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mr Goodwill [35]
3 years ago
7

Find the circumference and length of the darkened part of the arc. Leave answer in terms of pi

Mathematics
1 answer:
Allisa [31]3 years ago
6 0

Answer:

Circumference=16pi

Arc Length=8pi

Step-by-step explanation:

Circumference formula=2(pi)(r), or d(pi)

The arc is only half of that in this case, therefore you would only pi(r) or 1/2(d)(pi).

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A blanket is 4 feet wide. It is 3 times as long as it is wide. Find the perimeter and area of the blanket.
garri49 [273]

Answer:

P: 32

A: 48

Step-by-step explanation:

(4+(4*3))*2=32

4*(4*3)=48

3 0
3 years ago
What sum of money lent out at 12 percent p.a. simple would produce rupesh 9000 interest in 2 years​
natka813 [3]

Answer:

1380 = P x 12 x 2/100

138000 = 24P

Therefore P = 5750 Rs.

Step-by-step explanation:this  hope this help and have a great day or night!!! bye

3 0
3 years ago
A shop sells packs of black pens, packs of red pens and packs of green pens.
olchik [2.2K]

Answer:

85 pens  

Step-by-step explanation:

The computation of the number of green pens sold is shown below;

As the number of black pens, red pens, and green pans is 3:5:6

And, the ratio of sold of black pens, red pens, and green pans is 7:3:4

So, the ratio of pens in a number of pens is

= 3 × 7 : 5 × 3 : 4 × 6

= 21: 15 : 24

= 7: 5 : 8

And, the total of 212 pens are sold

So, the number of green pens sold is

= 8 × 212 ÷ (7 + 5 + 8)

= 85 pens  

4 0
3 years ago
I don’t get this :(
muminat
Ok so for the first one it’s super simple I’m gonna do it as less complicated so it can help you :)


So first we need to convert the mixed number to an improper fraction


1 4/5 = 9/5


Now we need to reduce the numbers greatest common divisor which is 3

3/5 x 6

Now multiply the numbers


Your answer is 18/5 I hoped this help



Now for the second one

this one is a little more complicated and I don’t know how to make it sound easier so I’m gonna tell you the answer which is 580/21


The last one is the same steps we did for the first one which is 27/20



I hoped this helped you it is a little difficult but you’ll get the hang of it :)

5 0
3 years ago
a source of laser light sends rays ab and ac toward two opposite walls of a hall. the light rays strike the walls at points b an
marissa [1.9K]
Let  AM be the distance between point A and the right wall and AN be the distance between A and the left wall.
Δ AMB is an isosceles right triangle and  Δ ANC is half of an equilateral triangle.
Length of AM = 30 m. Length of AN = 1/2 · 80 = 40 m.
The distance between the walls is:
30 m + 40 m = 70 m.
4 0
3 years ago
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