3 years ago

Which solid has a volume that is 3 times the volume of a cone with the same base and height?

Mathematics

1 answer:

miss Akunina [59]3 years ago

7 0

A cylinder...

Vcylinder=hπr^2

Vcone=(hπr^2)/3

3*Vcone=Vcylinder

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Find the area of the shaded region. Round the the nearest tenth.

Brums [2.3K]

Answer:

226.084 sq.m.

Step-by-step explanation:

Radius of circle = 18.6 cm

Area of sector = $\frac{\theta}{360^{\circ} }\pi r^2$

Area of sector = $\frac{123}{360} \times 3.14 \times (18.6)^2$

Area of sector = $371.157 m^2$

Area of triangle = $\frac{1}{2} \times a \times b \times Sin x$

a = OA = radius = 18.6 cm

b = OB = radius = 18.6 cm

x =123 °

Substitute the values in the formula

Area of triangle = $\frac{1}{2} \times 18.6 \times 18.6 \times Sin 123$

Area of triangle = $145.073 m^2$

So, Area of shaded region = Area of sector - Area of triangle

= $371.157 m^2-145.073 m^2$

= $226.084 m^2$

Hence the area of the shaded region is 226.084 sq.m.

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4 years ago

Which place value first determines which of the numbers 35.1447 or 35.1457 is the larger number?

lianna [129]

Answer:

thousandths

Step-by-step explanation:

It is because one of the numbers is lower then the other so in this case 35.1457 is the larger number.

5 0

2 years ago

If a semi truck's trailer is 40 feet long, 10 feet wide, and has a height of 8 feet, what is its volume?

Temka [501]

First multiply 40 and 10 to get 400. Then multiply 400 by 8 to get 3,200.

Your answer would be: 3,200

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3 years ago

Enter the value that will complete this expression for converting 72 inches to yards

s344n2d4d5 [400]

Answer:

the answer is 12 inches

Step-by-step explanation:

there is 1 foot per 12 inches

12 inches make a foot

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3 years ago

(57 – 42) X-3 – 21<br><br> Help me out please

SpyIntel [72]

Answer:

1065

Step-by-step explanation:

57-42×-3-21

7 0

4 years ago