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PLS HELP :( WILL GIVE BRAINLIEST+ 25 POINTS

babunello [35]

Answer:

The answer is A i just took the test and made a 100

Step-by-step explanation:

6 0

4 years ago

What is P(tails ) P(tails)start text, P, left parenthesis, t, a, i, l, s, end text, right parenthesis? If necessary, round your

blagie [28]

Question is not clear enough

I'll assume the question is this:

A fair coin has 2 sides (heads and tails) that are equally likely to show when the coin is flipped. What is P(tails)?

Answer:

P(tails) = 0.5

Step-by-step explanation:

Given:

Number of sides = 2

Number of head = 1

Number of tails = 1

Let P(Tail) = Probability of obtaining a tail when the coin is flipped.

P(Tails) is calculated as follows;

P(Tails) = Number of Tails/Total Number of Sides

Substitute in the values of Number of Tails and Total Number of Sides

P(Tails) = 1/2

P(Tails) = ½

P(Tails) = 0.5

Hence, the probability of obtaining a tail provided that the two sides of the coin are equally likely to show when the coin is flipped is 0.5

4 0

3 years ago

Probability distribution

IRINA_888 [86]

To find out the percentage, just like with the average, you need to add up all the numbers which is 60. Now you have to find the probability of 2 cars in a line, you would have to divide, 16/60, Which is about .27, now you have to convert to percentage, which is 27%

7 0

3 years ago

let sin(θ) =3/5 and tan(y) =12/5 both angels comes from 2 different right trianglesa)find the third side of the two tringles b)

statuscvo [17]

In a right triangle, we haev some trigonometric relationships between the sides and angles. Given an angle, the ratio between the opposite side to the angle by the hypotenuse is the sine of this angle, therefore, the following statement

$\sin (\theta)=\frac{3}{5}$

Describes the following triangle

To find the missing length x, we could use the Pythagorean Theorem. The sum of the squares of the legs is equal to the square of the hypotenuse. From this, we have the following equation

$x^2+3^2=5^2$

Solving for x, we have

$\begin{gathered} x^2+3^2=5^2 \\ x^2+9=25 \\ x^2=25-9 \\ x^2=16 \\ x=\sqrt[]{16} \\ x=4 \end{gathered}$

The missing length of the first triangle is equal to 4.

For the other triangle, instead of a sine we have a tangent relation. Given an angle in a right triangle, its tanget is equal to the ratio between the opposite side and adjacent side.The following expression

$\tan (y)=\frac{12}{5}$

Describes the following triangle

Using the Pythagorean Theorem again, we have

$5^2+12^2=h^2$

Solving for h, we have

$\begin{gathered} 5^2+12^2=h^2 \\ 25+144=h^2 \\ 169=h^2 \\ h=\sqrt[]{169} \\ h=13 \end{gathered}$

The missing side measure is equal to 13.

Now that we have all sides of both triangles, we can construct any trigonometric relation for those angles.

The sine is the ratio between the opposite side and the hypotenuse, and the cosine is the ratio between the adjacent side and the hypotenuse, therefore, we have the following relations for our angles

$\begin{gathered} \sin (\theta)=\frac{3}{5} \\ \cos (\theta)=\frac{4}{5} \\ \sin (y)=\frac{12}{13} \\ \cos (y)=\frac{5}{13} \end{gathered}$

To calculate the sine and cosine of the sum

$\begin{gathered} \sin (\theta+y) \\ \cos (\theta+y) \end{gathered}$

We can use the following identities

$\begin{gathered} \sin (A+B)=\sin A\cos B+\cos A\sin B \\ \cos (A+B)=\cos A\cos B-\sin A\sin B \end{gathered}$

Using those identities in our problem, we're going to have

$\begin{gathered} \sin (\theta+y)=\sin \theta\cos y+\cos \theta\sin y=\frac{3}{5}\cdot\frac{5}{13}+\frac{4}{5}\cdot\frac{12}{13}=\frac{63}{65} \\ \cos (\theta+y)=\cos \theta\cos y-\sin \theta\sin y=\frac{4}{5}\cdot\frac{5}{13}-\frac{3}{5}\cdot\frac{12}{13}=-\frac{16}{65} \end{gathered}$

4 0

1 year ago

3 x 10 + 2 x 1 + 6 x 1/100 +4 x 1/1000 is the expanded form of which decimal?

lukranit [14]

Answer:

32.064

Step-by-step explanation:

7 0

3 years ago