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
Gekata [30.6K]
3 years ago
8

I need help with this

Mathematics
1 answer:
slava [35]3 years ago
7 0

Answer:

A = πr^2 = π·9^2 ≈ 254.469

in exact terms

A = π*9^2 = π81 = 81π

Step-by-step explanation:

enter the first answer if you don't need exact measurements, if you need exact measurements enter the second answer.

You might be interested in
Find the inverse function of f(x)= square root of 2x+2
Alik [6]

The inverse function of the above function is f(x) = \frac{x^{2} - 2}{2}

You can find the inverse of any function by switching the f(x) and x terms. Once you have done that, solve for the new f(x). Finally, what you'll have remaining is the inverse function. The work is done for you below:

f(x) = \sqrt{2x + 2} ----> Switch the x and f(x)

x = \sqrt{2f(x) + 2} ---> square both sides

x^{2} = 2f(x) + 2 ---> subtract 2 from both sides

x^{2} - 2 = 2f(x) ----> divide both sides by 2

\frac{x^{2} - 2}{2} = f(x) ----> switch the order for formatting sake.

f(x) = \frac{x^{2} - 2}{2}

6 0
4 years ago
the ratios of the sides of a triangle are 3:2:4. if the shortest side is 26cm, what is the length of the longest side?
zalisa [80]
Answer: 52

Divide 26/2 and you get 13, and then multiply 13 by 4. Think of it as a proportion.
4 0
3 years ago
What is the product of 7 and m? then evaluate the expression for m = 4.
ra1l [238]

the product of 7and m is 7m

if m=4

then the product is 7*4

=28

5 0
4 years ago
Read 2 more answers
Please help me please!!!!!!!
Alex787 [66]
The answer is B) 60 

Hopes this helps ya!
6 0
4 years ago
The graph of y=x^2 was transformed to Y= -(x+3)^2 +5. Describe all transformations applied to the original function and determin
mina [271]

Hey there!

1. The graph was flipped vertically and now opens downward.

We know this because there is a negative sign in front of the equation:

y= \boxed- (x+3)^2+5

2. The graph was moved 3 units to the left.

We know this because there is 3 added to x inside of the parenthesis. Remember, inside (parenthesis) is opposite and acts on x, outside (parenthesis) is same and acts on y.

y=-(x\boxed{+3})^2+5

3. The graph was moved 5 units up.

We know this because there is 5 added at the end of the equation. It acts on y because it is outside of the parenthesis.

y=-(x+3)^2\boxed{+5}

Hope this helps!

3 0
3 years ago
Other questions:
  • Integrate the following: e^(2x)
    13·1 answer
  • In the American justice system, a criminal is presumed innocent until proven guilty, meaning that the prosecution must gather en
    15·1 answer
  • Solve the linear system of equations using the linear combination method.<br><br> {8a−4b=205a−8b=62
    8·1 answer
  • Jennifer is completing the square to solve the quadratic equation x? - 0-3= 0.
    12·1 answer
  • The annual amount A (in billions of dollars) Americans spent on meals and
    13·1 answer
  • 1. find m s in rstw<br> 2. solve a system of linear equations <br> 3. find the value of x
    5·1 answer
  • Kaitlin bought 6 CDs that were each the same price. Including sales tax, she paid a total of 68.40. Of that total, 4.80 was tax.
    6·2 answers
  • Let f(x) = 2x2 + x − 3 and g(x) = x − 1. Find f(x)/g(x) and state its domain.
    5·1 answer
  • A movie theater manager of a small theater sells two sizes of popcorn at the concession stand. A jumbo popcorn has a profit of $
    11·1 answer
  • Rodea la fracción que sigue y escribe el patrón que corresponde en cada sucesion​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!