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3 years ago

Please help me! I will mark you brainliest!

Mathematics

1 answer:

Masja [62]3 years ago

5 0

Answer:

Second option is the correct choice.

Step-by-step explanation:

$k=6\quad and \quad E(X)=\frac{-7\:\:}{15}$

Regards: Umer

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The probability of an event is 3/10 . What are the odds of the same event?

kozerog [31]

Answer:

D. $\frac{3}{7}$

Step-by-step explanation:

We have been given that the probability of an event is 3/10.

To find the odds of the same event we will use formula:

$\text{Odds of an event}=\frac{\text{Probability of the event}}{\text{1-Probability of the event}}$

$\text{Odds of the event}=\frac{\frac{3}{10}}{1-\frac{3}{10}}$

$\text{Odds of the event}=\frac{\frac{3}{10}}{\frac{1*10}{10}-\frac{3}{10}}$

$\text{Odds of the event}=\frac{\frac{3}{10}}{\frac{10-3}{10}}$

$\text{Odds of the event}=\frac{\frac{3}{10}}{\frac{7}{10}}$

Dividing a fraction with another fraction is same as multiplying the 1st fraction by the reciprocal of second fraction.

$\text{Odds of the event}=\frac{3}{10}\times \frac{10}{7}$

$\text{Odds of the event}=\frac{3}{7}$

Therefore, the odds of the same event is $\frac{3}{7}$ and option D is the correct choice.

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3 years ago

I need the answers to this guys please help

Anvisha [2.4K]

C. 660 ft
If you multiply 3 by 22, you get 66, and multiply 10 by 66 and get 660.

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3 years ago

Find the measures of the angles of a right triangle were one of the two acute angles measures eight times the other.

Zina [86]

Notice the picture

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3 years ago

Solve the problem.

andrezito [222]

Answer: 80,000

Step-by-step explanation:

Plug in 50,000 where the x are and then just solve from there

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3 years ago

To save for a car when he turns 18, Pascale deposited $500 each year into a savings account with a 7.5% interest rate compounded

Deffense [45]

Fv=500×(((1.075)^(5)−1)
÷(0.075)×(1.075))

Fv=3,122.01

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3 years ago

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