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3 years ago

Which set of rectangular coordinates describes the same location as the polar coordinates (4,pi)?

Mathematics

2 answers:

Nuetrik [128]3 years ago

8 0

Answer:

(-4,0)

Step-by-step explanation:

Nataly [62]3 years ago

6 0

$\bf (\stackrel{r}{4}~,~\stackrel{\theta }{\pi })\qquad \begin{cases} x=&rcos(\theta )\\ &4cos(\pi )\\ &4(-1)\\ &-4\\ y= &rsin(\theta )\\ &4sin(\pi )\\ &4(0)\\ &0\\ \end{cases}\qquad \implies (\stackrel{x}{-4}~,~\stackrel{y}{0})$

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Find the product of the monomial and polynomial xyz*(2x+3y^2-3z^2)

marissa [1.9K]

Answer:

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Step-by-step explanation:

First you must distribute:

xyz(2x) + xyz(3y^2) + xyz(-3z^2)

Then simplify:

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And finally simplify each term:

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2 years ago

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marin [14]

Step-by-step explanation:

The equation 0.5s+ 9.99=30 describes the situation.

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8 0

2 years ago

Please answer correctly !!!!! Will mark brainliest answer !!!!!!!!!!

AnnZ [28]

Answer:

type 2 in the first box,

13/4 in the second box, and

-9/8 in the third one

Step-by-step explanation:Notice that you are asked to write the following quadratic expression in vertex form, so you need to find the "x" value of the vertex, and then the "y" value of the vertex:

$x_{vertex}= -b/2a$

Which in our case is: -13/4

and the value of the y for the vertex is obtained using the functional expression when x equals -13/4:

$f(-13/4)= -9/8$

Then your expression for this quadratic should be:

$f(x)=2\,(x+\frac{13}{4} )^2+(-\frac{9}{8})$

Then type 2 in the first box, 13/4 in the second box, and -9/8 in the third one

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2 years ago

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spin [16.1K]

An expression is just like an equation but without the equal sign.

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3 years ago

This circle is centered at the orgin, and the length of it’s radius is 5. What is the ewuation of the circle?

pav-90 [236]

$\bf \textit{equation of a circle}\\\\ 
(x- h)^2+(y- k)^2= r^2
\qquad 
center~~(\stackrel{0}{ h},\stackrel{0}{ k})\qquad \qquad 
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\\\\\\
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2 years ago

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