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zavuch27 [327]
3 years ago
9

do you think that a negative sign affects whether or not a number is rational number? Use -8/5 an example.

Mathematics
1 answer:
lina2011 [118]3 years ago
5 0

-8/5 is a rational number because in order to be a rational number it must be able to be written as a fraction. -8/5 is a fraction; therefore, the negative does not affect it.

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your friend says that the volume of a sphere with a radius r is four times the volume of a cone with radius r. when is this true
Ierofanga [76]
Volume of a sphere is given by the formula: V_{\circ}=\frac43\pi r^3

If we pull the 4 out front we have, V_{\circ}=4\left(\frac13\pi r^3\right).

Volume of a cone is given by the formula: V_{\triangle}=\frac{1}{3}\pi r^2\cdot h

Notice that if the height of the cone is equal to the radius, V_{\triangle}=\frac13\pi r^2\cdot r

then it's exactly what we see in our volume formula without the 4!
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2 years ago
Tanya is training a turtle for a turtle race. For every 1/6 of an hour that the turtle crawling he can travel 2/23 mile. at what
zavuch27 [327]
So first I hope this helps! But from what I’ve learned in school is that a unit rate pretty much just mean *1... so in words the answers would be 1/6 and hour for every 2/23 miles
8 0
3 years ago
Given: Triangle ABC with AB = 45 and BC = 18.
KengaRu [80]

Answer:

35, 27, and 30

Step-by-step explanation:

5 0
2 years ago
*20 points* Explain two barriers to entry for a new business.
Alex

Answer:

Government regulation, Economies of scale

Step-by-step explanation:

Barriers to entry are obstacles that make it difficult to enter a given market. ...

Government Regulation.

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3 0
2 years ago
Read 2 more answers
The profit y (in dollars) for a company for selling x games is represented by y=32x. Graph the equation. ANSWER BEFORE 11 FOr BO
natulia [17]

Answer:

I guess that we have the linear equation:

y = 32*x

Where y is the profit, and x is the number of games sold.

Then the first step may be doing a table.

Give x different values, then find the value of y.

if x = 0

y = 32*0 = 0

if x = 1, y = 32*1 = 32

if x = 2, y = 2*32 = 64

Then the points:

(0,0) (1,32) and (2, 64) belong to this line, now we need to conect them with a straigth line and its ready.

The graph will be:

8 0
2 years ago
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