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musickatia [10]
3 years ago
10

Please help ASAP!!!! Will give brainliest!!!

Mathematics
1 answer:
ElenaW [278]3 years ago
5 0

Answer: 0

Step-by-step explanation: it said round to the nearest hundredth when you just need 0.21 so 0.21 rounded to the nearest hundredth is going to be 0.

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Each cone of the hourglass has a height of 12 millimeters. The total height of the sand within the top portion of the hourglass
Harman [31]

The solution would be like this for this specific problem:

Volume of a cylinder = pi * r^2 * h 

Volume of a cone = 1/3 * pi * r^2 * h 

Total Height = 47

Height of the cone = 12

Height of the cylinder = 35

If the top half is filled with sand, then:

volume (sand) = pi * 4^2 * 36

volume (cone) =  1/3 * pi * 4^2 * 12

Total volume = 1960.353816 cubic millimeters

353816 / (10 * pi) = 62.4 seconds.

It will take 62.4 seconds until all of the sand has dripped to the bottom of the hourglass.

7 0
2 years ago
I need help on this 3,4,and 2 help me solve one please
Mrrafil [7]

3) 12 divided by 3= 4

4 x 2= 8

4 0
3 years ago
What is 64x4 pls help me
Klio2033 [76]

Answer:

256

Step-by-step explanation:

64*4

(60*4)+(4*4)

240+16

256

you could also take a different approach--

64=4^3

4^3*4=4^4

4^4=16^2=256

6 0
3 years ago
Read 2 more answers
The functions f(x) and g(x) are described below: f(x) = 7x + 9 g(x) = 7x −4 The graph of g(x) is obtained by shifting down the g
Slav-nsk [51]
Correct Answer:
Option A

Solution:

f(x) = 7x + 9
g(x) = 7x - 4

We can re-write g(x) as:

g(x) = 7x + 9 - 13

Since 7x+9 is equal to f(x), we can write:

g(x) = f(x) - 13

This relation shows that g(x) is obtained by shifting f(x) 13 units vertically down. So the correct answer is option A.
6 0
3 years ago
The denominator of a fraction exceeds the numerator by 7. If 3 is added to the numerator and 1 is subtracted from the denominato
Elodia [21]
9/16 is the original fraction. 9+3 = 12 and 16-1 =15. 12/15 = 4/5
3 0
3 years ago
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