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
Delvig [45]
3 years ago
12

a sphere has a radius of 3x+2. which polynomial in standard form. best describes the total surface area of the sphere

Mathematics
1 answer:
Semenov [28]3 years ago
3 0
The answer is 36πx² + 48πx + 16π.

The surface area of the sphere with radius r is:
A = 4 π r²

r = 3x+2
A = 4 π (3x+2)²

Since (a+b)² = a² + 2ab + b², then (3x+2)² = (3x)² + 2 * 3x * 2 + 2² = 9x² + 12x + 4

A = 4π*(3x+2)² =
    = 4π*(9x² + 12x + 4) = 
    = 4π*9x² + 4π*12x + 4π*4 = 
    = 36πx² + 48πx + 16π
You might be interested in
Which table has a constant of proportionality between Y and X of 1/6?
dezoksy [38]

Answer:

B

Step-by-step explanation:

...

4 0
3 years ago
Read 2 more answers
Help with number 5 please
Goryan [66]

Answer:

22,5 km

Step-by-step explanation:

6 0
3 years ago
What is the solution to the inequality? −4x−8>−20
iogann1982 [59]

Answer:

see work attached and shown

5 0
3 years ago
The table of values represents the function ​​ g(x) and the graph shows the function ​f(x)​.
Tanya [424]

Answer:

B, C

Step-by-step explanation:

x-intercepts are when y=0.  f(x) has two x-intercepts at (1, 0) and (5, 0).  g(x) also has two x-intercepts; (-3, 0) and (5, 0).  So the first one is false, and the second one is true.

The maximum value of f(x) is 2.  The maximum value of g(x) is 4.  So the third one is true.

The y-intercept is the value of y when x=0.  So the y-intercept of f(x) is -1, and the y-intercept of g(x) is 3.  So the fourth one is false.

7 0
3 years ago
Which of the following pairs of items is a better​ buy?
Bas_tet [7]

Answer:

a. 6Pack of paint brushes for $12.99

b. 5 classes for $64.99

c. 12 pack of paper plates

Step-by-step explanation:

a.

I could buy a 6 pack of paint brushes for $ 12.99

or

buy 6 individual brushes for the price of $ 2.19 each.

6 x $2.19 = $13.14

first option is cheaper

b.

10 classes for s total of $150

$150 ÷ 10 = $15 (price per class)

5 classes for $64.99

$64.99 ÷ 5 = $12.998 (price per class)

c.

12 pack of paper plates for $2.29

25 pack for $4.99

$2.29 ÷ 12 = $0.1908 (price of one plate)

$4.99 ÷ 25 = $0.1996 (price for one plate)

5 0
3 years ago
Other questions:
  • Sally had 10 sea shells she gave away 4 how many did she have left?
    13·2 answers
  • An airplane 30,000 ft above the ground begins descending at a rate of 2,000 ft per minute. Write an slope-intercept form that mo
    11·1 answer
  • Which systems of equations have no real number solutions? Check all that apply.
    9·2 answers
  • Rapid____in Southeast Asia puts too much burden on infrastructure and services in cities. This leads to increasing_____among ric
    5·2 answers
  • What is the interquartile range for this set of data? 11, 19, 35, 42, 60, 72, 80, 85, 88 A) 30 B) 55.5 C) 60 D) 72
    8·2 answers
  • What is 0.277 rounded to the nearest hundredth?
    6·2 answers
  • 12 divided by -5/8<br> please help me:)
    10·1 answer
  • 10PTS<br> pls help me on this math problem and pls explain how you did it.
    9·2 answers
  • Please help ASAPppppppp
    14·2 answers
  • Helpppppp now plzzzzzzzzz
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!