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
Paha777 [63]
3 years ago
6

Determine the surface area of this cone if the radius is 4 cm and the height is 12 cm . Round your answer to the nearest tenth .

Help please because it says 209.22 is not the answer
Mathematics
1 answer:
maria [59]3 years ago
8 0
Base Surface Area = π×42
= 50.265482457437 inches2
Lateral Surface Area = π×4×√42 + 4.72440944881892
= 77.789838023204 inches2
Total Surface Area = 128.05532048064 inches2


Or in square centimeters:

Base Surface Area = π×10.162
= 324.2927866224 centimeters2
Lateral Surface Area = π×10.16×√10.162 + 122
= 501.8689189905 centimeters2
Total Surface Area = 826.1617056129 centimeters2
You might be interested in
Write any fraction that is less than 1/8
kotegsom [21]
<span>Sample answers are 1/9, 1/10, etc.

Explanation:
To write a fraction less than 1/8, you can keep the numerator 1 and make the denominator any number greater than 8. 1/8 is the same as one part out of 8. Imagine having many pizzas the same size, but cut into different numbers of pieces. 1 piece out of 8 would be a bigger piece than 1 piece out of 9, out of 10, or anything more than 8.</span>
8 0
3 years ago
Read 2 more answers
RSM QUESTION NEED HELP!!!!!! A pharmacist has a 13 % alcohol solution and another 18 % alcohol solution. How much of each must h
Luden [163]

Answer:

40 grams of 13% alcohol solution and 10 grams of 18% alcohol solution.

Step-by-step explanation:

13%(x) + 18%(50-x) = 14%*50g   Multiply them all

0.13x + (9-0.18x) = 7

0.13x-0.18x + 9 = 7   Simplify the equation and subtract 0.13x from 0.18x

9-0.05x = 7   Add 0.05x to each side

9 = 7+0.05x   Subtract 7 from both sides

0.05x = 2   Multiply each side by 100

5x = 200   Divide both sides by 5

x = 40

50 - 40 = 10

40 grams and 10 grams

Your welcome

4 0
3 years ago
Read 2 more answers
Find the measure of the numbered angles for the parallelogram in question one!!!
vodka [1.7K]
1) 70
2) 110
3) 70

because 110 is equivalent to angle 2. angle 1 and 3 are also equivalent so you add 110 + 110 which equals 220 and subtract 360-220 which equals 140 and divide by 2 to get angles 1 and 3.
7 0
3 years ago
Sergio ate 3.5 cookies. Each cookie contained 5.7 grams of sugar. How many grams of sugar did Sergio eat?
FrozenT [24]
I’ll get it correct here :)

He ate 19.95 grams of sugar.

3.5 x 5.7 = 19.95
5 0
3 years ago
Students in Mr. Clark's class are reading a book that has 180 pages.
Aleonysh [2.5K]

Answer:

Step-by-step explanation:

12 pages I think

4 0
3 years ago
Read 2 more answers
Other questions:
  • Peter attends 6 dance lessons each week all year long a year has 52 weeks peter missed 5 dance lessons while sick how many dance
    9·1 answer
  • A Poker club has 10 members. A president and a vice-president are to be selected. In how many ways can this be done if everyone
    14·1 answer
  • Which statement about equations and expressions is true? An example of an equation is 4.5 + x = 13.2 because it shows that two e
    15·2 answers
  • Please help it's the second one
    5·2 answers
  • A die is rolled, what is the probabilty to roll a number divisable by 2
    14·2 answers
  • 9/115 simplified??????
    10·1 answer
  • What is the value of the expression 24 – (7 + 5) ÷ 6 + 8? A. 10 B. 14 C. 11 D. 30
    7·1 answer
  • Identify the slope and y-intercept of each of the following:
    11·2 answers
  • Mark's computer weighs 35.769 pounds.
    6·1 answer
  • Ok bet slovea customer comes in looking for items get started painting ariana offers her a paint pallet a paint brush and a sket
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!