3 years ago

Calculate the length of the circumference of a circle with radius of 2.8cm

Mathematics

2 answers:

kykrilka [37]3 years ago

6 0

Hello. D= 2×r D=2×2,8 D=5,6cm. Circumference= $\pi$ × D ; C= 3,14×5,6 C=17,584cm. I hope to have helped you.

EastWind [94]3 years ago

5 0

(let pi be 22/7)
2 x 2.8 x 22/7 
44 x 0.4 
Answer 17.6cm

You might be interested in

3 times the sum of 1/3 of a number and 8 is 11

photoshop1234 [79]

Algebraically, that would be expressed as:

$3(\frac{1}{3}n +8) = 11$

7 0

3 years ago

How do you turn four and six hundredths into a decimal

Ivahew [28]

it would be 4.06 because 6/100 is 0.06 so 4.06 is your answer.

7 0

4 years ago

A bag contains 70 pencils out of which 15 are green and 30 blue.(i)How many pencils of other colours. are in the bag?(ii)A penci

Bas_tet [7]

Answer:

i) 25

ii) 30:70; 30 out of 70 pencils will be blue.

Step-by-step explanation:

i) 70 - (15+30)= 25 other colors in the bag.

ii) 30:70

4 0

4 years ago

The inverse of an exponential function is the logarithmic function. True or False?

patriot [66]

For one-to-one functions, the inverse of an exponential function is a logarithmic function and the inverse of a logarithmic function is an exponential function.
For example:
$f(x)=e^{x}$
$f^{-1} (x)=ln\ x$

$f(x)=ln\ x$
$f^{-1} x=e^{x}$

5 0

3 years ago

Carmen and Erin collect cans of food for a food drive. Carmen collects 5 times as many cans of food as Erin. Together, they coll

VashaNatasha [74]

Correct answer is A.

6 0

2 years ago