All Questions

+1

767

1

#Xforlife

0=0

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Guest Nov 10, 2019

+3

920

2

+2864

Late For a Party Riddle

Alice and Bob both go to a party which starts at 5:00. Each of them arrives at a random time between 5:00 and 6:00. What is the probability that the number of minutes Alice is late for the party plus the number of minutes Bob is late for the party is less read more ..

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CalculatorUser Nov 10, 2019

+1

1378

4

Brad has a cylindrical barrel with radius 10 inches and height 15 inches. He wants to fill it from a well, using a bucket in the shape of a

Brad has a cylindrical barrel with radius 10 inches and height 15 inches. He wants to fill it from a well, using a bucket in the shape of a hemisphere with a radius of 10 inches. How many trips must Brad make to the well in order to fill the barrel? read more ..

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Guest Nov 10, 2019

+1

928

10

help

What is the area of the shaded region?

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Guest Nov 10, 2019

+1

554

2

help

How many times is the digit 0 written while listing all numbers from 1 to 3333?

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Guest Nov 10, 2019

+1

599

1

im stuck

The side lengths of a triangle are 15 units, 47 units and x/2 units. How many integer values of x are possible?

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Guest Nov 10, 2019

+2

1186

12

+142

Hewo!

In the equation 1/j +1/k = 1/3, both j & k are positive integers. What is the sum of all possible values for k?

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MagicKitten Nov 10, 2019

-2

861

1

+155

Directrix of a Parabola

help with question

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Valeriia222 Nov 10, 2019

0

625

2

Parabola Question Help

help please

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Guest Nov 10, 2019

0

1269

6

Genuine help again please

In $\triangle ABC$, the circumcenter and orthocenter are collinear with vertex $A$. Which of the following statements must be true?
(1) $\triangle ABC$ must be an isosceles triangle.
(2) $\triangle ABC$ must be an equilateral triangle. read more ..

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Guest Nov 10, 2019

+3

1063

29

+2864

The dangers of the internet

Be careful guys, the internet is very dangerous.

Be CAREFUL of what links you click! They can actually take you IP address.
read more ..

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CalculatorUser Nov 10, 2019

-2

932

4

+41

If 4x=8 (mod20) and 3x=16 (mod 20) then ....;

deleted

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htzhang919 Nov 10, 2019

+1

902

35

+142

Math!!! (Is this how you post a question?)

A student was supposed to substitute a certain value for x into the expression 2x^3. The student thought the expression was (2x)^3. If the student's answer was 384 greater then the correct answer, what value of x did the student use?
read more ..

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MagicKitten Nov 10, 2019

0

1284

3

Sorry on the last one if it was me being lazy I am new to this site

1) The graph of the parametric equations x= 2-3t, y= -1+5t is a line. What is the slope of this line?

2)Find the value of c such that the point (3,c) is on the graph of the parametric equations x = 6 + 2t, y = -2 +5t read more ..

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Guest Nov 10, 2019

+1

2812

3

+312

MATHCOUNTS II

Twenty-four 4-inch wide square posts are evenly spaced with 5 feet between adjacent posts to enclose a square field, as shown. What is the outer perimeter, in feet, of the fence? Express your answer as a mixed number.

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mathleteig Nov 10, 2019

-1

620

2

Help. Homework

1) The graph of the parametric equations x= 2-3t, y= -1+5t is a line. What is the slope of this line?

2)Find the value of c such that the point (3,c) is on the graph of the parametric equations
read more ..

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Guest Nov 10, 2019

0

1009

16

+1713

Mathcounts!

The difference between 2 integers is four, and the sum of two integers is sixteen. What is the absolute value of the difference of the squares of the integers?

Okay, ALL I can think of for this is guess and check. Is there a read more ..

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tommarvoloriddle Nov 10, 2019

0

864

3

+1713

MATTTTTHHHHHCCCCCOOOOOUUUUUNNNNNTTTTTSSSSS

The difference between 2 integers is four, and the sum of two integers is sixteen. What is the absolute value of the difference of the squares of the integers?

Okay, ALL I can think of for this is guess and check. Is there a read more ..

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tommarvoloriddle Nov 10, 2019

+6

1470

10

+2864

Instant LaTeX Conversion to Handle Those Lazy Guests!

Here guys, after some extensive research (2 minutes), I found this java code that will convert any LaTeX-wrapped text on your screen into real rendered latex. INSTANTLY, in ONE CLICK. Follow the steps below PRICISELY.

1. You first read more ..

off-topic

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CalculatorUser Nov 10, 2019

+1

1660

8

+312

CIRCLES

An arc of 55 degrees on circle A has the same length as an arc of 40 degrees on circle B. What is the ratio of the area of circle A to the area of circle B? Express your answer as a common fraction.

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mathleteig Nov 10, 2019

0

809

10

Help quick

Let $x$ and $y$ be positive real numbers such that $2x + 3y = 5.$ Find the minimum value of \[\frac{3}{x} + \frac{2}{y}.\]

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Guest Nov 10, 2019

-1

859

7

+41

deleted

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htzhang919 Nov 9, 2019

All Questions ⁺⁰237748 Questions

#Xforlife

Late For a Party Riddle

Brad has a cylindrical barrel with radius 10 inches and height 15 inches. He wants to fill it from a well, using a bucket in the shape of a

help

help

im stuck

Hewo!

Directrix of a Parabola

Parabola Question Help

Genuine help again please

The dangers of the internet

If 4x=8 (mod20) and 3x=16 (mod 20) then ....;

Math!!! (Is this how you post a question?)

Sorry on the last one if it was me being lazy I am new to this site

MATHCOUNTS II

Help. Homework

Mathcounts!

MATTTTTHHHHHCCCCCOOOOOUUUUUNNNNNTTTTTSSSSS

Instant LaTeX Conversion to Handle Those Lazy Guests!

CIRCLES

Help quick

deleted

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