All categories

3 years ago

The ratio of the radii of two circles is 4:9. What is the ratio of their circumferences?

Mathematics

2 answers:

sasho [114]3 years ago

8 0

4/9; ratio is still the same
20 charrrrrrrrrrrr

fenix001 [56]3 years ago

7 0

It will be 4:9 as well.
Circumference = 2πr,
r1 : r2 = 4:9 so this means that 2πr1 : 2πr2 = 4:9, because 2π = constant

You might be interested in

Find the supplement of an angle that measures 89º.<br> OA) 61°<br> B) 91°<br> C) 1°<br> D) 31°

ElenaW [278]

Answer:

B. 91 degrees

Step-by-step explanation:

supplementary angles = 180 degrees, so 180-89 = 91

3 0

3 years ago

Read 2 more answers

A regular hexagon has sides of 3 feet. What is the area of the hexagon?

frosja888 [35]

Answer:

$13.5\sqrt{3}\:\text{ft}^{2}$

Step-by-step explanation:

Given: The side of a regular hexagon is 3 feet.

To find: Area of the hexagon

Solution:

It is given that the side of a regular hexagon is 3 feet.

We know that the area of a regular hexagon whose side is a units is $\frac{3\sqrt{3} }{2} a^{2}$

Here, the side is 3 feet

So, area of the regular hexagon

$=\frac{3\sqrt{3} }{2} \times3^{2}$

$=\frac{3\sqrt{3} }{2} \times9$

$=\frac{27\sqrt{3} }{2}$

$=13.5\sqrt{3}\:\text{ft}^{2}$

Hence, area of the regular hexagon is $13.5\sqrt{3}\:\text{ft}^{2}$

6 0

3 years ago

How do I graph y=5/3x

babymother [125]

Just do the slope of 5/3×

6 0

3 years ago

What is the height of a container if the volume is 56.52 in.³ in the radius is 1.5 inches

iren2701 [21]

Djdkcjkjoeeefifhefjiej

8 0

3 years ago

Hello can you please help me posted picture of question

irina [24]

We are to form the combination of 6 objects taken 2 at a time. This can be expressed as 6C2

$6C2= \frac{6!}{2!*4!} \\ \\ 
= \frac{6*5}{2} \\ \\ 
=15$

This means, there can be 15 different combinations of 2 members that can sit in the front row.

So, the answer to this question is option A

6 0

3 years ago

Read 2 more answers