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4 years ago

Andrew has a flying disc with a radius of 10 centimeters. What is the circumference of the disc?

Mathematics

2 answers:

jasenka [17]4 years ago

7 0

10x2= 20

20x3.14= 62.8

the circumference of the disc is 62.8

alina1380 [7]4 years ago

3 0

The formula for circumference is C=2πr. π is equal to 3.14. So 3.14 times 2 is 6.28. Then R represents the radius (which is 10) so you would multiply 6.28 times 10 which is = 62.80 SO THE CIRCUMFERENCE IS 62.80 :)

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The function v(r) 4/3 pie r to the 3rd = can be used to find the volume of air inside a basketball given its radius. What does V

umka21 [38]

Answer:

the volume of the basketball when the radius is r

Step-by-step explanation:

V(r) is a function name V and argument list (r). Often the letter of the function name is a reminder of what the function computes. Here, V is chosen as the name because it computes Volume. The function uses r (for radius) as its independent variable. That is why r is listed in parentheses next to the function name.

So, V(r) represents a function that computes the volume of a sphere with radius r.

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3 years ago

Help please...

stealth61 [152]

Answer:

1) 80% 2)25%

Step-by-step explanation:

1)80% of $2.50 = $4.50

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3 years ago

Write 235 using powers of 10

vaieri [72.5K]

Answer:

(10^2)*2, 10*3, 10/2

Step-by-step explanation:

Thats my best guess to your very vague question

8 0

3 years ago

Find each missing angle Please

-BARSIC- [3]

Answer:

m<1=61

m<2=40

m<3=60

m<4=80

m<5=100

Step-by-step explanation:

180/3=60

180/9=20

20x2=40

20x4=80

20x3=60

59+60=119

180-119=61

180-80=100

7 0

3 years ago

Person A can paint the neighbor's house 6 times as fast as Person B. The year A and B worked together it

uranmaximum [27]

Person A takes 2.3 days to paint the house working alone

Person B takes 13.8 days to paint the house working alone

Solution:

Let "x" be the number of days it takes person A to paint the house

Person A can paint the neighbor's house 6 times as fast as Person B

Therefore.

Number of days it takes person B to paint the house = 6x

Their rates of painting are added to get the rate working together

$\frac{\text{1 house}}{\text{x days}} + \frac{\text{1 house}}{\text{6x days}} = \frac{\text{1 house}}{\text{2 days}}$

$\frac{1}{x} + \frac{1}{6x} = \frac{1}{2}\\\\\frac{1 \times 6}{6x} + \frac{1}{6x} = \frac{1}{2}\\\\\frac{7}{6x} = \frac{1}{2}\\\\\ x = \frac{7}{3}= 2.3$

Thus person A takes 2.3 days to paint the house working alone

Person B = 2x = 6(2.3) = 13.8

Thus person B takes 13.8 days to paint the house working alone

3 0

3 years ago