1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
daser333 [38]
3 years ago
8

The circumference of a circle is 11 pi ft. find its diameter, in feet​

Mathematics
1 answer:
nexus9112 [7]3 years ago
7 0

Answer:

11 feet

Step-by-step explanation:

Use the circumference formula, C = \pid

Plug in 11\pi as C, and solve for d:

C = \pid

11\pi = \pid

11 = d

So, the diameter is 11 feet

You might be interested in
Consider the curve defined by the equation y=6x2+14x. Set up an integral that represents the length of curve from the point (−2,
torisob [31]

Answer:

32.66 units

Step-by-step explanation:

We are given that

y=6x^2+14x

Point A=(-2,-4) and point B=(1,20)

Differentiate w.r. t x

\frac{dy}{dx}=12x+14

We know that length of curve

s=\int_{a}^{b}\sqrt{1+(\frac{dy}{dx})^2}dx

We have a=-2 and b=1

Using the formula

Length of curve=s=\int_{-2}^{1}\sqrt{1+(12x+14)^2}dx

Using substitution method

Substitute t=12x+14

Differentiate w.r t. x

dt=12dx

dx=\frac{1}{12}dt

Length of curve=s=\frac{1}{12}\int_{-2}^{1}\sqrt{1+t^2}dt

We know that

\sqrt{x^2+a^2}dx=\frac{x\sqrt {x^2+a^2}}{2}+\frac{1}{2}\ln(x+\sqrt {x^2+a^2})+C

By using the formula

Length of curve=s=\frac{1}{12}[\frac{t}{2}\sqrt{1+t^2}+\frac{1}{2}ln(t+\sqrt{1+t^2})]^{1}_{-2}

Length of curve=s=\frac{1}{12}[\frac{12x+14}{2}\sqrt{1+(12x+14)^2}+\frac{1}{2}ln(12x+14+\sqrt{1+(12x+14)^2})]^{1}_{-2}

Length of curve=s=\frac{1}{12}(\frac{(12+14)\sqrt{1+(26)^2}}{2}+\frac{1}{2}ln(26+\sqrt{1+(26)^2})-\frac{12(-2)+14}{2}\sqrt{1+(-10)^2}-\frac{1}{2}ln(-10+\sqrt{1+(-10)^2})

Length of curve=s=\frac{1}{12}(13\sqrt{677}+\frac{1}{2}ln(26+\sqrt{677})+5\sqrt{101}-\frac{1}{2}ln(-10+\sqrt{101})

Length of curve=s=32.66

5 0
3 years ago
Which number line represents the solution set for the inequality {X24?
zhannawk [14.2K]

Answer:

A.) will be the correct answer to your problem

6 0
3 years ago
The scale on map is 1:500000
Arada [10]

Answer:

3,500 km

Step-by-step explanation:

Assuming that 1:500000 is meters you would have to convert to kilometers.

7 * 500000 / 1000 = 3500

5 0
3 years ago
Your family needs a set of 4 tires. which of the following deals would you prefer. explain. 1. Buy 3 get one free,
scZoUnD [109]
Number 1 and number 3 are the same because if you are purchasing three tires that is 75% off the tires you need and one of them you get free. the free one becomes the overall discount of 25% off. number 3 is the same, the one quarter represents 25% off of the purchase.
4 0
3 years ago
a certain triangle has a perimeter of 3067 mi. the shortest side measures 71 mi less than the middle side and the longest side m
UkoKoshka [18]

Answer:

The measure of the shortest side is 851 miles

Step-by-step explanation:

Let

x ----> the measure of the shortest side

y ---> the measure of the middle side

z ---> the measure of the longest side

we know that

The perimeter of triangle is equal to

P=x+y+z

P=3,067\ mi

so

3,067=x+y+z ----> equation A

the shortest side measures 71 mi less than the middle side

so

x=y-71 ----> equation B

the longest side measures 372 mi more the the middle side

so

z=y+372 ----> equation C

substitute equation B and equation C in equation A

3,067=(y-71)+y+(y+372)

solve for y

3,067=3y+301\\3y=2,766\\y=922

Find the value of x

x=y-71\\x=922-71\\x=851

therefore

The measure of the shortest side is 851 miles

6 0
3 years ago
Other questions:
  • How do you solve #5b = - 235#?
    14·1 answer
  • Complete the squares <br><br><br> 6+4x-x^2
    7·1 answer
  • Evaluate and simplify
    12·1 answer
  • A text font fits 12 characters per inch using the same font how many catchers can be expected per yard of text
    6·1 answer
  • Convert to a decimal:<br> 5⁄10 = <br><br> (Do not round. Enter all decimal digits.)
    10·2 answers
  • Which transformations will produce similar, but not congruent, figures?
    5·1 answer
  • Please answer this correctly
    8·2 answers
  • A factor that is common to all terms of an expression or to two or more expressions
    15·1 answer
  • 5<br> Write the ratio<br> 6<br> in another way.
    11·1 answer
  • A book sold 35,100 copies in its first month of release. Suppose this represents 8.8% of the number of copies sold to date. How
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!