All Questions

785

+193

NEED HELP!!!!

Two lines l and m intersect at O at an angle of 28˚. Let A be a point inside the acute angle formed by l and m. Let B and C be the reflections of A over lines l and m, respectively. Find the number of degrees in angle BAC.

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Confusedperson Jun 24, 2018

848

Let n be a natural number with exactly 2 positive prime divisors. Of n^2 has 27 divisors, how many does n have?

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Guest Jun 24, 2018

2446

+193

PLZZZZ HELP!!!!!

Right triangle ABC has legs measuring 8 cm and 15 cm. The triangle is rotated about one of its legs. What is the number of cubic centimeters in the maximum possible volume of the resulting solid? Express your answer in terms of π.

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Confusedperson Jun 24, 2018

896

+193

HELP!!!!!

Triangle ABC with vertices A(-2, 0), B(1, 4) and C(-3, 2) is reflected over the y-axis to form triangle A'B'C'. What is the length of a segment drawn from C to C'?

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Confusedperson Jun 24, 2018

3780

geometry

Triangle $ABC$ has vertices $A(0,8)$, $B(2,0)$, $C(8,0)$. A vertical line intersects $AC$ at $R$ and $\overline{BC}$ at $S$, forming triangle $RSC$. If the area of $\triangle RSC$ is 12.5, determine the positive difference of the $x$ and $y$ coordinates read more ..

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Guest Jun 24, 2018

1603

+239

help

The length of the longer side of rectangle R is 10 percent more than the length of a side of square S. The length of the shorter side of rectangle R is 10 percent less than the length of a side of square S. What is the ratio of the area of rectangle R to read more ..

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Firewolf Jun 24, 2018

1624

Interesting Problem

Please help on this problem:
Two cards are chosen at random from a standard 52-card deck. What is the probability that they are either both hearts or both diamonds?

TheXSquaredFactor ●

Guest Jun 24, 2018

Jun 23, 2018

2301

Geometry Question

In the diagram, PW is parallel to QX, S and T lie on QX, and U and V are the points of intersection of PW with SR and TR, respectively. If angle SUV = 120 degrees and angle VTX = 112 degrees, what is the measure of angle URV?

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Guest Jun 23, 2018

-1

1698

+77

Geometry Problem

In the circle below, AB is parallel to CD, AD is a diameter of the circle, and AD = 36.What is the length of AB? Express your answer in terms of pi.

read more ..

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codehtml127 Jun 23, 2018

980

+753

Help with number theory

What is the average of all positive integers that have three digits when written in base 5, but two digits when written in base 8? Write your answer in base 10.

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MIRB16 Jun 23, 2018

998

Composite Functions Question, Need Help.

Suppose a ship is sailing at a rate of 20 km/h parellel to a straight shoreline. The ship is 8 km from shore when it passes a lighthouse at 1 pm.

a) Let h be the distance between the lighthouse read more ..

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alfagameel Jun 23, 2018

1261

Consider the geometric series . If the sum is a perfect square, what is the smallest possible value of where is a positive

Consider the geometric series $4+\frac{12}{a}+\frac{36}{a^2}+\cdots$. If the sum is a perfect square, what is the smallest possible value of where is a positive integer?

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Guest Jun 23, 2018

856

Steven has 26 different shirts, 26 different pairs of pants, and 26 different pairs of shoes. How many different outfits can he assemble

Steven has 26 different shirts, 26 different pairs of pants, and 26 different pairs of shoes. How many different outfits can he assemble by choosing one from each category? [As a hint, the answer is more than 10,000]. read more ..

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Guest Jun 23, 2018

682

A town has 37,000 inhabitants. If it grows at a rate of 5%/year for 20 years then how many inhabitants will it have?

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Guest Jun 23, 2018

662

One question

On the planet Voltron they operate on a 142 hour day, so their clocks have 142 numbers with the number 142 at the very top (just like the 12 is at the top of our clocks). What number is directly opposite 27?

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Guest Jun 23, 2018

677

probability

Andy spins a fair spinner numbered 1 - 5 and rolls a fair dice.
What is the probability of obtaining a multiple of 4 and a factor of 15?

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Guest Jun 23, 2018

895

Composite Function Problem - Having Trouble Answering This Question someone help ASAP

h(x) f(x) Mileage is a function of time Fuel Consumption is a function of Mileage Consumption is a function of Velocity Cost is a function of Consumption Earnings is a function of Time Interest is a function of Earnings Cost is a function of Consumption read more ..

alfagameel Jun 23, 2018

2149

help please. I got 220, which is INCORRECT.

A Senate committee has 8 Republicans and 6 Democrats. In how many ways can we form a subcommittee of 5 members that has at least one member from each party?

Alan ●

Guest Jun 23, 2018

929

oof stuck

When the greatest common divisor and least common multiple of two integers are multiplied, the product is 180. How many different values could be the greatest common divisor of the two integers?

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Guest Jun 23, 2018

1518

help needed

Let n be a natural number with exactly 2 positive prime divisors. Of n^2 has 27 divisors, how many does n have?

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Guest Jun 23, 2018

2676

How many paths are there from A to B passing through C, if every step must be up or to the right?

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Guest Jun 23, 2018

Jun 22, 2018

1929

How many even divisors does $7!$ have?

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Guest Jun 22, 2018

916

Help please

An object is moving along a straight line. Its position (in meters) from the starting point at time t (measured in seconds) is described by s(t)=t^3-3t. Answer the following.
Find the position of the object at the time moment when its read more ..

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Guest Jun 22, 2018

1518

How many positive perfect cube factors does 3^6*5^{10} have?

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Guest Jun 22, 2018

All Questions ⁺⁰237827 Questions

NEED HELP!!!!

Let n be a natural number with exactly 2 positive prime divisors. Of n^2 has 27 divisors, how many does n have?

PLZZZZ HELP!!!!!

HELP!!!!!

geometry

help

Interesting Problem

Geometry Question

Geometry Problem

Help with number theory

Composite Functions Question, Need Help.

Consider the geometric series . If the sum is a perfect square, what is the smallest possible value of where is a positive

Steven has 26 different shirts, 26 different pairs of pants, and 26 different pairs of shoes. How many different outfits can he assemble

A town has 37,000 inhabitants. If it grows at a rate of 5%/year for 20 years then how many inhabitants will it have?

One question

probability

Composite Function Problem - Having Trouble Answering This Question someone help ASAP

help please. I got 220, which is INCORRECT.

oof stuck

help needed

How many paths are there from A to B passing through C, if every step must be up or to the right?

How many even divisors does $7!$ have?

Help please

How many positive perfect cube factors does 3^6*5^{10} have?

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