3 years ago

HELP ME!!! THIS IS THE LAST QUESTION ON MY HOMEWORK

Mathematics

1 answer:

Furkat [3]3 years ago

3 0

I hope this helped. You just needed to divide it by 2

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If an orange traffic cone has a diameter of 10 in. and a height of 28 in. what is the volume of the cone?

e-lub [12.9K]

Answer:

$\large\boxed{V=\dfrac{700\pi}{3}\ in^3\approx732.67\ in^3}$

Step-by-step explanation:

The formula of a volume of a cone:

$V=\dfrac{1}{3}\pi r^2H$

r - radius

H - height

We have the diameter 2r = 10in → r = 5in, and the height H = 28in.

Substitute:

$V=\dfrac{1}{3}\pi(5^2)(28)=\dfrac{1}{3}\pi(25)(28)=\dfrac{700\pi}{3}\ in^3$

$\pi\approx3.14\to V\approx\dfrac{(700)(3.14)}{3}\approx732.67\ in^3$

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4 years ago

Solve for x:2x^2-5x-3=0

skad [1K]

Answer:

The value of x = 3 or -1/2

Step-by-step explanation:

2x²-5x-3=0

=> 2x² - 6x + x - 3 =0

=> 2x ( x - 3) + 1 ( x -3) =0

=> (2x+1) ( x-3) =0

x = 3 or x = -1/2

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2 years ago

You have a total of 21 pens and pencils on your desk. You have 3 more pens than pencils. Write a system linear equations that re

labwork [276]

Answer:

x + y = 21x - y = 3

Step-by-step explanation:

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3 years ago

If a recipe calls for one half lb of chicken per person and you bought the chicken in kilograms, how much chicken is needed for

nirvana33 [79]

Answer:

chicken per 3 people ≅ 0.681kg.

Step-by-step explanation:

You have half a pound of chicken per person (1/2 lb / p) and since there are 3 people then 3 * (1/2 lb / p) will be needed 1.5 lb for every 3 people , but this amount must be in kilograms, so :

$1.5lb*\frac{0.454kg}{lb}$ ≅0.681kg.

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3 years ago

Find the two numbers. X + 3x - 7 = 61

bazaltina [42]

Answer:

x= 17

Step-by-step explanation:

combine like terms

4x-7=61

4x=68

x=17

7 0

4 years ago