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4 years ago

Solve arctan(-sqrt(3))

1 answer:

6 0

We are given with the expression arctan(-sqrt(3)) and asked to evaluate it. In this case, we can use a calculator or the rule of common triangles to answer this question. the value of <span>arctan(-sqrt(3)) is -60. Since negative tan is found in 2nd and 4th quadrant, the angles are 180-60 or 120 degrees and 360-60 or 300 degrees.</span>

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Suppose a and b are independent events if p(a/b)=.25 and p(b)=.6 what is P(AnB)?

Talja [164]

Answer:

0.15

Step-by-step explanation:

<u>Independent Probabilities Formula</u>

P(A | B) = P(A) = P(A ∩ B) ÷ P(B)

P(A | B) = 0.25

P(A) = 0.25

P(B) = 0.6

If P(A) = P(A ∩ B) ÷ P(B)

P(A ∩ B) = P(A) × P(B)

P(A ∩ B) = 0.25 × 0.6

P(A ∩ B) = 0.15

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3 years ago

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Answer:

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3 years ago

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vesna_86 [32]

Answer:

option C

Step-by-step explanation:

Total number of items = 5

Number of items to choose = 2

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3 years ago

Justine ran for 35 minutes on monday, for 1 hour and 10 minutes on Wednesday , and for 1 hour and 15 minutes on friday. How many

Oduvanchick [21]

Answer:

3 hours or 180 minutes

Step-by-step explanation:

This one should be an easy one

First, lets convert everything to units

35 + (1 hour and 10 minutes or 70 minutes) + (1 hour and 15 minutes or 75 minutes) = 35 + 70 + 75 = 180 minutes, or 3 hours.

Hope it helps :)

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2 years ago

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Irina-Kira [14]

Answer:

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