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OverLord2011 [107]
3 years ago
13

Question 1

Mathematics
1 answer:
allochka39001 [22]3 years ago
5 0

Answer:

Step-by-step explanation:

Perimeter of quarter circle = r + r + \frac{1}{4}*2*\pi *r

            = 10 + 10 + \frac{1}{4}*2*3.14*10\\\\= 10 + 10 +  3.14*5\\\\\\= 10 + 10 + 15.70\\\\= 35.70 cm

2) d = 2*10 = 20 cm

Perimeter of semicircle = diameter + (1/2) * circumference of circle

                         = 20 +  \frac{1}{2}* 2*\pi *r\\\\= 20 + \frac{1}{2}*2*3.14*10\\\\= 20 + 3.14*10\\\\= 20 + 31.4\\\\= 51.40 cm

3) Perimeter of three-quarter =  r + r + (3/4)* circumference of circle

          = 10 + 10 + \frac{3}{4}*2*\pi *r\\\\= 10 + 10 + \frac{3}{4} * 2 * 3.14 * 10\\\\= 10 + 10 + 3 * 3.14 * 5\\\\= 10 + 10 + 47.1\\\\= 67.1 cm

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4x+10-4(-4x+5) some one help I’m a freshmen
Umnica [9.8K]

Answer:

-12x - 10 or -2(6x +5)

Step-by-step explanation:

4x + 10 - 4(-4x + 5)

first, distribute the -4 among the parentheses

4x + 10 - 16x - 20

combine like terms

-12x - 10

if they want you to take it further, take out a -2

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4 0
3 years ago
What is the measure of EG?
IrinaVladis [17]
The first thing you should know in this case is that a circumference has a total measure in 360 degrees.
 We have then that the formula to find EG in this case is:
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 We cleared EG:
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 We substitute the values:
 EG = 360-83-66
 EG = 211
 Answer
 EG = 211 degrees.
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3 years ago
Last month, a store sold 110 video games. This month, the store sold 77 video games. Find the percent decrease. Round the neares
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Answer:

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7 0
3 years ago
The ratio of tickets sold to see the incredible musical wicked to tickets sold to see Cats is 11 to 7 if there were 2700 total t
tia_tia [17]
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Then solve for one of them in the first equation

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Then put this value for c into the 2nd equation

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Now cross multiply the numerator by denominator of both numerator and denominator pairs

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Now solve for w

7w = 26700 - 11w

Add +11w to both sides

18w = 29700

Now divide by 18 on both sides

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You can also check because 7 / 11 = 1050 / 1650



8 0
3 years ago
A rectangular sandbox has a width of 5 feet.The sandbox is 5 times as long as it is wide. What is the perimeter of the sandbox?
AveGali [126]
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8 0
3 years ago
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