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
KIM [24]
3 years ago
7

Please help me with this!!!

Mathematics
1 answer:
telo118 [61]3 years ago
5 0

Answer:

314 m³

Step-by-step explanation:

The volume (V) of a cone is calculated using the formula

V = \frac{1}{3}πr²h

where r is the radius and h the perpendicular height

To find h use the right triangle from the vertex to the midpoint of the base and the radius.

Using Pythagoras' identity on the right triangle

where the slant height is the hypotenuse, then

h² + 5² = 13²

h² + 25 = 169 ( subtract 25 from both sides )

h² = 144 ( take the square root of both sides )

h = \sqrt{144} = 12, hence

V = \frac{1}{3}π × 5² × 12

   = π × 25 × 4 = 100π ≈ 314 m³

You might be interested in
8xy − 9x2 y − 5x + 6
givi [52]

Answer:

DOnt know

Step-by-step explanation:

dont know

4 0
2 years ago
Read 2 more answers
What is theformula for finding the hight of a 30-60-90 degree triangle
miv72 [106K]
We don't know which side your triangle is sitting on, so the 'height'
could be any one of three values.

Here are the two simple tools that tell you everything you want to
know about a 30°-60°-90° triangle.  These are worth memorizing:

-- The side opposite the 30° angle is 1/2 of the hypotenuse.

-- The side opposite the 60° angle is 1/2 of the hypotenuse times √3 .

I memorized them exactly 60 years ago.  They've been very useful,
and as far as I know, they haven't changed.
7 0
3 years ago
Evaluate u + xy, if u = 18, x = 10, and y = 8. <br><br> A. 188<br> B. 36 <br> C. 98<br> D. 224
Luda [366]
If you would like to evaluate u + xy, you can do this using the following steps:

u = 18, x = 10, y = 8
u + xy = 18 + 10 * 8 = 18 + 80 = 98

The correct result would be C. 98.
7 0
3 years ago
Read 2 more answers
50 points and brainliest!!!!! fast pls!! (08.02)A pair of equations is shown below. x + y = 5 y = 1/2 x + 2 If the two equations
likoan [24]
The answer would be C (2,3)
5 0
3 years ago
Find the volume of the prism height 3 in 5 and 12
Keith_Richards [23]

Step-by-step explanation:

To find the volume of a rectangular prism V=whl so w=3 x 5 x 12. Multiply all those numbers together to get 180 inches cubed.

4 0
2 years ago
Read 2 more answers
Other questions:
  • Supper saver grocery carries a 128 ounce jug of iced tea. The nutritional label states that the jug serves 16 people . Which rat
    10·1 answer
  • Find the equation of the quadratic function whose graph is a parabola containing the points (0,2), (3,26), and (-1,6).
    8·1 answer
  • Solve for k.<br> 11<br> 8<br> k<br> 4<br> -
    11·2 answers
  • Who were the tributes paid to?
    9·1 answer
  • Write the sum using summation notation, assuming the suggested pattern continues. 6, -18, 54, -162, +… Is this sequence arithmet
    12·1 answer
  • Identify the slope and y-intercept of the graph of the equation.
    12·1 answer
  • 4 point
    10·1 answer
  • The cost of renting a car is $46/week plus $0.25/mile traveled during that week. An equation to represent the cost would be y =
    9·1 answer
  • What is the perimeter of this triangle 3x+10, x-7
    6·2 answers
  • Three multiplied by the sum of 4 and a number is the same as 18 more than the number. Find the number.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!