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
pishuonlain [190]
3 years ago
13

Find the area of a circle is with a diameter of 6

Mathematics
2 answers:
m_a_m_a [10]3 years ago
5 0

Answer:

28.27

Step-by-step explanation:

Mice21 [21]3 years ago
5 0

Answer:

9\pi or 28.26

Step-by-step explanation:

First, you need to find the radius (6/2 =3).

Next, you need to plug the value into the equation A = pi * r^2

A = \pi * 3^2

A = 9\pi = 28.26

You might be interested in
You roll a pair of honest dice. If you roll a total of 7, you win $18; if you roll a total of 11, you win $54; if you roll any o
amm1812
Answer: -1
The negative value indicates a loss

============================================================

Explanation:

Define the three events
A = rolling a 7
B = rolling an 11
C = roll any other total (don't roll 7, don't roll 11)

There are 6 ways to roll a 7. They are
1+6 = 7
2+5 = 7
3+4 = 7
4+3 = 7
5+2 = 7
6+1 = 7
Use this to compute the probability of rolling a 7
P(A) = (number of ways to roll 7)/(number total rolls) = 6/36 = 1/6
Note: the 36 comes from 6*6 = 36 since there are 6 sides per die

There are only 2 ways to roll an 11. Those 2 ways are:
5+6 = 11
6+5 = 11
The probability for event B is P(B) = 2/36 = 1/18

Since there are 6 ways to roll a "7" and 2 ways to roll "11", there are 6+2 = 8 ways to roll either event. 
This leaves 36-8 = 28 ways to roll anything else
P(C) = 28/36 = 7/9

-----------------------------

In summary so far,
P(A) = 1/6
P(B) = 1/18
P(C) = 7/9

The winnings for each event, let's call it W(X), represents the prize amounts.
Any losses are negative values
W(A) = amount of winnings if event A happens 
W(B) = amount of winnings if event B happens
W(C) = amount of winnings if event C happens
W(A) = 18
W(B) = 54
W(C) = -9

Multiply the probability P(X) values with the corresponding W(X) values
P(A)*W(A) = (1/6)*(18) = 3
P(B)*W(B) = (1/18)*(54) = 3
P(C)*W(C) = (7/9)*(-9) = -7

Add up those results
3+3+(-7) = -1

The expected value for this game is -1.
The player is expected to lose on average 1 dollar per game played.


Note: because the expected value is not 0, this is not a fair game.


7 0
3 years ago
Read 2 more answers
Jeff is purchasing a car for $29,175 that will depreciate in value 7.5% each year.
beks73 [17]

Answer:

Step-by-step explanation:

figure that S*** out your self jeez

5 0
3 years ago
Urgent please help..
storchak [24]
The answer is 51.3

Explanation:
You’re finding angle Y, so write the SOH CAH TOA. the two sides your are given are the adjacent side to Y and the opposite side so you use tangent. You then get the equation tanY=10/8 Since you’re finding an angle you use inverse tangent so you get y=tan^-1(10/8) and then put that into the calculator!
8 0
3 years ago
What is the value of a<br> Help please
erastova [34]

When the base and the height of a triangle are the same. the hypotenuse is that number times sqrt2.

B and C are 7, so a would also be 7

8 0
3 years ago
Flora made 8 withdrawls of $65 each from her bank account. What was the overall change in her account
ohaa [14]

withdrawals are when cash is taken out from the account

Flora withdraws an amount of $75 at a time from her bank account

she makes 7 such withdrawals 

one withdrawal she takes out - $75

then seven withdrawals leads to - $75 x 7 = $525 

then overall change in her account has been a net withdrawal of $525

so the overall change in the account is -$525

7 0
3 years ago
Other questions:
  • A(9,2) B(1,6)<br> if (2,k) is equidistant from A and B, find the value of k.
    11·1 answer
  • NEED HELP! The endpoints of WX are W(2,-7) and X(5,-4).
    6·1 answer
  • NEED GEOMETRY HELP ASAP (11 points)
    11·1 answer
  • A taco stand sells 296 tacos in four hours. At this rate, how many tacos would sell in 1/2 an hour?
    8·2 answers
  • What is the area of the figure below?
    10·2 answers
  • I'll give brainlest &lt;3
    14·2 answers
  • The base of a solid right pyramid is a square with an
    8·1 answer
  • Find the value of x <br> will mark brainliest
    12·1 answer
  • How to find the volume of the object
    6·1 answer
  • Consider the expression 1/3 bwh
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!