Answer:
<h2>A) 3 cm</h2>
Step-by-step explanation:
The formula of a volume of a cylinder:
r - radius
H - height
We have r = 1cm and H = 21cm. Substitute:
The formula of a cone:
r - radius
H - height
We have V = 21π cm³ and H = 7cm. Substitute:
<em>divide both sides by π</em>
<em>divide both sides by 7</em>
<em>multiply both sides by 3</em>
Answer:
B-92
Step-by-step explanation:
Baku is the capital of Azerbaijan and is the lowest national capital in the world, sitting at 92 feet below sea level. Not only is it the lowest national capital by elevation, but it's also the biggest city found at levels this low with a total population of just over 2 million people as of 2016
Answer:
1/5
Step-by-step explanation:
Scale factor= Image/Object
Figure C
_______(Take any of the sides of both figures)
Figure B
Scale factor= 1.5 1
___ = __
7.5 5
Answer:
± 2
Step-by-step explanation:
let the number be n , then
n² - 4 = 0 ( add 4 to both sides )
n² = 4 ( take square root of both sides )
n = ± 
= ± 2
The number is - 2 or 2
Answer:
x+.8x=27
1.8x=27
x=15
4/5(15)=12
So 15 and 12
Step-by-step explanation:
