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
tamaranim1 [39]
2 years ago
14

If the surface area of a cylinder is given by SA =

Mathematics
1 answer:
Mars2501 [29]2 years ago
7 0

Answer:

The height is 11/2

Step-by-step explanation:

We know SA = 30n

and r = 2

We are solving for h. So plug in our values

30n = 2n(2)^2 + 2n(2)h

Multiply and square on the right side terms

30n = 8n + 4nh

Divide everything by n

30 = 8 + 4h

Subtract 8 on both sides

22 = 4h

Divide by 4 on both sides

h = 22/4 = 11/2

Check:

30n = 2n(2)^2 + 2n(2)(11/2)

30n = 8n + 22n

30n = 30n

You might be interested in
Which unit rate corresponds to the proportional relationship shown in the graph?
Evgen [1.6K]

Answer:

1.5 cm/s​

Step-by-step explanation:

The unit rate is the same as the slope.

To find the slope, we use the slope formula:

m=\frac{y_2-y_1}{x_2-x_1}

Using our points, we have

m = (9-0)/(6-0) = 9/6 = 3/2 = 1.5 cm/s

6 0
3 years ago
Read 2 more answers
Slope of the line passing through points (-6,6) and (4,-7)
castortr0y [4]
The slope of a line is constant because the acceleration is equal to zero.

The slope of a line is always just (y2-y1)/(x2-x1), so in this case:

m=(-7-6)/(4--6)

m=-13/10

m=-1.3
3 0
3 years ago
"Which ratio does not belong with the other three?" Explain your reasoning." Help me on 3. Please
SIZIF [17.4K]
12:15 does not belong, since that is a ratio of 4:5, whilst the others are all 3:4.
8 0
3 years ago
Read 2 more answers
Help plz will give brainlyst​
fredd [130]

Answer will be no A I think that

6 0
3 years ago
How many different combinations are possible if each lock contains the numbers 0 to 39, and each combination contains three dist
Georgia [21]
(e) Each license has the formABcxyz;whereC6=A; Bandx; y; zare pair-wise distinct. There are 26-2=24 possibilities forcand 10;9 and 8 possibilitiesfor each digitx; yandz;respectively, so that there are 241098 dierentlicense plates satisfying the condition of the question.3:A combination lock requires three selections of numbers, each from 1 through39:Suppose that lock is constructed in such a way that no number can be usedtwice in a row, but the same number may occur both rst and third. How manydierent combinations are possible?Solution.We can choose a combination of the formabcwherea; b; carepair-wise distinct and we get 393837 = 54834 combinations or we can choosea combination of typeabawherea6=b:There are 3938 = 1482 combinations.As two types give two disjoint sets of combinations, by addition principle, thenumber of combinations is 54834 + 1482 = 56316:4:(a) How many integers from 1 to 100;000 contain the digit 6 exactly once?(b) How many integers from 1 to 100;000 contain the digit 6 at least once?(a) How many integers from 1 to 100;000 contain two or more occurrencesof the digit 6?Solutions.(a) We identify the integers from 1 through to 100;000 by astring of length 5:(100,000 is the only string of length 6 but it does not contain6:) Also not that the rst digit could be zero but all of the digit cannot be zeroat the same time. As 6 appear exactly once, one of the following cases hold:a= 6 andb; c; d; e6= 6 and so there are 194possibilities.b= 6 anda; c; d; e6= 6;there are 194possibilities. And so on.There are 5 such possibilities and hence there are 594= 32805 such integers.(b) LetU=f1;2;;100;000g:LetAUbe the integers that DO NOTcontain 6:Every number inShas the formabcdeor 100000;where each digitcan take any value in the setf0;1;2;3;4;5;7;8;9gbut all of the digits cannot bezero since 00000 is not allowed. SojAj= 9<span>5</span>
8 0
3 years ago
Other questions:
  • A line has a rise of 3 and a run of 12. find the slope of the line. type a numerical answer in the space provided. if necessary,
    6·1 answer
  • Express the ratio 21:6 in its simplest form
    11·2 answers
  • You look over the songs in a jukebox and determine that you like 1414 of the 5252 songs. ​(a) What is the probability that you l
    7·1 answer
  • Amy’s grandmother is exactly 6 times older than Amy.
    11·1 answer
  • Devin drank 1/8 gallon of orange juice, and his brother Sam drank 1/3 of the same gallon. How much of the gallon of orange juice
    9·1 answer
  • Write an equation of the line that passes through (-1,7) and is perpendicular to the line y=-1/8x -1
    12·1 answer
  • Answer This plz I need it <br> only answer if you know the answer and need the steps
    8·2 answers
  • HELPPPPP PLEASEeeeeee
    7·2 answers
  • What is 64 ÷ (15 - 7) x2 - 9 using pemdas​
    15·2 answers
  • An airplane flying with the wind takes 2 hours to travel a distance
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!