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
Kipish [7]
3 years ago
13

What is the circumference of a circle if the radius is 4?

Mathematics
2 answers:
inysia [295]3 years ago
6 0

Answer:

25.1cm

Step-by-step explanation:

since circumference =\pid and d=2r

c=\pi(2*4)

c=8\pi

c=25.132741229

c=25.1cm

artcher [175]3 years ago
6 0

Answer:

90.8

Step-by-step explanation:

cercumference=πD

r=2×D

<h2>C=2πr</h2><h2><u>c</u><u>=</u><u>2</u><u>×</u><u>π</u><u>×</u><u>4</u></h2><h3>π=22/7 or 3.14 so,</h3>

C=90.8

You might be interested in
A football game lasted 3.15 hours. how many seconds did the game last? if necessary, round your answer to the nearest tenth of a
Eva8 [605]
It would be 11340 seconds. 
Hope this helps!
6 0
3 years ago
Read 2 more answers
Two warning lights flash on the fences of Jurassic Park. One light flashes every 3 seconds. Another light flashes
Anni [7]

Answer:

5 times

Step-by-step explanation:

Demos

8 0
3 years ago
Read 2 more answers
Deborah has $56 in her bank account currently. She earns $8 per hour at her job at the local ice cream shop. Micah has $32 in hi
Scilla [17]
5 hours I did this on Plato
4 0
2 years ago
Evaluate the following limit:
Makovka662 [10]

If we evaluate the function at infinity, we can immediately see that:

        \large\displaystyle\text{$\begin{gathered}\sf \bf{\displaystyle L = \lim_{x \to \infty}{\frac{(x^2 + 1)^2 - 3x^2 + 3}{x^3 - 5}} = \frac{\infty}{\infty}} \end{gathered}$}

Therefore, we must perform an algebraic manipulation in order to get rid of the indeterminacy.

We can solve this limit in two ways.

<h3>Way 1:</h3>

By comparison of infinities:

We first expand the binomial squared, so we get

                         \large\displaystyle\text{$\begin{gathered}\sf \displaystyle L = \lim_{x \to \infty}{\frac{x^4 - x^2 + 4}{x^3 - 5}} = \infty \end{gathered}$}

Note that in the numerator we get x⁴ while in the denominator we get x³ as the highest degree terms. Therefore, the degree of the numerator is greater and the limit will be \infty. Recall that when the degree of the numerator is greater, then the limit is \infty if the terms of greater degree have the same sign.

<h3>Way 2</h3>

Dividing numerator and denominator by the term of highest degree:

                            \large\displaystyle\text{$\begin{gathered}\sf L  = \lim_{x \to \infty}\frac{x^{4}-x^{2} +4  }{x^{3}-5  }  \end{gathered}$}\\

                                \ \  = \lim_{x \to \infty\frac{\frac{x^{4}  }{x^{4} }-\frac{x^{2} }{x^{4}}+\frac{4}{x^{4} }    }{\frac{x^{3} }{x^{4}}-\frac{5}{x^{4}}   }  }

                                \large\displaystyle\text{$\begin{gathered}\sf \bf{=\lim_{x \to \infty}\frac{1-\frac{1}{x^{2} } +\frac{4}{x^{4} }  }{\frac{1}{x}-\frac{5}{x^{4} }  }  \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ =\frac{1}{0}=\infty } \end{gathered}$}

Note that, in general, 1/0 is an indeterminate form. However, we are computing a limit when x →∞, and both the numerator and denominator are positive as x grows, so we can conclude that the limit will be ∞.

5 0
2 years ago
X/3+9=17 simplify your answer
frosja888 [35]
I think the answer might be x=24
8 0
3 years ago
Other questions:
  • 15 points and will mark brainliest .......
    8·1 answer
  • Find all angles between 0 and 2π satisfying the condition sinx=−√2/2.
    12·1 answer
  • The lines y = 3x + 4 and y = 3x - 17 are perpendicular
    8·1 answer
  • Suppose point P (4,−9) is translated according to the rule (x,y) → ( x+3, y−2). What are the coordinates of P′? Explain.
    12·1 answer
  • What does the equation 0=-5n-2n equal n?
    7·1 answer
  • How do you solve this for math 7th grade 1/7-(-4/7)
    15·2 answers
  • Angle ABC measures 90 degrees. It has been split into two angles angle ABD and angle DBC. The measure of the two angles is in a
    10·1 answer
  • What is the line that passes through (2,4) and (3,8)
    11·2 answers
  • Use the graph to evaluate the function for the given input<br> value.<br> fl-1) =<br> f(1) =
    9·2 answers
  • Please help me please ​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!