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3 years ago

If a cylinder has a height of 7 inches and a volume of 2908.33 in3 find its diameter

2 answers:

7 0

Heya user

We have over here -

Radius , r= ?

Height , h = 7 inch

Then volume ,= 2πrh

$volume \: \: = 2908.33 \\ \\ 2\pi \: rh \: \: = 2908.33 \\ \\ = > r \: \: = \frac{2908.33}{43.96} \\ \\ = > r \: \: = 64$
So we have Radius 64 approx

so , Diameter , = 128 inch

Makovka662 [10]3 years ago

3 0

The answer should be 23. Not sure if you have multiple choices, or have to show the work, but 23 is the answer.

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Factorize x^2/16+xy+4y^2

lisov135 [29]

Answer:

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Step-by-step explanation:

Recall the formula for the perfect square of a binomial :

$(a+b)^2=a^2+2ab+b^2$

Now, let's try to identify the values of $a$ and $b$ in the given trinomial.

Notice that the first term and the last term are perfect squares:

$\frac{x^2}{16} = (\frac{x}{4} )^2\\4y^2=(2y)^2$

so, we can investigate what the middle term would be considering our $a=\frac{x}{4}$ , and $b=2y$ :

$2\,a\,b=2\,(\frac{x}{4}) \,(2\,y)=x\,y$

Therefore, the calculated middle term agrees with the given middle term, so we can conclude that this trinomial is the perfect square of the binomial:

$(\frac{x}{4} +2\,y)^2$

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3 years ago

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Jobisdone [24]

Answer:

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4^4 + 1/2 step by step

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