All Questions ⁺⁰230697 Questions

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help

Suppose Set A contains 325 elements and the total number elements in either Set A or Set B is 631. If the Sets A and B have 43 elements in common, how many elements are contained in set B?

Guest Feb 20, 2020

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694

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help

Martha types a 4−digit code into a keypad to unlock her car doors. The code uses the numbers 1 and 0. If the digits are selected at random, what is the probability of getting a code with exactly three 0's?

Guest Feb 20, 2020

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587

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+41

A number theory question...

In this problem, a and b are positive integers.
When a is written in base 9, its last digit is 5.
When b is written in base 6, its last two digits are 53.
When a - b is written in base 3, what are its last two digits? Assume read more ..

chenxander Feb 20, 2020

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678

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alg 2

Based on a poll of 1000 residents, a newspaper article claims that 62% of the residents in town favor the development of a recreational park on the west side of town. A community action group interested in preserving the environment claims that 45% of the read more ..

Guest Feb 20, 2020

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580

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Another radical question

A rectangle has a width length of 5 sqrt rt 8 inches and a width of 2sqrt rt 8 inches. What is the perimeter of the rectangle?

Guest Feb 20, 2020

+1

663

3

i really need help!!!

Square ABCD has area 12.25.

E is the intersection of BD and the semicircle of diameter AD.
read more ..

Guest Feb 20, 2020

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418

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Math help,,

A square has a length of 6sqtrt 6 inches. What is the area of the rectangle? It's like a radical question

Guest Feb 20, 2020

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746

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help

She bought 3 types of fruit for a fruit salad. She paid twice as much for blueberries as for oranges, and $1.50 less for strawberries than for blueberries. If the total cost was 12.25 how much did she spend on each fruit?

IsabelleJ761 ●●

Guest Feb 20, 2020

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402

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please help geometry!!!

Let be a trapezoid with bases and Let and and let be a point on side such that Let be the feet of the altitudes from to respectively. read more ..

Guest Feb 20, 2020

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769

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+304

Functions

The graph of is shown below.

\
read more ..

DragonLord Feb 20, 2020

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428

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please help!!!

Given a 5-12-13 right triangle, find the length of the angle bisector from the right angle to the hypotenuse.

Guest Feb 20, 2020

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2255

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I need help really fast!!

In triangle PQR, the side lengths are PQ=9, PR=10, and QR=17. Let X be the intersection of the angle bisector of angle P with side QR, and let Y be the foot of the perpendicular from X to side PR. Compute the length of XY.

Guest Feb 20, 2020

Feb 19, 2020

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812

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physics

I REALLY NEED HELP PLZZ!!!!
How many times could light travel around the circumference of the Earth in 8.6 second? Let the circumference of the Earth be 24,000 miles.

Guest Feb 19, 2020

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593

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+296

Complex Numbers: Pre-Calc

For a complex number find the minimum value of

Thank you!

EpicWater Feb 19, 2020

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477

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help

Dr. Graham currently has two acid solutions. She only has a 60% acid solution and a 20% acid solution in her lab. Dr. Graham needs 30 L of a 50% acid solution to conduct an experiment. How many liters of each solution should she mix together

Guest Feb 19, 2020

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649

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+109

Math Question

cosθ=−3√4 , where π≤θ≤3π2 .
tanβ=34 , where 0≤β≤π2 .
What is the exact value of sin(θ+β) ?

valval2205 Feb 19, 2020

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915

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2 numbers that add to 25 and the quotient is 4. What are the numers??

2 numbers that add to 25 and the quotient is 4. What are the numers??

Guest Feb 19, 2020

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647

1

Help

If it takes me 5 hours to fly to Michigan what is my average speed

Guest Feb 19, 2020

+1

974

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+17

Find the range of the function \[m(x) = \sqrt{x + 5} + \sqrt{20 - x}.\]

Find the range of the function

CCjump21 Feb 19, 2020

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557

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help

A magician shuffles a standard deck of playing cards and allows an audience member to pull out a card, look at it, and replace it in the deck. Two additional people do the same. Find the probability that of the 3 cards drawn, at least 1 is a face card. read more ..

Guest Feb 19, 2020

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540

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math problem

The difference between the age of a mother and her daughter is 21years in the next 10years. The sum of the mother's age and the square root of that of the daughter's is 77years. Find their ages

Guest Feb 19, 2020

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357

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Looking for amplitude, period, and frequency.

The position of a particle moving along the x-axis is determined by:
If the particle starts from rest at x=0 find x as a function of time.
Find the amplitude, period, and frequency when a very long time has passed.

Guest Feb 19, 2020

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329

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please help

Can someone help with this hard probability problem?

Suppose three players go on multiple rounds of kart race. In each round, every playerhas a winning probability of 1/3, independent of other rounds. Let the note the number ofrounds read more ..

Guest Feb 19, 2020

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1523

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+109

Radius of a circle

The logo for a new company is a circle divided into 24 equally sized sectors. Six of the sectors are white, and the others are different colors.
The area of one of the white sectors is 13π50 inches squared.
What is the radius read more ..

valval2205 Feb 19, 2020

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