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
SashulF [63]
3 years ago
12

The circular base of a cone has a radius of 5 centimeters. The height of the cone is 12 centimeters, and the slant height is 13

centimeters. What is the approximate surface area of the cone? Use 3.14 for π and round to the nearest whole number. 267 cm2 283 cm2 456 cm2 487 cm2
Mathematics
1 answer:
Iteru [2.4K]3 years ago
4 0

Answer:

283 cm^2

Step-by-step explanation:

Solution:-

We have a cone with a circular base of radius r = 5 cm

The height of the cone is h = 12 cm

The slant height of the cone is L = 13 cm

We are to determine the surface area of the cone. The surface area of the cone is comprised of two parts:

         Base Area : Circle

               A_1 = \pi r^2\\\\A_1 = \pi 5^2\\\\A_1 = 25\pi

        Curved Surface: conical

                A_2 = \pi * r*L\\\\A_2 = \pi * 5*13\\\\A_2 = 65\pi

The total surface area of the cone can be written as ( A ):

               A = A_1 + A_2\\\\A = (25 + 65 )*\pi \\\\A = 90*(3.14) \\\\A = 282.7433 cm^2

Answer: The surface area of the cone to nearest whole number would be 283 cm^2

You might be interested in
Suppose that prices of recently sold homes in one neighborhood have a mean of $215,000 with a standard deviation of $8900. Using
bonufazy [111]

Answer:

The minimum percentage of recently sold homes with prices between $197,200 and $232,800 is 75%.

Step-by-step explanation:

Chebyshev Theorem

The Chebyshev Theorem can also be applied to non-normal distribution. It states that:

At least 75% of the measures are within 2 standard deviations of the mean.

At least 89% of the measures are within 3 standard deviations of the mean.

An in general terms, the percentage of measures within k standard deviations of the mean is given by 100(1 - \frac{1}{k^{2}}).

In this question:

Mean of $215,000, standard deviation of $8900.

What is the minimum percentage of recently sold homes with prices between $197,200 and $232,800?

215000 - 2*8900 = 197200

215000 + 2*8900 = 232800

Within 2 standard deviations of the mean, so:

The minimum percentage of recently sold homes with prices between $197,200 and $232,800 is 75%.

4 0
3 years ago
(Writing to Explain) There are 12 plots in a community garden. What Information do you need to know if you wanted to know how mu
USPshnik [31]
You would need to know the length and width of each plot.
3 0
3 years ago
Please Help:
scoundrel [369]

If we multiply and then divide the number by the same thing,
we won't change its value.

Take the number:    58,000,000,000

Divide it by  10¹⁰ :    5.8

Multiply it by 10¹⁰ :   5.8 x 10¹⁰

They want a single digit, so we'll round the 5.8
to the nearest whole number:

                                   6 x 10¹⁰ .


6 0
3 years ago
Help it’s my last question please!
MatroZZZ [7]

Answer:

What is it??

Step-by-step explanation:

wat's the question??

7 0
3 years ago
Read 2 more answers
If x &lt;2, simplify <br> |x - 2| - 4|-6|
galina1969 [7]

Answer:

If x <2, simplify  some answer, i hope you find it

honestlyyyy do hope lol

4 0
3 years ago
Other questions:
  • Is 1500 ml greater than less than or equal to 1.5 l?
    6·1 answer
  • The number of customers for a new online business can be modeled by y = 8x2 + 100x + 250, where x represents the number of month
    10·1 answer
  • Mario has a box of blocks 8 inches long, 6 inches wide, and 7 inches high.
    15·1 answer
  • Which is Greater 3/4 or 11/16
    8·2 answers
  • The point that is needed?
    7·1 answer
  • Find the value of x.<br> 101 x +29
    14·2 answers
  • Robin needs to determine the number of 2/5
    10·1 answer
  • Ten members of Balin’s soccer team ran warm ups for practice. Each member ran the same distance. Their combined distance was Sta
    9·2 answers
  • You are dealt one card from a​ 52-card deck. Find the probability that you are dealt a two or a black card?
    10·2 answers
  • En una empresa se realizan dos descuentos sucesivos : el primero del 30% y luego otro del 10% para la venta de sus artículos ¿ c
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!