3 years ago

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Mathematics

1 answer:

Margaret [11]3 years ago

3 0

Use long subtraction to evaluate.
$418.51

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A cone has a diameter of 6 cm and a height that is 3 times the diameter. Using 3.14 for pi, which of the following can be used t

Zinaida [17]

Option A: 1/3(3.14)(3cm)^2(18cm) is the correct answer

Step-by-step explanation:

Given

Diameter of Cone = d = 6 cm

Radius will be:

r = d/2 = 6/2 = 3 cm

Height of cone = h = 3d = 18 cm

The volume of cone is given by:

$V = \frac{1}{3}\pi r^2h$

Putting the values

$V = \frac{1}{3} (3.14)(3)^2(18)$

Hence,

Option A: 1/3(3.14)(3cm)^2(18cm) is the correct answer

Keywords: Volume, cone

Learn more about volume at:

#LearnwithBrainly

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3 years ago

What are the characteristics of x^2-x+1

SSSSS [86.1K]

It is a quadratic equation, if it is equal to zero. It is not factor able.

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3 years ago

Simple true and false question

Nesterboy [21]

Answer:

true

Step-by-step explanation:

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Pinto is planning to paint the walls of a bedroom that is 20 feet long, 15 feet wide, and 8 feet high. Is he too has 1 gallon of

eimsori [14]

Answer:

0.4 gallons

Step-by-step explanation:

Length of a bedroom= 20 feet

Breadth of a bedroom= 15 feet

Height of a bedroom= 8 feet

Area of walls of a bedroom= 2(l+b)×h

Area of walls of a bedroom=2(20+15)×8 $ft^{2}$

Area of walls of a bedroom= 2× 35×8 $ft^{2}$

Area of walls of a bedroom=560 $ft^{2}$

Amount of paint in 1 gallon = 400 $ft^{2}$

Number of gallons required= $\frac{560}{400}$

Number of gallons required= 1.4 gallons

Hence, 0.4 extra gallons required

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the price of a shirt was $16. there is a price increase of 4%. which of the following expression gives the new price of the shir

FrozenT [24]

Answer:

$16.64

Step-by-step explanation:

$16 + 4% = $16.64

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3 years ago