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agasfer [191]
3 years ago
5

What expression can be used for estimating 868 divided by 28? Pls help me Thanks

Mathematics
1 answer:
horrorfan [7]3 years ago
7 0
868 is almost 870. 28 is almost 30.

870 / 30 = 29

So 868 / 28 is approximately 29. 
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3. A cone has a heighth and a base with radius r. You want to change the cone so its volume is tripled. What is the new height i
Sphinxa [80]

Answer:

Hence the new height  is 3 times the original height .(h1=3h)

Step-by-step explanation:

Given:

A cone with  has height and base with radius r .

To Find:

What is new height

Solution:

Consider as cone with height h base radius r, and volume v

Here given that only height changes for the cone  i.e. r remains the unchanged or same or constant

The volume for a regular cone is given by ,

V=pie*r^2*h/3

Here V is directly proportional to h i.ee pie ,3 and r being constant

V=K*h

i.e V/h=constant

V1 and h1 are new dimensions for new cone

V/h=V1/h1

Here V1=3V

So V/h=3V/h1

1/h=3/h1

i.e  h1=3h

Hence the height  is 3 times the original height .

4 0
3 years ago
-4+6y=16<br> Change to slope (intercept)
hichkok12 [17]
*here is step by step*
(Remember to add the 'x' to the slope)

-4x+6y=16

6y=4x+16

y= 4/6x + 2.66

The complete answer is:
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7 0
3 years ago
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earnstyle [38]
So I'm guessing that the x2 is your way of saying 2 is the exponent right? In that case the equation would be 8x^2 + 12x
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SashulF [63]

Answer:

yes

Step-by-step explanation:

0.04 is equal to 0.0400

0.0530

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