All Questions ⁺⁰230542 Questions

0

985

1

help please

An urn consists of 20 red balls and 30 green balls. We choose 10 balls at random from the urn. The sampling is done without replacement (repetition not allowed).
a. What is the probability that there will be exactly 4 red balls among the chosen balls?
b. read more ..

Guest Mar 7, 2020

0

2068

4

Help

Dogs in the GoodDog Obedience School win a blue ribbon for learning how to sit, a green ribbon for learning how to roll over, and a white ribbon for learning how to stay. There are $100$ dogs in the school. $\bullet$ $62$ have blue ribbons, $55$ have green read more ..

Guest Mar 7, 2020

0

1704

0

+1993

Use the data that you have for the air-filled tube.

Use the data that you have for the air-filled tube.

Make a drawing of the standing wave in the tube when you have two, three, and four nodes or peaks. read more ..

jjennylove Mar 7, 2020

0

467

2

permutaions maybe?

There are 15 gymnasts in the Olympic women's competition, including4 Americans. The gold medal goes to first place, silver to second, and bronze to third. In how many ways can the medals be awarded to three of the gymnasts, if exactly one read more ..

ElectricPavlov ●●

Guest Mar 7, 2020

0

837

1

please help

Cody,Liam and Molly have 60 stickers in total. Cody has half as many stickers as Liam. Molly has three times as many stickers as Cody. How many stickers does Cody have

ElectricPavlov ●

Guest Mar 7, 2020

0

342

1

pls help meh

If we let f(n) denote the sum of all the positive divisors of the integer n, how many integers i exist such that and ?

Guest Mar 7, 2020

0

526

0

Each of six randomly selected cola drinkers is given a glass containing cola S and one containing cola F. The glasses are identical in appea

Each of six randomly selected cola drinkers is given a glass containing cola S and one containing cola F. The glasses are identical in appearance except for a code on the bottom to identify the cola. Suppose there is actually no tendency among cola drinkers read more ..

Guest Mar 7, 2020

Mar 6, 2020

0

576

1

need help please

In a standard deck of 52 cards, there are four suits (clubs, hearts, diamonds and spades) and 13 cards of each suit. what is the probability of randomly selecting two cards, which turn out to be the same suit

Guest Mar 6, 2020

0

1506

3

Please please help!

The data in the table shows a sinusoidal relationship between the number of seconds an object has been moving and its velocity v(x), measured in centimeters per second.

x 10 20 30 40 50 60 70 80 90 100 110 120 v(x) 65.9 49.9 30.1 read more ..

Guest Mar 6, 2020

0

455

1

help

An urn contains nine red and one blue balls. A second urn contains one red and five blue balls. One ball is removed from each urn at random and without replacement, and all of the remaining balls are put into a third urn. What is the probability that a read more ..

Guest Mar 6, 2020

0

452

1

help me pls

Question at:
https://ibb.co/kDNxq1n

Guest Mar 6, 2020

0

2712

6

hAlPsSsS

I have a bag that contains $6$ nickels and $5$ pennies. I draw coins from the bag at random, without replacement. Find the probability that after drawing $4$ coins, I have removed at most $2$ pennies from the bag.

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Guest Mar 6, 2020

+13

643

1

+1072

Help Please!!!

Let n and k be positive integers such that

read more ..

SpongeBobRules24 Mar 6, 2020

0

645

1

three integers

The sum of three integers is 211. The sum of the first and second integer exceeds the third by 39. The third integer is 23 less than the first. Find the three integers.

Guest Mar 6, 2020

0

673

1

725 tickets were sold for a game for a total of $1325 if adult tickets were sold for $2.50 and children's tickets sold for one dollar how ma

725 tickets were sold for a game for a total of $1325 if adult tickets were sold for $2.50 and children's tickets sold for one dollar how many of each kind of ticket were sold

Guest Mar 6, 2020

0

512

2

help

Let A, B, C be points on circle O such that AB is a diameter, and CO is perpendicular to AB. Let P be a point on OA, and let line CP intersect the circle again at Q. If OP=20 and PQ=7, find r^2, where r is the radius of read more ..

Guest Mar 6, 2020

0

1246

1

help

A penny is dropped off the Empire State Building, which is 1250 feet tall. If the penny’s pathway can be modeled by the equation h= -16t^2+1250, how long would it take the penny to strike a 6 foot tall person?

Guest Mar 6, 2020

0

613

1

please help!!!

Joe can cut and split a cord of firewood in 3 fewer hours than Dwight can. When they work together, it takes them 2 hours. How long would it take each of them to do the job alone?

Guest Mar 6, 2020

0

2943

1

please help

A survey of athletes at a high school is conducted, and the following facts are discovered: 29% of the athletes are football players, 63% are basketball players, and 24% of the athletes play both football and basketball. An athlete is chosen at random from read more ..

Guest Mar 6, 2020

0

537

2

Help

Three of the four vertices of a rectangle are ,(5, 11) (16, 11) and .(16, -2) What is the area of the intersection of this rectangular region and the region inside the graph of the equation ? Express your answer read more ..

Guest Mar 6, 2020

0

713

0

+614

American Flag question

Useful Information:
The doors toward the bottom of the photograph are 80 inches tall.
One story of the building has a height of 120 inches. read more ..

xxJenny1213xx Mar 6, 2020

0

567

2

Express as a common fraction.

Express as a common fraction.

geno3141 ●●

Guest Mar 6, 2020

0

607

2

What is the maximum possible value of the greatest common divisor of two consecutive terms of the sequence , where ?

What is the maximum possible value of the greatest common divisor of two consecutive terms of the sequence , where ?

Guest Mar 6, 2020

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