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
IgorC [24]
4 years ago
7

Find the surface area. Round your answer to the nearest tenth

Mathematics
1 answer:
Lina20 [59]4 years ago
4 0
A = 4πr^2 = 4π*9 = 113,1
You might be interested in
Solve using algebreic methods y=x^2+5x, y=7-x
adelina 88 [10]

Answer:

x = 1 and x = -7

Step-by-step explanation:

Given that,

y=x^2+5x  ...(1)

and

y = 7 -x ....(2)

Put the value of y from equation (2) in (1)

7-x=x^2+5x\\\\x^2+5x-7+x=0\\\\x^2+6x-7=0\\\\x^2+7x-x-7=0\\\\x(x+7)-1(x+7)=0\\\\(x-1)(x+7)=0

So,

x = 1 and x = -7

Hence, the solution of the given equations is x = 1 and x = -7

6 0
3 years ago
PLEASE HELP ME FAST!
Elenna [48]

Answer:

From <u>fourth</u> month onwards, the growth rate of f(x) is greater than that of g(x).

Step-by-step explanation:

Given:

The growth rates of both bank accounts are given as:

f(x)=3^x\\g(x)=5x+25

Now, as per question, we need to find the value of 'x' when the value of f(x)>g(x). Or,

3^x>5x+25

Now, we can do this by checking the values of 'x' by hit and trial method.

Let x=1. The inequality becomes:

3^1>5(1)+25\\3>30(False)

Let x=2. The inequality becomes:

3^2>5(2)+25\\9>35(False)

Let x=3. The inequality becomes:

3^3>5(3)+25\\27>40(False)

Let x=4. The inequality becomes:

3^4>5(4)+25\\81>45(True)

Therefore, the value of 'x' for which f(x)>g(x) is 4.

So, from the fourth month onwards, the balance in f(x) becomes greater than g(x).

The graphical solution is shown below to support the same.

From the graph, we can conclude that after the 'x' value equals 3.4, the graph of f(x) lies above of g(x). Hence, f(x)>g(x) for x>3.4

8 0
3 years ago
Write a polynomial if least degree with roots 9 and -6
klio [65]

Answer:

x² -3x  - 54

Step-by-step explanation:

given roots of a polynomial are 9 and -6

this means that (x-9) and (x+6) are factors of the polynomial.

To get the polynomial with the least degree, simply multiply the two factors to obtain a quadratic expression (degree 2)

(x-9) (x+6)

= x² + 6x -9x -54

= x² -3x  - 54

8 0
3 years ago
Determine the domain of the following graph:
dedylja [7]

Answer:

Domain: -5, -3, -2, 1, 3

Step-by-step explanation:

Find all the points on the x-axis that line up with the line shown on the graph.

8 0
2 years ago
8 divided by 30 plz respond add remander if added
Furkat [3]

Answer:

the answer of 8÷30 is 0.266

3 0
3 years ago
Read 2 more answers
Other questions:
  • The middle school is 2.72 kilometers from Marsha's house and 1.54 kilometers from Rayan's house. How much farther does Marsha li
    14·2 answers
  • Complete the equation of the line through (6,-6 and (8,8)
    9·1 answer
  • Please help picture shown !!!!!!
    10·1 answer
  • Select the correct answer.
    10·1 answer
  • Solve each inequality and graph its solution.
    11·1 answer
  • I have a question what is 2 plus 2 i will really live it if you respond
    14·2 answers
  • Plsss answer the question in the photo .I rlly need ur help.It s probably easy for most of you guys here .
    13·1 answer
  • a person deposits rs 55000 in bank p for 2 years at the rate of 10% per annum compounded annually .but after one year , bank has
    15·1 answer
  • Pls answer I give brainliest
    11·1 answer
  • Ajay has 170 red ball and 136 green ball.What is the ratio of the red and green balls. best answer will get brainliest mark​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!