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igor_vitrenko [27]
3 years ago
12

The volume of a cylinder is 1323pi cmcubed. The radius of the base of the cylinder is 7 cm. What is the height of the​ cylinder?

The height of the cylinder is nothing cm. ​(Simplify your​ answer.)
Mathematics
1 answer:
Taya2010 [7]3 years ago
4 0
V of cylinder = πr²h
h=V /(πr²)
h=27/π -exact value
h=1323/(3.14*(7)²)= 8.6 cm - approximate value
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Victor writes 10 more poems than ann.Ann writes 10 poems. How many poems does victor writes?
tino4ka555 [31]

Victor writes 20 poems

<em><u>Solution:</u></em>

Given that victor writes 10 more poems than Ann

Also given that Ann writes 10 poems

To find: number of poems written by Victor

<em><u>From given information, we can frame a equation as:</u></em>

number of poems written by Victor = 10 more poems than Ann

number of poems written by Victor = 10 + number of poems written by Ann

Substituting the given , number of poems written by Ann = 10 , we get,

number of poems written by Victor = 10 + 10 = 20

Thus victor writes 20 poems

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If m∠JKP=3r+12 and m∠2=4r−2, what is ∠JKN?
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The answer seems to be 108
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Write an equation of a line through the given points (5,0);(7,6)
KATRIN_1 [288]
Y - y1 = m( x - x1); where m = (y2 - y1)/(x2 - x1);
We have m =  (6-0)/(7-5) = 6 / 2 = 3 ;
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Finally: y = 3x - 15.
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Sally went school shopping she had a budget of 10.00 she bought a pen for 1.75 and a paper for 1.33 her change was 6.08 how much
irakobra [83]

Answer:

$0.84

Step-by-step explanation:

1. find total cost of both the pen and paper

  • $1.75 + $1.33 = $3.08

2. find the amount Sally spent

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3. find cost of ruler

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Find two rational expressions a / b and c / d that produce the result x − 1 / x2 when using the following operations. Answers
Mars2501 [29]

Answer:

a) Let \frac{a}{b}=\frac{-1}{x^2}, \text{ and } \frac{c}{d}=\frac{1}{x}.

Observe that

\frac{a}{b}+\frac{c}{d}=\frac{-1}{x^2}+\frac{1}{x}=\frac{-x+x^2}{x^3}=\frac{x(x-1)}{xx^2}=\frac{x-1}{x^2}

b)

Let \frac{a}{b}=\frac{1}{x}, \text{ and } \frac{c}{d}=\frac{1}{x^2}.

Observe that

\frac{a}{b}-\frac{c}{d}=\frac{1}{x}-\frac{1}{x^2}=\frac{x^2-x}{x^3}=\frac{x(x-1)}{xx^2}=\frac{x-1}{x^2}

c)

Let \frac{a}{b}=\frac{x-1}{x}, \text{ and } \frac{c}{d}=\frac{1}{x}.

Observe that

\frac{a}{b}*\frac{c}{d}=\frac{x-1}{x}*\frac{1}{x}=\frac{(x-1)1}{x*x}=\frac{x-1}{x^2}

d)

Let \frac{a}{b}=\frac{x-1}{x}, \text{ and } \frac{c}{d}=\frac{x}{1}.

Observe that

\frac{a}{b}\div\frac{c}{d}=\frac{x-1}{x}\div\frac{x}{1}=\frac{x-1}{x}*\frac{1}{x}=\frac{x-1}{x^2}

3 0
3 years ago
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