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
Eva8 [605]
3 years ago
14

If a circle has 18 in what would the area be

Mathematics
2 answers:
Volgvan3 years ago
8 0

Answer:

If r = 18, the area of the circle is 1017.88

If d = 18, the area of the circle is 254.47

Step-by-step explanation:

Because your question was a little vague I had to give two answers. You need to specify what 18 is; is it the radius or the diameter?

Since the equation for finding the area of a circle is A = 2 * π * r, and half of the diameter of a circle is equal to the radius, the answers will be quite different.

If radius:

r = 18

A = 2 * π * (18)

A = 1017.88

If diameter:

d=18

1/2 * 18 = 9

A = 2 * π * (9)

A = 254.47

olasank [31]3 years ago
5 0
Is that the radius or diameter?

A= pi r ^2
You might be interested in
How do you write 0.27777777777777..... as a whole number
Agata [3.3K]

Answer:

i think 27777777777777/100000000000000

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
For extra credit please help solve​
hammer [34]

Answer:

∠ ABC = 37°

Step-by-step explanation:

Angles on the circle subtended by the same arc are congruent.

∠ ABC and ∠ ADC are angles on the circle subtended by arc AC , then

∠ ABC = 37°

3 0
3 years ago
Solve the equation. <br><br> 6x+7=8x−15
katen-ka-za [31]
You need to change around the values so that the letters are on one side whereas numbers on the other:

15 +7 = 8x - 6x 
22 = 2x
x = 11.

Hope This Helps!

4 0
4 years ago
Read 2 more answers
Please help<br> Value of x<br> and what are angles m thank you!
Usimov [2.4K]

To find the value of x, you want to use the vertical angles theorem.

The vertical angles theorem says that all vertical angles (which is what TRY and QRW are) are congruent to each other. Knowing this you can make an equation where the angles are equal to each other to find the value of x.

TRY = QRW, so:

(x+16) = (4x-5)

1. Add 5 to both sides.

(x+21) = (4x)

2. You can get rid of the parentheses.

x+21 = 4x

3. Subtract x from both sides.

21 = 3x

4. Divide both sides by 3, isolating x.

7 = x

5. Flip this equation around, so:

x = 7

xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

To find the measure of TRY then plug x into the expression for TRY, which is (x+16).

TRY => ((7)+16) = 23

Since TRY is 23, the vertical angles theorem says that QRW is also 23. Add these measures up.

23+23 = 46

A line's measure is 180 degrees, so two lines would add up to 360 degrees. Subtract 46 from 360 to find the remaining degrees.

360-46 = 314

TRQ and YRW must be congruent to each other so that means you can divide 314 by 2.

314/2 = 157

xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Answers are:

TRY = 23

TRQ = 157

5 0
4 years ago
In a certain deck of cards, each card has a positive integer written on it. In a multiplication game, a child draws a card and m
ASHA 777 [7]

Answer:

  4 and 13

Step-by-step explanation:

You want integer solutions to ...

  15 ≤ n(n+1) ≤ 200

If we let the limits be represented by "a", then the equality is represented by ...

  n² +n -a = 0

  (n² +n +1/4) -a -1/4 = 0

  (n +1/2)^2 = (a +1/4)

  n = -1/2 + √(a +1/4)

For a=15, we have

  n ≥ -1/2 + √15.25 ≈ 3.4 . . . . . minimum n is 4

For a=200, we have

  n ≤ -1/2 + √200.25 ≈ 13.7 . . . maximum n is 13

The least and greatest integers on the cards are 4 and 13.

8 0
3 years ago
Other questions:
  • Multiply. (give answer as a mixed number.) 6 1/4 x 3 3/5 =
    12·1 answer
  • Is it possible for two numbers to have a difference of 8, and a sum of 1?
    13·2 answers
  • Owen's bedroom has a perimeter of 46 feet. If the length of the bedroom is 11 feet, what is the width of the bedroom
    10·2 answers
  • Brianna has saved $32. 1/4 of the $ she earned from babysitting. How much $ did she earn babysitting?
    15·1 answer
  • Joan bought 705 crayons that came in packs of 15. How many packs of crayons did Joan buy?
    11·2 answers
  • The beginning value is 5 and its value is 3 units smaller at each stage. Equation:
    12·2 answers
  • If 24 chairs cost a total of $312.00. What is the unit price for each chair?
    7·2 answers
  • The aiden middle school girls soccer team won 80 percent of its games this season. If the team won 12 games how many games did i
    8·2 answers
  • -4 1/3. Divided by -2 3/5
    15·2 answers
  • Of the following fractions: 1/4, 7/9, 7/12, and 9/16, which is the largest?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!