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
Shtirlitz [24]
3 years ago
7

What is the area of a circle whose radius is 6ft?

Mathematics
1 answer:
uranmaximum [27]3 years ago
7 0

Answer:

hello :

Step-by-step explanation:

the area of a circle is : A = π r²       r : the radius

A = π (6)² = 36π (ft)² ........( answer : C)

You might be interested in
A line segment has endpointsA(-5, 1) and b(-3, 3) what is the midpoint of the segment​
Galina-37 [17]
The mid point of the segment would be (-4,2)
3 0
3 years ago
Read 2 more answers
HELP QUICK! NO BOTS!
gtnhenbr [62]

Answer:I'm pretty sure it's A

Step-by-step explanation:

6 0
3 years ago
Let f(x) = xe^-x+ ce^-x, where c is a positive constant. For what positive value of c does f have an absolute
Illusion [34]

Answer:

c=6

Step-by-step explanation:

The absolute maximum of a continuous function f(x) is where f'(x)=0. Therefore, we must differentiate the function and then set x=-5 and f'(x)=0 to determine the value of c:

f(x)=xe^{-x}+ce^{-x}

f'(x)=-xe^{-x}+e^{-x}-ce^{-x}

0=-(-5)e^{-(-5)}+e^{-(-5)}-ce^{-(-5)}

0=5e^{5}+e^{5}-ce^{5}

0=e^5(5+1-c)

0=6-c

c=6

Therefore, when c=6, the absolute maximum of the function is x=-5.

I've attached a graph to help you visually see this.

7 0
3 years ago
Calculate the area of triangle ABC with altitude CD, given A (6,0) B(1,5) C (2,0) and D (4,2)
Elina [12.6K]
So hmm check the picture below

the height or altitude is CD
and the base is AB

how long are those? well \bf \textit{distance between 2 points}\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%  (a,b)
A&({{ 6}}\quad ,&{{ 0}})\quad 
%  (c,d)
B&({{ 1}}\quad ,&{{ 5}})\\\\
C&({{ 2}}\quad ,&{{ 0}})\quad 
%  (c,d)
D&({{ 4}}\quad ,&{{ 2}})
\end{array}\qquad 
%  distance value
d = \sqrt{({{ x_2}}-{{ x_1}})^2 + ({{ y_2}}-{{ y_1}})^2}
\\\\\\
AB=\sqrt{(1-6)^2+(5-0)^2}\qquad \qquad CD=\sqrt{(4-2)^2+(2-0)^2}

7 0
3 years ago
Read 2 more answers
When 12 is subtracted from 3 times a number,the result is 24. Find the number
trasher [3.6K]
I get:
24 = 3x-12
add 12 to both sides

36 = 3x

divide each side by 3 and you will get 12
7 0
3 years ago
Read 2 more answers
Other questions:
  • A triangle has an area of 180 square inches and a base of 18 inches. What is the height?
    7·1 answer
  • Use >,<, or = to solve the inequality ? 7.5 7.05
    14·1 answer
  • I need to know this aspa idk how to do this
    10·1 answer
  • Li buys supplies so he can make and sell key chains. He begins to make a profit only after he sells 4 key chains. What point on
    11·1 answer
  • PLEASE ANSWER AND EXPLAIN ♥️ITS DUE VERY SOON.
    13·2 answers
  • -2(3x-2) + 2x = -6X - 10
    6·1 answer
  • 3. Kate's "Dining Card" entitles her to $10 off the price of a meal after a 15% tip has been added to the
    8·1 answer
  • Determine the explicit formula for the following arithmetic sequence. Put it in the form
    13·1 answer
  • Please help with my math homework ​
    9·2 answers
  • Choose the graph of the solution to the inequality x < -12.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!