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ddd [48]
3 years ago
15

Find the area of the shaded sector. Leave your answer in terms of π.

Mathematics
2 answers:
bearhunter [10]3 years ago
8 0

Answer:

d=10m

r=10/2=5m

The Area is:

(πr^{2}) /2

(π5^2) / 2

=25π/2

=12.5π

iogann1982 [59]3 years ago
3 0

Answer:

Step-by-step explanation:

radius is 5m

Area of a sector is: pi * r^2 * angle/360

Area = 25/2 * pi

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The sides of a rectangle have length x+ 2 and width x -5. Which equation describes the area, A, of the rectangle in terms of x?​
Yakvenalex [24]

Answer:

The area in factored form is A=(x+2)(x-5).

The area in standard form is A=x^2-3x-10.

Step-by-step explanation:

The area of a rectangle is length times width.

So the area here is (x+2)(x-5).

They are probably not looking for A=(x+2)(x-5) because it requires too little work.

They probably want A in standard form instead of factored form.

Let's use foil:

First x(x)=x^2

Outer: x(-5)=-5x

Inner: 2(x)=2x

Last: 2(-5)=-10

---------------------Adding together:  x^2-3x-10.

The area in factored form is A=(x+2)(x-5).

The area in standard form is A=x^2-3x-10.

4 0
3 years ago
How many gallons equal 26 liters
Serjik [45]

Answer:

6.8 gallions i believe. im not quite sure

8 0
3 years ago
Last week, Robert's Diner sold 19 milkshakes with whipped cream on top and 19 milkshakes without whipped cream. What percentage
bagirrra123 [75]

Answer:

50 percentage

Step-by-step explanation:

19+19=38

he had 19 whipped cream

cuz that's half 38

4 0
3 years ago
The blades of a windmill turn on an axis that is 40 feet from the ground. The blades are 15 feet long and complete 3 rotations e
astraxan [27]

Answer:

a is the _amplitude_(Length of the blades)_

The vertical shift, k, is the _Mill shaft height_

a = 15\ ft\\\\k = 40\ ft

y = 15sin(\frac{\pi}{10}t) + 40

Step-by-step explanation:

In this problem the amplitude of the sinusoidal function is given by the length of the blades.

a = 15\ ft

The mill is 40 feet above the ground, therefore the function must be displaced 40 units up on the y axis. So:

k = 40\ ft

We know that the blades have an angular velocity w = 3 rotations per minute.

One rotation = 2\pi

1 minute = 60 sec.

So:

w = \frac{3(2\pi)}{60}\ rad/s

w = \frac{\pi}{10}\ rad/s

Finally:

a is the _amplitude_(Length of the blades)_

The vertical shift, k, is the _Mill shaft height_

a = 15\ ft\\\\k = 40\ ft

y = 15sin(\frac{\pi}{10}t) + 40

3 0
3 years ago
Read 2 more answers
If r=9 and 4r+3s=75, what is the value of s?
Nikitich [7]
4(9) + 3s = 75
36 + 3s = 75
3s = 39
s = 13
5 0
3 years ago
Read 2 more answers
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