Need help SOON please. I'll be forever grateful. see attached image!

Mathematics

1 answer:

vichka [17]3 years ago

8 0

Ok i cant answer the exact answer cause i don’t have paper put i’ll give you the format
it’s is
y2-y1
———-
x2-x1

that’s is the formula, you take the second y coordinate and subtract it from the first y then you do the second x coordinate and subtract it from the first x coordinate. hope this helps you

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Alenkasestr [34]

Answer:

y = 12

Step-by-step explanation:

set up equation for 'y varies inversely with x': y = k/x

where 'k' is the constant of variation

8 = k/6

therefore, k = 48

value of y when x = 4: y = 48/4; therefore, y = 12

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3 years ago

Identify, graph, and state the symmetries for the polar equation r=2+2sintheta.

IRINA_888 [86]

Answer:

Graph = Cardioid

Axis of symmetry = y-axis

Critical points= $\frac{\pi}{2} , \frac{3\pi }{2}$

Step-by-step explanation:

General equation for this type of cardioid is:

a ± b sinθ

Condition for a cardioid = $\frac{a}{b} = 1$

Axis of symmerty according to the graph of 2 + 2 sinθ is along y-axis.

Critical points:

r = 2 + 2 sinθ ⇒ r = 2(1 + sinθ) ⇒ r' = 2 cosθ

∵derivative of 1 + sinθ = cosθ

For finding critical point the derivative is equal to zero,

2 cosθ = 0 ⇒ cosθ = 0

the value of cosθ is equal to zero at intervals: $\frac{\pi}{2} , \frac{3\pi }{2}$

So, critical points = $\frac{\pi}{2} , \frac{3\pi }{2}$

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3 years ago

What's the possibility of choosing a spade in a deck of 52 cards?

Mashcka [7]

There are 4 suits in a deck of cards: hearts, diamonds, spades, and clubs.
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4 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=%5Cfrac%7B%5Csec%5Cleft%28x%5Cright%29%7D%7B%5Ccos%5Cleft%28x%5Cright%29%7D-%5Cfrac%7B%5Csin%5

DanielleElmas [232]

Answer:

Step-by-step explanation:

First, convert all the secants and cosecants to cosine and sine, respectively. Recall that $csc(x)=1/sin(x)$ and $sec(x)=1/cos(x)$ .