All Questions ⁺⁰237784 Questions

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144

1

I have created a puzzle, dare to solve it?

There are five cars in a parking lot, each with a different color, a different brand, a different owner, and a different license plate. The clues are:
The blue car is a Toyota and belongs to Alice.
The green car is parked next to the Ford read more ..

Guest Apr 5, 2023

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137

0

Help how do you solve this

Six children are each offered a single scoop of any of 3 flavors of ice cream from the Combinatorial Creamery. In how many ways can each child choose a flavor for their scoop of ice cream so that each flavor of ice cream is selected by at least two chi read more ..

Guest Apr 5, 2023

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156

2

Pls I need an answer fast

Carissa the chessplayer is a very, very slow walker. In fact, she walks at 100 meters per hour when walking uphill, 120 meters per hour when walking across flat ground, and 150 meters per hour when walking downhill. One day, Carissa walks across read more ..

Guest Apr 5, 2023

0

145

1

help

Function $f$ has an inverse. The graph of $f^{-1}$ passes through $(3,-6)$. Define $g(x) = 2f(3x) - 5$. Function $g$ also has an inverse. What point must the graph of $g^{-1}$ pass through?

Guest Apr 5, 2023

0

159

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geometry

(1) In tetrahedron ABCO, angle AOB = angle AOC = angle BOC = 90^\circ. A cube is inscribed in the tetrahedron so that one of its vertices is at O, and the opposite vertex lies on face ABC. Let OA = 1, OB = 1, OC = 1. Show that read more ..

Guest Apr 5, 2023

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76

1

I need help now plis

A system of equations and its solution are given below.
System A
5x-y=-11
3x-2y=-8 read more ..

Guest Apr 5, 2023

0

136

1

counting

Help plz with counting
There is a group of five children, where two of the children are twins. How many ways can I distribute 10 identical pieces of candy to the children, if the twins must get an equal amount of candy?<read more ..

Guest Apr 5, 2023

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138

0

Inequality

Let a, b, and c be nonnegative real numbers. Prove that for all x >= 0,
(x + abc)^3 >= abc(x + a)(x + b)(x + c) >= (x + a + b + c)^3.

Guest Apr 5, 2023

0

146

1

Polynomial

Find a polynomial f(x) of degree 5 such that both of these properties hold:
* f(x) is divisible by x^3
* f(x) + 1 is divisible by (x + 1)(x + 2)(x + 3)
Write your answer in expanded form. read more ..

Guest Apr 5, 2023

0

106

1

What is the answer to x3 y3 z3 k?

What is the answer to x3 y3 z3 k?
please help

Guest Apr 5, 2023

0

162

2

Counting

You are given the 4 x 4 grid below.
(a) Find the number of ways of placing 8 counters in the squares (at most one counter per square), so that each row contains exactly two counters.
(b) Find the number of ways read more ..

Guest Apr 5, 2023

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139

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Probability

How this work
We define a bow-tie quadrilateral as a quadrilateral where two sides cross each other. An example of a bow-tie quadrilatera is shown below. distinct points are chosen on a circle. We draw all read more ..

Guest Apr 5, 2023

+1

139

3

+397

Here's a cross-number puzzle I came across recently.

Here's a cross-number puzzle I came across recently.
The letters a, b, c, d, e, f, g and h denote distinct positive integers.
The answer to each clue is a 4-digit read more ..

Tiggsy Apr 5, 2023

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161

2

directed line segment

AC has endpoints with coordinates A(-5 2) and c (4,-10). if b is a point on AC:BC=1:2, what are the coordinates of B?

Guest Apr 5, 2023

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138

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Algebra

Carissa the chessplayer is a very, very slow walker. In fact, she walks at 100 meters per hour when walking uphill, 180 meters per hour when walking across flat ground, and 250 meters per hour when walking downhill. One day, Carissa walks read more ..

Guest Apr 5, 2023

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175

1

Where ! is?

Where is the ! on this calculator? I Don't see where this is?

Guest Apr 5, 2023

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152

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counting

Help plz with counting
Find the number of ways of arranging the numbers 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 in a row so that the product of any two adjacent numbers is even or a mutliple of 3

Guest Apr 5, 2023

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138

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Counting

When two standard 6-sided dice are rolled, there are 36 possible outcomes for the sum of the two rolls: one sum of 2, two sums of 3, and so on, up to one sum of 12.
Find all possible ways of numbering two 6-sided dice read more ..

Guest Apr 5, 2023

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144

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Algebra

Let r be a root of x^3 - 2x + 5 = x^3 - x^2 + 9. Show that none of r, r^2, or r^3 is irrational.

Guest Apr 5, 2023

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141

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precalc

Plz help with parametric equations
The position of a particle is given by the parametric equations
x = 1 + sin pi*t - cos pi*t
y = 3*sin pi*t + 2*cos pi*t read more ..

Guest Apr 5, 2023

0

152

1

A very hard math question.

What is 10 plus 10?
I think the answer is 1010 but the calculator keeps saying thats not the answer.

Guest Apr 5, 2023

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