All categories

3 years ago

The circumference of a pool is 47 feet. Which formula can you use if you know that C =2 pie r

Mathematics

1 answer:

Slav-nsk [51]3 years ago

4 0

Answer:

We use formula, circumference= $2\pi r$ to get r= 7.48

Step-by-step explanation:

Here is the complete question: The circumference of a pool is 47 feet. Which formula can you use to find Radius (r), if you know that C =2πr.

Given: Circumference= 47 feet.

We will use formula of circumference to find radius (r) as given.

Circumference = $2\pi r$

⇒ $47\ feet= 2\times 3.14\times r$ (∵ we know π=3.14)

Cross multiplying both side to get r.

⇒ r= $\frac{37}{2\times 3.14} = 7.48$

∴ radius (r)= 7.48

∴ We will use circumference formula $2\pi r$ to find Radius (r).

You might be interested in

Need help!

siniylev [52]

Correct Inputs :-

In ΔABC right angled at A, D and E are points on BC, C such that BD = CD and AD ⊥ BC

$\underline{\underline{\large\bf{Solution:-}}}\\$

$\longrightarrow$ Let us know about definition of altitude first. The altitude of a triangle is the perpendicular line segment drawn from the vertex to the opposite side of the triangle.

$\leadsto$ Median is the line segment from a vertex to the midpoint of the opposite side.

Let us Check all options one by one

CD is line segment which starts from vertex C but don't falls on opposite side AB thus it is not an altitude.❌

BA is line segment which starts from vertex B and falls perpendicularly on opposite sides AC and is thus an altitude.✔️

AD is line segment which starts from vertex A and falls perpendicularly on opposite side BC and is thus an altitude.✔️

AE is a line segment which starts from vertex A but doesn't falls perpendicularly on opposite side BC and is thus not an altitude.❌

AD falls on BC with D as mid point because BD = CD and is thus a median. ✔️

8 0

1 year ago

Which equation is true when x = 1/2?

jeka94

Answer:

Explanation:

6/ 1/2 = 6*2, 6*2 not equal to 3

half of 8 is 4, not 16

1/2+2 = 2 1/2

10/ 1/2 = 10*2 = 20

8 0

2 years ago

Read 2 more answers

Jim is building a model of a square pyramid for a class project. The side length of the square base is 20 inches and the slant h

Brums [2.3K]

Answer:

$SA = 920 inches^{2}$

Step-by-step explanation:

Given Data:

Slant height of square pyramid = l = 13 inches

Base edge of square pyramid = s = 20 inches

To Find Out:

Surface area of square pyramid = SA = ?

Formula:

$SA = s^{2} + 2 * s * l$

Solution:

$SA = s^{2} + 2 * s * l$

$SA = 20^{2} + 2 * 20 * 13$

$SA = 400 + 520$

$SA = 920 inches^{2}$

3 0

2 years ago

The bakers at Healthy Bakery can make 260 bagels in 10 hours. How many bagels can they bake in 24 hours? What was that rate per

kykrilka [37]

260 bagels in 10 hrs.....260/10 = 26 bagels per hr <== unit rate

if they can bake 26 bagels per hr.....in 24 hrs, they can bake (24 * 26) =
624 bagels

6 0

3 years ago

Read 2 more answers

Solve the inequality 13×-4 < 12x-1

Murrr4er [49]

Answer:

x <3

Step-by-step explanation:

13x-4 < 12x-1

Subtract 12x from each side

13x-12x-4 < 12x-12x-1

x-4 <-1

Add 4 to each side

x-4+4<-1+4

x <3

7 0

2 years ago