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3 years ago

5C%3A%20rectangle%20%5C%3A%20%20%5C%5C%20%20%5C%5C%20length%20%3D%2011cm%20%5C%5C%20%20%5C%5C%20width%20%3D%209cm" id="TexFormula1" title="solve \: \\ \\ find \: the \: area \: of \: rectangle \: \\ \\ length = 11cm \\ \\ width = 9cm" alt="solve \: \\ \\ find \: the \: area \: of \: rectangle \: \\ \\ length = 11cm \\ \\ width = 9cm" align="absmiddle" class="latex-formula">

Mathematics

1 answer:

N76 [4]3 years ago

5 0

Area = l ×b

$a = l \times b \\ a = 11 \times 9 \\ a = 99$

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BlackZzzverrR [31]

Answer:

-7x+3y+3

Step-by-step explanation:

(4-5+4)=3

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3 years ago

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Which is a counterexample that shows the statement is false? If you square a number, then the answer is greater than the number.

Iteru [2.4K]

Answer:

A. ( $\frac{1}{2}$ )² = $\frac{1}{2}$ × $\frac{1}{2}$ = $\frac{1}{4}$

Step-by-step explanation:

Answer choice (A) is the counterexample because squaring number $\frac{1}{2}$ results into number $\frac{1}{4}$ which is less than $\frac{1}{2}$ .

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2 years ago

Find the volume of the solid generated when R (shaded region) is revolved about the given line. x=6−3sec y, x=6, y= π 3, and

Dmitrij [34]

Answer:

$V=9\pi\sqrt{3}$

Step-by-step explanation:

In order to solve this problem we must start by graphing the given function and finding the differential area we will use to set our integral up. (See attached picture).

The formula we will use for this problem is the following:

$V=\int\limits^b_a {\pi r^{2}} \, dy$

where:

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so the volume becomes:

$V=\int\limits^\frac{\pi}{3}_0 {\pi (3 sec(y))^{2}} \, dy$

This can be simplified to:

$V=\int\limits^\frac{\pi}{3}_0 {9\pi sec^{2}(y)} \, dy$

and the integral can be rewritten like this:

$V=9\pi\int\limits^\frac{\pi}{3}_0 {sec^{2}(y)} \, dy$

which is a standard integral so we solve it to:

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so we get:

$V=9\pi[tan \frac{\pi}{3} - tan 0]$

which yields:

$V=9\pi\sqrt{3}$ ]

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3 years ago

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zhenek [66]

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3 years ago

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fgiga [73]

Answer: 829 3/4 or 829 75/100

Step-by-step explanation:

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