2 years ago

Find the exact value of each.

Mathematics

1 answer:

FrozenT [24]2 years ago

7 0

Answer:

sin (20) = - 2 $\sqrt{10}$ / 7

Step-by-step explanation:

1- Find the trigonometric values

Hope this helps :)

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A Nevada roulette wheel had 38 pockets, labeled as 0 00 1 2 3 ... 35 36. One bet is single number. If you bet $1 on a number (an

slavikrds [6]

Answer:

-0.0526

Step-by-step explanation:

Let X be the random variable denoting the net gain(in dollars) for a single trial(one bet).

Assuming that each number in the wheel is equally likely, probability of the outcome being a victory is $\frac{1}{38}$ and probability of failure is $\frac{37}{38}$ . For a win, X takes value 35 and for a loss X takes value -1. So the model is,

$P(X=35) = \frac{1}{38}$

$P(X=-1) = \frac{37}{38}$

$P(X=i) = 0 \;if\; i \neq 38, i\neq -1$

The mean for one bet is $E(X) = \sum xP(X=x) = 35\times\frac{1}{38} - 1\times\frac{37}{38} = -0.0526$

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3 years ago

How to get 14 using four fours

Len [333]

Answer:

Step-by-step explanation:

$4 \times (4 - .4) -. 4$

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2 years ago

What is the value of x?

Dafna11 [192]

Answer:

28!

Step-by-step explanation:

soooooo its a 90 degree angle

2x+1+33=90

2x+34=90

-34

2x=56

x=28

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2 years ago

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Kira's store collects 5% sales tax on every item sold. If she collected $22 in sales tax, what was the cost of the items her sto

Hatshy [7]

Answer:

Step-by-step explanation:

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3 years ago

Find the area of the blue sector of the circle. Round to the nearest hundredth.

Varvara68 [4.7K]

A diagram must be associated with the question above. Based on what I researched, this is what I got.

The blue sector of the circle is 120 degrees.

area of the blue sector = 1/3 of pi * 2^2
= 4.19cm2

I hope this answer helps.

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3 years ago