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
Kobotan [32]
2 years ago
14

What is the exact area of the following circle?

Mathematics
2 answers:
Vsevolod [243]2 years ago
5 0

Answer:

2nd option

› 56.25π cm²

Step-by-step explanation:

<u>we know , </u>

area of circle is πr²

so,

<u>given,</u>

diameter,d = 15cm

radius,r = d/2 = 15/2 = 7.5 cm

so,

area = πr²

= (7.5×7.5)π

= 56.25π cm²

i hope you find it helpful !!!!

pychu [463]2 years ago
3 0

Answer:

56.25 pi  cm^2

Step-by-step explanation:

To find the area of the circle,

we use the formula

A = pi r^2, where r is the radius

We know the diameter is 15 so we can find the  radius from

r = d/2  where d is the diameter

r = 15/2

A = pi ( 15/2) ^2

A = pi ( 225/4)

A = 56.25 pi  cm^2

You might be interested in
Math help please will mark brainliest
Musya8 [376]

Answer:

answer: positive 3

Step-by-step explanation:

when x=-2 y=3

3 0
3 years ago
Find the quadratic function y=a(x-h)^2 whose graph passes through the given points. (12,-7) and (9,0)
ryzh [129]

Answer:

y = (-7/3)(x - 9)

Step-by-step explanation:

<em><u>(12, - 7)</u></em>

y = a(x - h)^2

-7 = a(12 - h)^2

- 7 = a(144 - 24x + h^2)

<em><u>(9,0)</u></em>

0 = a(x - h)^2

0 = a(9 - h)^2

0 = a(81 - 18h + h^2)

From (9,0) we can conclude that

a = 0

or

(9 - h)^2 = 0

Let's try the second possibility.

Take the square root of both sides.

9 - h = sqrt(0)

Add h to both sides

9 - h = 0  

h = 9

So now what we have is

y = a(x - 9)

Use the first equation to get a

-7 = a(12 - 9)

-7 = a(3)

-7/3 = a

Answer

y = (-7/3)(x - 9)

6 0
3 years ago
What is equivalent to (x+1) (x-2)(x+4)(3x+7)
marta [7]

Answer: 6x*9

Step-by-step explanation:

open parathesises to

x+1*x-3*x+4*3x+7

combine like terms

6x*9

you can’t simplify further so bam

hope i did this right and it helps :)

8 0
4 years ago
Explain how to do this
Lera25 [3.4K]
Average of 2 numbers is 40
so total = 2 x 40 = 80

300 - 80 = 220

average of remaining 10 numbers = 220/10 = 22

answer
B) 22
6 0
4 years ago
Graph the equation by plotting three
tangare [24]
Graph the equation in a graphing calculator or in the table in a regular calculator and look for the zero on the x axis and the y axis
8 0
4 years ago
Other questions:
  • A. A newborn red panda weighs 100 grams. A
    13·1 answer
  • What is the slope for a line that is perpendicular to the line y=-5+4
    10·1 answer
  • Can anyone help me on this!
    14·1 answer
  • Click on the graphic to match the equation with its correct graph.<br> y=-x/2+1
    15·1 answer
  • Does anybody know the answer to the question?
    6·1 answer
  • Solve for the variable then find the missing angle.
    6·1 answer
  • HELP! NEED EXPLANATION FOR UNDERSTANDING A STEP IN THIS EQUATION
    13·1 answer
  • When the base of the ladder is 10 ft away from the base of a building, the top of the ladder touches the building 18 ft above th
    8·1 answer
  • Solve for x: 1/3 (x-22) = 4x<br>x = -2 <br>x = 34<br>x = 2 <br>x = -10 ​
    13·1 answer
  • Ejercicio de ecuaciones trigonométricas Necesitamos el resultado del ejercicio, alfa, teta y la comprobación de cada una. Ayudaa
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!