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3 years ago

HELP plS! if sin 0=7/25, find cos0.

Mathematics

2 answers:

kodGreya [7K]3 years ago

8 0

Hey there! :)

Answer:

csc θ = 25/7.

Step-by-step explanation:

Recall that csc, or cosecant, is the reciprocal of sine. Therefore:

If sin θ = 7/25:

Find the reciprocal:

7/25 --> 25/7.

csc θ = 25/7.

g100num [7]3 years ago

6 0

Csc 0= 25/7. Im just using
What ever the guy above me said

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3 years ago

Find the value of y.

Phoenix [80]

$\boxed{y=6\sqrt{3}}$

<h2>Explanation:</h2>

For a better understanding of the problem I've built up two triangles from the given triangular shape. So these two triangles are similar. Therefore, we can solve this problem by using ratios and corresponding sides in this way:

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<h2>Learn more:</h2>

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4 0

3 years ago

If you draw a card with a value of 4 or less from a standard deck of cards, I will pay you 165$ if not your pay me $45. (Aces ar

jekas [21]

Answer: The required expected value is $3.46.

Step-by-step explanation:

Since we have given that

Number of value of 4 or less are

2,3,4

So, there are 12 in numbers.

So, probability would be

$\dfrac{12}{52}$

Since Aces are considered as the highest card in the deck.

So, remaining probability would be

$\dfrac{40}{12}$

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Amount not paid for other case = $45

So, the expected value would be

$\dfrac{12}{52}\times 165-\dfrac{40}{52}\times 45\\\\=\dfrac{1980}{52}-\dfrac{1800}{52}\\\\=\dfrac{180}{52}\\\\=3.46$

Hence, the required expected value is $3.46.

7 0

3 years ago