What is the circumference of a circle that has a radius of 10 centimeters? Round your answer to one decimal place. C = a0 cm

Answers

Answer 1
Answer:

Answer:  62.8 centimeters

Step-by-step explanation:

We know that the circumference of a circle is given by :_

\text{Circumference}=2\pi r, where r is the radius of the circle.

Given : The radius of the circle : r= 10 centimeters.

Then , the circumference of the circle is given by :-

\text{Circumference }=2(3.14)(10)\n\n\Rightarrow\ \text{Circumference }=62.8\ cm

Hence, the circumference of the circle = 62.8 centimeters

Answer 2
Answer: C=2*3.14*10=20*3.14=62.8cm

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The expression b/c=b/c is an example of a(n)?

A fair was attended by 834,009 people. Round the number to the nearest ten thousand.

Answers

A fair was attended by 834,009 people

Rounding up this number of people to nearest ten thousand.

9 has a 'ones' value

Going to the right from left:

Second last zero has a 'tens' value.

Third from last zero has a 'thousands' value

4 has 'ten thousands' value

Round up 4 and because it is less than five it converts to zero

This gives an answer of  830,000.


28.5 g of iron shot is added to a graduated cylinder containing 45.50 mL of water. the water level rises to the 49.10 mL mark. From this information, calculate the density of iron.

Answers

7.92 g/cm³ is the density of the iron sheet.

Density is calculated by the formula:

= Mass / Volume

The mass here is 28.5 g

The Volume is:

= Volume of water after iron shot added - Volume before shot added

= 49.10 - 45.50

= 3.6 mL

The units for density is g / cm³ so you need to convert the mL to cm³.

1 cm³ = 1 mL

3.6 mL is therefore 3.6 cm³.

Density is:

= 28.5 / 3.6

= 7.92 g / cm³

In conclusion, the density of the iron shot is 7.92 g /cm³.

Find out more at brainly.com/question/8287765.

Density=mass/volume.
1) we have to calculate the iron volume in liters.
iron volume=second level - first level=49.10 ml-45.50 ml=3.6 ml
3.6 ml=3.6 ml(1 liter / 1000 ml)=0.0036 liters 

2) we calculate the mass iron in kg.
28.5 g=28.5 g(1 kg /1000 g)=0.0285 kg.
2) we calculate the density of iron.
density=0.0285 kg / 0.0036 liters=7.92 kg/L

7.92 kg/l=7.92 kg/L(1000 g/1Kg)(1000 cm³/1 L)=7.92 g/cm³.

answer: From this information the Iron density is 7.92 Kg/L or  7.92 g/cm³.

Separate 185 into two parts so that one part is 31 more than the other part. Find each part.

Answers

9514 1404 393

Answer:

  108, 77

Step-by-step explanation:

Let x represent the larger part. Then ...

  x + (x -31) = 185

  2x = 216

  x = 108

  x -31 = 77

The two parts are 108 and 77.

What is the solution to4(2x– 3)= 2(3x+ 1)?


-5

1

7

10

Answers

4 (2x – 3)= 2( 3x + 1)
(4 (2x – 3)= 2( 3x + 1)) ÷ 2
2 (2x – 3) = (3x + 1)
4x - 6 = 3x +1
-3x       -3x
__________
x - 6 = 1
   +6  +6
______
x = 7

A bag contains 4 oranges, 3 grapefruits, and 8 tangerines. A piece of fruit is chosen from the bag at random. What is the probability that a grapefruit is NOT chosen?

Answers

What you’ll have to do is find the probability of the oranges and the tangerines. There is a total is 15 fruit. 12 of those are not grapefruit. You’ll then have to find the percentage of 12/15.


12 is divided by 15, then multiplied by 100. 

12 divided by 15 = 0.08

0.08 x 100 = 80

There is an 80% chance that a grapefruit will not be picked.

Answer:

80% converted into a fraction is 4/5

the grapefruit has a probability of not being chosen 4/5 times

Write an equation of the line that passes through the points (3,6) and (4,10) using function notation. A.) f(x) = 4x - 6

B.) f(x) = x + 4

C.) y = x + 4

D.) y = 4x - 6

Answers

Given:
(3,6) and (4,10)

a) f(x) = 4x - 6
f(3) = 4(3) - 6         f(4) = 4(4) - 6
f(3) = 12 - 6            f(4) = 16 - 6
f(3) = 6                    f(4) = 10

b) f(x) = x + 4
f(3) = 3 + 4             f(4) = 4 + 4
f(3) = 7                    f(4) = 8

c) y = x + 4
y = 3 + 4                y = 4 + 4
y = 7                      y = 8

d) y = 4x - 6
y = 4(3) - 6            y = 4(4) - 6
y = 12 - 6               y = 16 - 6
y = 6                       y = 10

Among the choices, choice A and D have the same value. However, the problem says functions notation. Choice A. is the function notation. A.) f(x) = 4x - 6