$ .

Given:

The given equation is,

$x=\dfrac{-8\pm\sqrt{8^2-4(3)(-1)}} {2(3)}$ ---------------------------(1)

Write the general quadratic equation.

$ax^2 + bx +c=0$

Write the quadratic formula.

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Compare equation (1) and (2).

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Substitute the value of $a$ , $b$ and $c$ in general quadratic.

$3x^2 +8x -2=0$

Subtract $8$ from each side of above equation.

$3x^2 +8x -2 -8=0-8\\3x^2 +8x -10=-8$

Thus, the correct option is (c) $3x^2 +8x -10=-8$ .

Learn more about quadratic equation here:

brainly.com/question/17177510

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2 years ago

(Giving Branliest)

bekas [8.4K]

Hey there! I'm happy to help!

28(5280)=147840 feet per hour.

There are 60 minutes in an hour. To find out how many feet Bolt runs in a second we divide by 60.

147840/60=2464

And we divide by sixty again to get to seconds.

2464/60=41 1/15 feet per second.

Have a wonderful day! :D

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3 years ago

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If 5 out of 30 students scored an A on a quiz.what percent did not get an A on the quiz?Round to the nearest whole percent.

Inessa [10]

Answer:

83 %

Step-by-step explanation:

If 5 out of 30 got an A, that means that

30 -5 = 25

25 out of 30 did not get and A

25/30 = .8333333 = 83.33333 %

Rounding to the nearest whole percent

83 %

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1 year ago