3 years ago

Chapter 15 probability

Mathematics

1 answer:

denpristay [2]3 years ago

4 0

What do you mean by that?

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Find tan2θ if θ terminates in Quadrant IV and cosθ =3/5 .

Liula [17]

Answer:

The answer to your question is $\frac{-8}{3}$

Step-by-step explanation:

Data

cos Ф = 3/5

tan2Ф = ?

Quadrant IV

Process

1.- Remember that tanФ = $\frac{Opposite side}{Adjacent side}$ and cos Ф = $\frac{adjacent side}{hypotenuse}$

then, adjacent side = 3 and hypotenuse = 5

2.- Calculate opposite side

O² = h² - a²

O² = 5² - 3²

O² = 25 - 9

O² = 16

O = 4

3.- Calculate the tan 2Ф

tan 2Ф = 2( $\frac{-4}{3}$ ) The opposite side is negative in the fourth

quadrangle

tan 2Ф = $\frac{-8}{3}$

6 0

4 years ago

COULD U GUYS HELP! and tell me how u did it

viktelen [127]

Answer:

Step-by-step explanation:

In negative smaller numbers are greater

7 0

3 years ago

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F(x)=-2x+15 from x=0 to x=3 <br> Find the average rates of change

Scrat [10]

Answer:

see below

Step-by-step explanation:

6 0

4 years ago

Jake has two pet guinea pigs named fluffy and scruffy. Fluffy is8 1/8 inches long. Scruffy is 10 1/4 inches long. How much longe

miss Akunina [59]

Answer:

Scruffy is $2\frac{1}{8}$ inches longer than Fluffy.

Step-by-step explanation:

Length of Scruffy = $10\frac{1}{4}$ inches

Length of Fluffy = $8\frac{1}{8}$ inches

We have to calculate how much Scruffy is longer than Fluffy.

Difference of their lengths = $10\frac{1}{4}-8\frac{1}{8}$

= (10 - 8) + $(\frac{1}{4}-\frac{1}{8})$

= 2 + $(\frac{2-1}{8})$

= 2 + $\frac{1}{8}$

= $2\frac{1}{8}$ inches

Therefore, Scruffy is $2\frac{1}{8}$ inches longer than Fluffy.

5 0

3 years ago

What is the 9th root of -30

yuradex [85]

-1.45923280296 is correct

4 0

3 years ago

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