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
GalinKa [24]
3 years ago
11

What is the circumference of a circle with a diameter of 9 cm?

Mathematics
1 answer:
Kamila [148]3 years ago
5 0

Answer:

the answer=28.27cm

using formula

c=2πr

d=2r

solving for c

C=πd

=π.9

=28.27

hope it help you

You might be interested in
Pls help me complete this
snow_tiger [21]

Answer: The number of times a yellow cube will be drawn is 390 times.

Step-by-step explanation: Like the last question with the blue cubes, set up a ratio.

Since it is still 240 times drawn and we need to figure out how many times a yellow cube will be drawn from 1200 times, the top number only changes.

78/240 = x/1200

Multiply 78 and 1200, which is 93,600.

Divide that by 93,600, which is 390.

7 0
3 years ago
A parabola can be drawn given a focus of (-11, -2) and a directrix of x= -3
fgiga [73]

Check the picture below, so the parabola looks more or less like that.

now, the vertex is half-way between the focus point and the directrix, so that puts it where you see it in the picture, and the horizontal parabola is opening to the left-hand-side, meaning that the distance "P" is negative.

\textit{horizontal parabola vertex form with focus point distance} \\\\ 4p(x- h)=(y- k)^2 \qquad \begin{cases} \stackrel{vertex}{(h,k)}\qquad \stackrel{focus~point}{(h+p,k)}\qquad \stackrel{directrix}{x=h-p}\\\\ p=\textit{distance from vertex to }\\ \qquad \textit{ focus or directrix}\\\\ \stackrel{"p"~is~negative}{op ens~\supset}\qquad \stackrel{"p"~is~positive}{op ens~\subset} \end{cases} \\\\[-0.35em] \rule{34em}{0.25pt}

\begin{cases} h=-7\\ k=-2\\ p=-4 \end{cases}\implies 4(-4)[x-(-7)]~~ = ~~[y-(-2)]^2 \\\\\\ -16(x+7)=(y+2)^2\implies x+7=-\cfrac{(y+2)^2}{16}\implies x=-\cfrac{1}{16}(y+2)^2-7

8 0
2 years ago
If the cost, in dollars, for a group to attend a play is represented by 72p + 250, where p is the number of people attending, wh
Afina-wow [57]

Answer:

da answa iss 358

Step-by-step explanation:

i kno dis cuz guapo J tol me so and das my boy fr talmbout dat pittsburgh 412 manyshotspittsburgh alten king mckeesport don b fing w da gang unless u wanna hang ya feel??

6 0
2 years ago
Read 2 more answers
2.) AN *
WINSTONCH [101]

Answer:

is this a joke i have no clue

Step-by-step explanation:

maybe A is this math or sumthing? lol SUM-thing  

4 0
4 years ago
What is the<br> range of<br> the quiz<br> grades?
FromTheMoon [43]

Answer:

25

Step-by-step explanation:

In order to find the range, you have to subtract the smallest number from the largest number.  100 - 75 = 25.

Hope this helped!

4 0
3 years ago
Read 2 more answers
Other questions:
  • In an acute scalene triangle, one angle is 20 degrees larger than another angle and the third angle is half the sum of the other
    15·1 answer
  • Is 4/16 equivalent to 0.25 and explain
    8·1 answer
  • An arithmetic sequence is shown below. 10, 7, 4, 1, – 2, ... Which function describes the value of the nth term in the sequence?
    11·1 answer
  • My cousin needs help on all the questions. Please help him he is failing math
    12·1 answer
  • What is 99 * 99 * 101 * 48774
    8·2 answers
  • 3.5× 1.5× 2 into a mixed number
    15·2 answers
  • Please help asap will mark brainliest
    15·2 answers
  • Can someone help me:)
    6·1 answer
  • Find the product mentally.
    12·2 answers
  • Which of the following is the best first step in solving the quation below?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!