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981

+295

Probability - Think About it

A box contains six cards. Three of the cards are black on both sides, one card is black on one side and red on the other, and two of the cards are red on both sides. You pick a card uniformly at random from the box and look at a random side. Given that read more ..

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TheMathCoder Apr 26, 2018

1071

+295

Complementary Probability

There is a machine with 8 toys in it that each cost between 25 cents and 2 dollars, with each toy being 25 cents more expensive than the next most expensive one. Each time Sam presses the big red button on the machine, the machine randomly selects one of read more ..

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TheMathCoder Apr 26, 2018

-1

1713

Help

Let $f$ be defined by \[f(x) = \left\{ \begin{array}{cl} 3-x & \text{ if } x \leq 3, \\ -x^3+2x^2+3x & \text{ if } x>3. \end{array} \right.\]Calculate $f^{-1}(0)+f^{-1}(6)$.

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Guest Apr 26, 2018

464

A circle with radius r, is inside an equilateral triangle, with sides x cm

A circle with radius r, is inside an equilateral triangle, with sides x cm
The circumference of the circle touches each side of the triangle
The area of the circle is 100 cm^2
Work out the value of x read more ..

Guest Apr 26, 2018

970

+295

Counting with Restrictions

Suppose that . For example, . For how many distinct integers does have exactly three distinct elements?

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TheMathCoder Apr 26, 2018

895

+295

Basic Probability with Combinations

We roll a fair 6-sided die 5 times. What is the probability that we get a 1 or a 2 in exactly 3 of the 5 rolls?

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TheMathCoder Apr 26, 2018

-1

848

+59

Two cards are drawn without replacement from a standard deck of 52 cards.

Two cards are drawn without replacement from a standard deck of 52 cards. What is the probability that one of the cards is red and the other is black, and are these events independent?
26/51; no, they are dependent events
13/51; no, they read more ..

hayleeirene Apr 26, 2018

-1

2694

+59

Consider two events such that P(A) = , P(B) = , and P(A ∩ B) =

Consider two events such that P(A) = 1/4 , P(B) = 2/3 , and P(A ∩ B) = 1/5 . Are events A and B independent events?

Yes, they are independent because P(A) ⋅ P(B) = P(A ∩ B)
No, they are dependent because P(A) ⋅ P(B) read more ..

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hayleeirene Apr 26, 2018

982

if anyone can hlp me plz A cube-shaped gift is 11 centimeters long. What is the least amount of wrapping paper you need to wrap the gift?

if anyone can hlp me plz

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Guest Apr 26, 2018

-1

1539

+59

At an amusement park, the probability that a child eats a hot dog and drinks

At an amusement park, the probability that a child eats a hot dog and drinks a soda pop is 0.38. The probability that a child eats a hot dog is 0.61, and the probability that a child drinks soda pop is 0.89. What is the probability (rounded to the nearest read more ..

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hayleeirene Apr 26, 2018

419

Anyone I need some help with this problem.

Consider two events such that P(A) =3/5, P(B) =4/7, and P(A ∩ B) = 12/35. Are events A and B independent events?

A:Yes, they are independent because P(A) ⋅ P(B) = P(A ∩ B)
B:No, they are dependent because P(A) read more ..

Guest Apr 26, 2018

570

I am little stuck.

On any particular Saturday evening, the probability that Jenna will go to the movies and go for coffee is 1/4,The probability that she will go for a coffee 5/7, given that she has gone to the movies, is . What is the probability that Jenna will go read more ..

Guest Apr 26, 2018

446

I am lost can anyone help me,please? :)

A two-way frequency table is shown below that displays the relationship between television technology type and television size sold at a local retail outlet. Store managers took a sample of 90 people and recorded the following results:

read more ..

Guest Apr 26, 2018

2670

+845

x^2 - 9y^2 = 0 where x > 0 and y > 0

x^2 - 9y^2 = 0 where x > 0 and y > 0
work out the ratio of x : y

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YEEEEEET Apr 26, 2018

836

+2448

Please help, ty!!

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RainbowPanda Apr 26, 2018

988

+2448

Help please <3

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RainbowPanda Apr 26, 2018

1073

+2448

Please help asap

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RainbowPanda Apr 26, 2018

980

Help ASAP.

Mr. Rodriguez asked 60 randomly chosen students from each grade level at Willowbrook School about their favorite types of reading materials. Of those 60 students, 12 chose science fiction. Mr. Rodriguez used the data to draw the inference that about 20% read more ..

Guest Apr 26, 2018

775

+196

image is question

help

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sangangsx Apr 26, 2018

985

+196

image is question hellpp meee

help

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sangangsx Apr 26, 2018

1121

+1836

Logarithm question for algebra 2

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Mellie Apr 26, 2018

2825

Help

1. The graph of the equation $y = \frac{x}{x^3 + Ax^2 + Bx + C}$, where $A,B,C$ are integers, is shown below. Find $A + B + C$.

2. \[f(x) read more ..

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Guest Apr 26, 2018

836

+2448

Please help, ty!

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RainbowPanda Apr 26, 2018

523

I need serious help with this anyone

A researcher wishes to use an observational study to determine the proportion of drivers who approach an intersection while wearing their seat belt, depending on how many passengers are in the car. The researcher stays hidden, using cameras and sensors, read more ..

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Guest Apr 26, 2018

666

Anyone can help

A scientist has a hypothesis that as the number of police cars is increased on a roadway, the proportion of cars speeding decreases. He finds that at police car level X1 (one police car per 100 miles), the proportion of cars speeding is p=0.83 . read more ..

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Guest Apr 26, 2018

All Questions ⁺⁰237722 Questions

Probability - Think About it

Complementary Probability

Help

A circle with radius r, is inside an equilateral triangle, with sides x cm

Counting with Restrictions

Basic Probability with Combinations

Two cards are drawn without replacement from a standard deck of 52 cards.

Consider two events such that P(A) = , P(B) = , and P(A ∩ B) =

if anyone can hlp me plz A cube-shaped gift is 11 centimeters long. What is the least amount of wrapping paper you need to wrap the gift?

At an amusement park, the probability that a child eats a hot dog and drinks

Anyone I need some help with this problem.

I am little stuck.

I am lost can anyone help me,please? :)

x^2 - 9y^2 = 0 where x > 0 and y > 0

Please help, ty!!

Help please <3

Please help asap

Help ASAP.

image is question

image is question hellpp meee

Logarithm question for algebra 2

Help

Please help, ty!

I need serious help with this anyone

Anyone can help

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