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3 years ago

Help please show work

Mathematics

1 answer:

Olenka [21]3 years ago

5 0

Answer:

67.5 ft^2

Step-by-step explanation:

First find the area of the circle.

A = pi r^2

A = pi (8)^2

A = 64pi

There are 360 degrees in a circle

The shaded area has 121 degrees

The fraction is 121/360

The fraction shaded is 121/360

The fraction of the circle is the same as the area

121/360 A = 121/360 * 64 pi

area shaded = 67.54488889

To the nearest tenth

area shaded = 67.5

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(24xy^3-16x^2y^2+32x^2y)/8xy

Ahat [919]

(24xy^3-16x^2y^2+32x^2y)/8xy

(‌24xy^3−16x^2y^2+32x^2y8‌x)(y) =−2x^3y^3+3x^2y^4+4x^3y^2

4 0

3 years ago

four spheres of radius 6cm just fit inside a cylinder calculate the volume inside the cylinder that is empty leave your answers

Alekssandra [29.7K]

Answer:

The volume inside the cylinder is $1152\pi\ cm^3$ .

Step-by-step explanation:

Given : Four spheres of radius 6 cm just fit inside a cylinder.

To find : Calculate the volume inside the cylinder that is empty ?

Solution :

The volume of the cylinder is volume of 4 spheres.

The volume of sphere is $V=\frac{4}{3}\pi r^3$

The radius is 6 cm.

The volume of four spheres is

$V=4\times \frac{4}{3}\times \pi\times (6)^3$

$V=1152\pi\ cm^3$

Therefore, the volume inside the cylinder is $1152\pi\ cm^3$ .

8 0

2 years ago

Read 2 more answers

A salesman needed to sell a boat. At first, he priced it at $4,200. After a week, he reduced the price by 12%. What is the price

tigry1 [53]

10% of 4200 is 420
2% of 4200 is 84
420+84 is 504
4200-504=3696
Hope this helps

4 0

3 years ago

What is the solution to this system of equations?

ololo11 [35]

Answer:

(1,5) is the answer

6 0

2 years ago

If (x+1,10)=(4,2y) then find the value of x & y

lawyer [7]

Answer:

Step-by-step explanation:

<h3>Given, </h3>

(x+1, 10) = (4, 2y)

First x coordinate, 

x + 1 = 4

=> x = 4 - 1

=> x = 3 (Ans) (i)

Second y coordinate, 

10 = 2y

$= > y = \frac{10}{2}$

=> y = 5 (Ans) (ii)

3 0

3 years ago