2 years ago

Work out the circumference of this circle.

Mathematics

1 answer:

tigry1 [53]2 years ago

3 0

C=pid
Since d=9m and pi=3.142, C=3.142*9m=28.278
Rounded to 1 decimal point =28.3

You might be interested in

a solid sphere is cut into 3 equal wedges. the volume of each wedge is V=4/9π^3. solve the formula for r

algol13

$\\ \qquad\quad\sf{:}\dashrightarrow V=\dfrac{4}{9}πr^3$

It is one third of the solid. sphere

$\\ \qquad\quad\sf{:}\dashrightarrow V_{(Sphere)}$

$\\ \qquad\quad\sf{:}\dashrightarrow 3\left(\dfrac{4}{9}πr^3\right)$

$\\ \qquad\quad\sf{:}\dashrightarrow \dfrac{4}{3}\pi r^3$

Now

$\\ \qquad\quad\sf{:}\dashrightarrow \pi r^3=\dfrac{3V}{4}$

$\\ \qquad\quad\sf{:}\dashrightarrow r^3=\dfrac{3V}{4\pi}$

$\\ \qquad\quad\sf{:}\dashrightarrow r=\sqrt[3]{\dfrac{3V}{4\pi}}$

4 0

2 years ago

Read 2 more answers

What is a composite and prime number

Oxana [17]

Prime numbers are numbers that we can only divide by 1 and it self.
example- 2 can only be divided by 2 and 1

composite numbers are numbers we can divide by two or more numbers
example- 4 can be divided by 1,2 and 4.

5 0

2 years ago

(geometry) This zigzag crystal vase has a height of 12 inches. The cross sections parallel to the base are always rectangles tha

enot [183]

Answer:

A. 9

B. 7

Step-by-step explanation:

7 0

2 years ago

Need 19 plz don’t rlly understand but if u can help that would be amazing thanks <3

Neko [114]

Answer:

I got zero but I am not sure if that is right

Step-by-step explanation:

3 0

2 years ago

Use the slope formula to find the slope of the line passing through the given points.

irina1246 [14]

The slope is undefined because it is a vertical line on the x axis at 0. Its a straight line going up

3 0

2 years ago