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
PolarNik [594]
3 years ago
15

The radius of a giant beach ball is 18 inches. What is its surface area?

Mathematics
1 answer:
IRISSAK [1]3 years ago
8 0

Answer:

4071.5 in^2

Step-by-step explanation:

The surface area of a sphere of radius r is A = 4πr²

In this case, with r = 18 in, A = 4π(18 in)² = 4071.5 in²

You might be interested in
I’m working on 3 and 4 only maybe if I can have some explanation so I can understand and do more of these next week.
guapka [62]

4.b.

Answer:  See below.

Step-by-step explanation:

<h2><u>For the equation f(x) = 2x</u></h2>

3.a.  f(6) means use x = 6 in the equation f(x) = 2x

so f(6) would be f(6)= 2(6)

<u>f(6) = 12</u>

3.b.  f(-11) = 2(-11)

<u>f(-11) = -22</u>

3.c.  f(2.75) = 2(2.75)

<u>f(2.75) = 5.5</u>

3.d.  This is turned around.  We are told f(x)=20, so what would x need to be for f(x) to be 20?  Since f(x) = 2x, we can say 20 = 2x.  Therefore x = 10

f(10) = 20

<u>The rest of (3) are solved in the same fasion.h</u>

<u></u>

<h2><u>For the equation  f(x)= 5x+50</u></h2>

4.a.  f(7) = 5(7)+50

<u>f(7) = 85</u>

4.b. f(-12)

  f(-12) = 5*(-12)+50

<u>f(-12) = -60</u>

<u></u>

Continue in the same fashion for these types of problems.

7 0
2 years ago
The original rectangle has a perimeter of 16
zaharov [31]

As we can see that the sides of the rectangle have been doubled

6.2 ft changed to 12.4 ft

Now when the sides have been doubled

the Perimeter will also be doubled

So the perimeter of new rectangle should be the double the perimeter of old rectangle

So perimeter of new rectangle = 2 (16 ) = 32 feet

Option C is correct

7 0
3 years ago
Erica is buying a $205,000 home. She has decided to purchase 2 points in order to lower her interest rate. The appraisal fee is
victus00 [196]
2 points=2%=0.02
205000×0.02=4,100 cost of 2 points

Closing costs is
4,100+450+575+600
=5,725....answer

Hope it helps!
8 0
3 years ago
Read 2 more answers
The range of y= 2/3 sin x for pi &lt; x &lt; 3pi/2 is ___?
victus00 [196]

Answer:

-2/3 < y < 0

Step-by-step explanation:

y = Asin(x)

Edit*

There's a node (y=0) at pi for sine wave. At 3/2pi will be the min. So range goes from -2/3 to 0

5 0
3 years ago
Solving for Y. Write the following equation in slope-intercept form. <br><br> 13x - 11y = -12
Ahat [919]
13x - 11y = -12
-13x -13x
___________
-11y = -13x - 12
___ ______
-11 -11

-13x -12
y = _______
-11
3 0
3 years ago
Other questions:
  • Asap Help please THANK YOU!!
    13·1 answer
  • Let , −5−6 be a point on the terminal side of θ . find the exact values of cosθ , cscθ , and tanθ .
    6·1 answer
  • WILL GIVE BRAINLIEST AND 50 POINTS PLEASE ITS TIMED!!
    7·1 answer
  • What is the slope of the line represented by this equation -3x+8y=12
    13·1 answer
  • What is the area of the following circle?
    15·2 answers
  • How is (8×10,000)+(4×10)+(5×0.01)+(2×1) in standard form?
    13·2 answers
  • Patrick’s drawing uses a scale of 1 inch = 10 meters. Squidward made another scale drawing of the hotel with a scale of 2 cm = 4
    6·2 answers
  • What is the reciprocal of 5/6​
    9·2 answers
  • What is the answer and plz give me step by step explaining
    14·1 answer
  • How to find domain and range of a function
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!