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3 years ago

The graph of r = -3 + 5cos theta is symmetric about the __________.

Mathematics

2 answers:

Drupady [299]3 years ago

8 0

I believe it it will be the across the y axis

Natasha_Volkova [10]3 years ago

5 0

Answer:

B.) x-axis only

I just took the test and that was the right answer.

Step-by-step explanation:

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The area of a triangle is found by the formula A = 1/2bh

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4 years ago

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How do you sovle 2x+2y=18 6x+y=39

Aleonysh [2.5K]

$\begin{cases} 2x+2y=18 \\ 6x+y=39 \end{cases} \\ \\ W=\left|\begin{array}{ccc}2&2\\6&1\end{array}\right| \ W_{x}=\left|\begin{array}{ccc}18&2\\39&1\end{array}\right| \ W_{y}=\left|\begin{array}{ccc}2&18\\6&39\end{array}\right| \\ \\ W=\left|\begin{array}{ccc}2&2\\6&1\end{array}\right|=2*1-6*2=2-12=-10 \\ \\ W_{x}=\left|\begin{array}{ccc}18&2\\39&1\end{array}\right|=18*1-2*39=-60 \\ \\ W_{y}=\left|\begin{array}{ccc}2&18\\6&39\end{array}\right|=2*39-6*18=-30$

$x= \frac{W_{x}}{W} = \frac{-60}{-10}=6 \\ \\ y= \frac{W_{y}}{W} = \frac{-30}{-10}=3$

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3 years ago

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How to slove -6x-2y-6

Alexeev081 [22]

Answer: x=-3x-3 y=-1/3-6

Step-by-step explanation:

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3 years ago

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Step-by-step explanation:

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The volume of a cylinder varies jointly with the square of its radius and with its height: Cylinder A has a volume of 254.34 cub

adelina 88 [10]

Answer:

The volume of the cylinder B is 251.2 cubic inches.

Step-by-step explanation:

Given : The volume of a cylinder varies jointly with the square of its radius and with its height: Cylinder A has a volume of 254.34 cubic inches and has a radius of 3 inches and a height of 9 inches.

To find : What is the volume of cylinder B, which has a radius of 4 inches and a height of 5 inches?

Solution :

The volume of a cylinder varies jointly with the square of its radius and with its height i.e. the volume is

$V=k r^2h$