3 years ago

Calculate the length of the circumference of a circle with a diameter of 4cm

Mathematics

1 answer:

MakcuM [25]3 years ago

6 0

Length of circumference is 2πr
2 π r and r is equal to 2 cm
I.e 12.5 cm

You might be interested in

I need the x intercepts for (x+3)(x + 7) = 0

Scrat [10]

Answer:

-3, -7

Step-by-step explanation:

either x + 3 = 0 --> x = -3

or x + 7 = 0 --> x = -7

3 0

2 years ago

Read 2 more answers

Will Mark Brainlest Help pls

vampirchik [111]

Answer:

x=2,y=2

Step-by-step explanation:

3y-1 = 5

or, 3y = 5+1

or, y = 6/3

y = 2

2x+1 = 3y-1

or, 2x = 3×2-1-1

or, 2x = 4

or, x = 2

4 0

3 years ago

Read 2 more answers

Lizzy had test scores of:72,94,108,60 What is the range of her test scores

mr Goodwill [35]

Answer:

range of the test scores is 48

Step-by-step explanation:

60,72,94,108

108- 60=48

4 0

3 years ago

Read 2 more answers

6x-4y=-14 -3x-3y=12 with the elimination method

Vanyuwa [196]

6x-4y=-14
2(-3x-3y=12)

6x-4y=-14
-6x-6y=24

-10y=10
Divide both sides by 10
-1y=1 divide by -1
y=-1

6x-4(-1)=-14
6x+4=-14
-4 -4
6x=-18
Divide both sides by 6
x=-3

8 0

3 years ago

0.2^x= 25 Solve to find x Show steps

liq [111]

$0.2=\frac{2}{10}=\frac{1}{5}=5^{-1}\ \ \ |used\ a^{-1}=\frac{1}{a}\ for\ a\neq0\\\\25=5^2\\\\therefore\\\\0.2^x=25\to(5^{-1})^x=5^2\ \ \ |use\ (a^n)^m=a^{n\cdot m}\\\\5^{-1(x)}=5^2\\\\5^{-x}=5^2\iff-x=2\to\boxed{x=-2}\\\\check:\\\\0.2^x=0.2^{-2}=\left(\frac{1}{5}\right)^{-2}=5^2=25\ O.K.\ :)$

8 0

3 years ago

Read 2 more answers