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2 years ago

Find the least common denominator for these two rational expressions -8/x^2 -1/5x

1 answer:

6 0

If you look at both denominators you can see that they both have an x , the only difference is that one has x^2 and the other one has a 5. therefore we multiply them both and get 5x^3. The answer is 5x^3

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What is the volume of the cone to the nearest cubic millimeter? (Use π = 3.14)

katrin2010 [14]

Answer:

V = 183.16666666667 m3

Step-by-step explanation:

https://www.calculatorsoup.com/calculators/geometry-solids/cone.php

This calculator might help with other problems you have like this one and no this isn't a scam

4 0

2 years ago

B) The number of volume of a cylinder is half of its number of the total surface area.

faust18 [17]

Answer:

$V=179.6cm^3$

Step-by-step explanation:

the volume of a cylinder is given by:

$V=\pi r^2h$

where r is the radius and h is the height.

and the surface area:

$SA=2\pi r^2+2\pi rh$

the first term is the area of the circles and the second term is the area of the body.

since "The number of volume of a cylinder is half of its number of the total surface area." we will have that:

$V=\frac{1}{2}SA$

substitutig the equivalent expressions on each side:

$\pi r^2 h = \frac{1}{2} (2\pi r^2+2\pi r h)$

and we simplify and solve for the height (since is the value we don't know of the cylinder):

$\pi r^2 h = \pi r^2+\pi r h\\\pi r^2h-\pi rh=\pi r^2\\h(\pi r^2-\pi r)=\pi r^2\\h=\pi r^2/(\pi r^2-\pi r)$

we substitute the value of the radius $r=7cm$ , and we get:

$h=\pi (7cm)^2/(\pi (7cm)^2-\pi (7cm))\\h=153.938/(153.938-21.991)\\h=153.938/131.947\\h=1.1666cm$

thus the volume is:

$V=\pi r^2h$

$V=\pi (7cm)^2(1.1666cm)\\V=179.6cm^3$

3 0

2 years ago

Read 2 more answers

What inequality is shown by the graph?

Gwar [14]

Step-by-step explanation:

2x - 10y > -20

=> x - 5y > -10

or x - 5y +10 > 0

4 0

2 years ago

Select the graph that does not represent two quantities in a proportional relationship.

Lerok [7]

The answer is b since it does not touch the origin! (0,0)

5 0

2 years ago

ASAAPPP!! Which of the following exponential equations could be represented by the table below?

Ne4ueva [31]

Answer:

Option C

Step-by-step explanation:

Just took the quiz and it was right.

7 0

3 years ago

Read 2 more answers