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
yaroslaw [1]
3 years ago
5

The radius of a cylinder is 3x - 2 cm. The height of the cylinder is x + 3 cm. What is the surface area of the cylinder? Use the

formula A = 2πr^2 + 2πrh.
A. 2π(3x^2 + 10x - 8)
B. 2π(12x^2 + 7x - 2)
C. 2π(12x^2 - 2x +13)
D. 2π(12x^2 - 5x -2)
Mathematics
1 answer:
Anestetic [448]3 years ago
7 0
Surface area = 2 pi (3x-2)^2 + 2 pi  (3x -2) ( x + 3)

= 2 pi (9x^2 - 12x + 4 + 3x^2 + 7x - 6

= 2pi(12x^2 - 5x - 2)

Its D
You might be interested in
How many fifths are there in 3⅗​
Ilya [14]

Answer:

18/5

Step-by-step explanation:

5 1/5 = 1 thus 3 are 15 + 3 = 18/5

8 0
3 years ago
Read 2 more answers
You invest 4,100 in an account that pays an interest rate of 7.25% ,compounded continuously. Calculate the balance of your accou
levacccp [35]
\bf ~~~~~~ \textit{Continuously Compounding Interest Earned Amount}
\\\\
A=Pe^{rt}\qquad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{original amount deposited}\to& \$4100\\
r=rate\to 7.25\%\to \frac{7.25}{100}\to &0.0725\\
t=years\to &8
\end{cases}
\\\\\\
A=4100e^{0.0725\cdot 8}\implies A=4100e^{0.58}\implies A\approx 7322.757566075
8 0
3 years ago
The perimeter of the picture frame is 38 inches. The width of the frame is 7 inches, what is the length?
o-na [289]

Answer:

12 inches

Step-by-step explanation:

So you know that the perimeter of a picture frame (a rectangle) is 2 widths plus 2 lengths.

Let x= lengths and w= widths

From the question we already know that w=7, so we can set up an equation that says:

2x + 2w = 38

2x + 2(7) = 38

2x+14 = 38

2x +14 -14 = 38-14

2x = 24

2x/2 = 24/2

x= 12

Since x= lengths =12

the length of the frame is 12 inches.

7 0
3 years ago
Carmen works at a pet store. To feed 8 cats, she empties four 6-once cans of cat food into a large bowl. Carmen divides the food
Ipatiy [6.2K]
4 x 6 ounces = 24 ounces (total)
24 ounces ÷ 8 = 3 ounces

Ans : 3 ounces
5 0
3 years ago
Find the missing number in the following pattern 12,24,72,288
konstantin123 [22]
12 × 2 = 24

24 × 3 = 72

72 × 4 = 288

288 × 5 = 1,440, and so on...

<span><span>Comments </span> <span>Report</span></span>
3 0
3 years ago
Other questions:
  • - If Hannah purchased a 5-day parking
    14·1 answer
  • Help me pls pls pls​
    7·1 answer
  • Which expression is equivalent to .02m(n - 5) - .02(m + 10)? A) .02mn - .12m - 0.2 B) .02mn + .12m - 0.2 C) .02mn - .12m + 0.2 D
    14·2 answers
  • What is the value of the first quartile, (Q1)?<br> A .5<br> B 3.5<br> C 2.25<br> D 1.5
    15·1 answer
  • Help please thanks :)
    12·1 answer
  • Your bank account has a balance of $45.24.this is $51.35 more than yesterday. What was your account balance yesterday?
    6·2 answers
  • Which table of data represent proportional relationships why​
    13·1 answer
  • The product of two whole numbers is 360 and their sum is less than 100. what are the possibilities for the two numbers?
    11·2 answers
  • I need the rate of change
    15·2 answers
  • The baseball team is selling snacks at a game for a fundraiser. They purchased pretzels, chips, and candy bars to sell. They spe
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!