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IgorLugansk [536]
2 years ago
13

Khan shennanigans ;(

Mathematics
1 answer:
Snezhnost [94]2 years ago
6 0

Answer:

15

Step-by-step explanation:

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What is the measure of Z6?
DedPeter [7]
Yeebcxccfsfhgwsrthjrss
6 0
3 years ago
if the height of the cylinder with a radius of 12 cm and a height of 20 cm has the same volume as a cone with a radius of 8 cm.
Marrrta [24]

Answer:

\large\boxed{H=135\ cm}

Step-by-step explanation:

The formula of a volume of a cylinder:

V=\pi r^2H

r - radius

H - height

We have the radius r = 12cm and the height H = 20cm. Substitute:

V=\pi(12^2)(20)=\pi(144)(20)=2880\pi\ cm^3

The formula of a volume of a cone:

V=\dfrac{1}{3}\pi r^2H

r - radius

H - height

We have the radius r = 8cm and the volume V = 2880πcm³. Substitute:

\dfrac{1}{3}\pi(8^2)H=2880\pi\qquad\text{divide both sides by}\ \pi\\\\\dfrac{1}{3}(64)H=2880\qquad\text{multiply both sides by 3}\\\\64H=8640\qquad\text{divide both sides by 64}\\\\H=135\ cm

7 0
3 years ago
If we add, 7xy + 5yz – 3zx, 4yz + 9zx – 4y and –3xz + 5x – 2xy, then the answer is:
RideAnS [48]

Answer:

A. 5xy + 9yz + 3zx + 5x – 4y

Step-by-step explanation:

uhh credit for this answer goes to Blaise Pascal for inventing calculators .-.

4 0
1 year ago
Read 2 more answers
A track and field playing area is in the shape of a rectangle with semicircles at each end . The perimeter of the track is to be
MAVERICK [17]
We can let the radius of the semi circles be r and x can be the length of the rectangle.
The perimeter will be Perimeter = 2x + 2pr = 1200
The area of the rectangle is Area = x(2r)
 Once we solve the perimeter equation, you get x = 600.
Put this into the area equation and you get Area = (600 - pr)(2r)
The maximum then gives r = 95. 493 and area 57, 295.8
Dimensions

Height is twice the radius or 190.986. Find base use equation x = 600 - p(95.493) = 300.

This means dimensions are 300 by 190.986 
5 0
3 years ago
(4x+2y=4<br> (6x +2y=8<br> Solve by elimination
lyudmila [28]

Answer: Y=1

Step-by-step explanation:

<h2><u><em>Hope this helps</em></u></h2>
7 0
3 years ago
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