All Questions

1168

+489

Pascals

Let be the base-10 logarithm of the sum of the elements of the n-th row in Pascal's triangle. Express in terms of n

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RektTheNoob Feb 28, 2018

732

+489

Each of five, standard, six-sided dice is rolled once. What is the probability that there is at least one pair but not a three-of-a-kind (th

Each of five, standard, six-sided dice is rolled once. What is the probability that there is at least one pair but not a three-of-a-kind (that is, there are two dice showing the same value, but no three dice show the same value)?

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RektTheNoob Feb 28, 2018

2850

+489

In how many ways can seven beads of distinct colors be put on the hexagonal grid shown, if reflections and rotations of an arrangement are c

In how many ways can seven beads of distinct colors be put on the hexagonal grid shown, if reflections and rotations of an arrangement are considered equivalent?
read more ..

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RektTheNoob Feb 28, 2018

2313

+489

Meerkats

There are ten meerkats in a colony. Every night, two meerkats stand guard while the others sleep. During a certain period of nights, every meerkat stands guard with every other meerkat exactly once. During that period, how many nights of sleep does each read more ..

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RektTheNoob Feb 28, 2018

1778

Graphs

The graph of y=f(x) has the line x=5 as an axis of symmetry. The graph also passes through the point (8,-7) Find another point that must lie on the graph of y=f(x)

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Guest Feb 28, 2018

378

How to do this problem about finding a diameter?

Guest Feb 28, 2018

622

Help

Please help homework is due tonight

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DisBoi3333 Feb 28, 2018

655

+816

CPhill! Help!

Given that and for all , find .

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mathtoo Feb 28, 2018

1677

Please help asap

A triangle is formed with edges along the line $y=\frac{2}{3}x+5$, the $x$-axis, and the line $x=k$. If the area of the triangle is less than $20$, find the sum of all possible integral values of $k$.

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Guest Feb 28, 2018

2020

Help

Find all values of $t$ such that $8t^2 \le 3-10t$.

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Guest Feb 28, 2018

601

+1495

Help!

Help!

Short answer :
Before completing the square, what must the coefficient of the term involving x^2 be? read more ..

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ManuelBautista2019 Feb 28, 2018

3068

+168

A water cup is in the shape of the cone. The diameter of the cup is 3 inches and the height is 6 inches.

A water cup is in the shape of the cone. The diameter of the cup is 3 inches and the height is 6 inches.
What is the volume of water the cup could hold?
Use 3.14 for pi.
Enter your answer, as a decimal, in the box. read more ..

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Jazminfun0128182 Feb 28, 2018

3907

+168

How is the formula for the circumference of a circle derived?

How is the formula for the circumference of a circle derived?
Drag and drop the correct word into each box to complete the explanation.
First, find the length of the diameter and the length of the-----of the circle.
Next, divide read more ..

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Jazminfun0128182 Feb 28, 2018

1699

+168

XYZ∼DEF , YZ is 10 meters, XZ is 15 meters, and EF is 8 meters. What is DF ? Enter your answer in the box. m

△XYZ∼△DEF , YZ is 10 meters, XZ is 15 meters, and EF is 8 meters.
What is DF ?
Enter your answer in the box.
m read more ..

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Jazminfun0128182 Feb 28, 2018

4537

+593

A restaurant has a profit of $1,300 in January. The profit will increase by $150 each month for 11 months.

A restaurant has a profit of $1,300 in January. The profit will increase by $150 each month for 11 months.
What will the total profit be over the 12-month period?

read more ..

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jbouyer Feb 28, 2018

4577

+593

1. What is the sum of the first 19 terms of the arithmetic series?

1. What is the sum of the first 19 terms of the arithmetic series?
3+8+13+18+…

2. What is equal to? read more ..

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jbouyer Feb 28, 2018

Feb 27, 2018

678

+1495

Homework help.

Homework help.

what shape is the graph of a quadratic equation in the form y=ax2+bx + c?

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ManuelBautista2019 Feb 27, 2018

589

+1495

Help me Please

Help me Please

True or False?
read more ..

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ManuelBautista2019 Feb 27, 2018

637

n 4 37 an 45 606 Hint: an = a1 + d(n − 1), where a1 is the first term and d is the common difference.Part A: What is the first term, a1, of

n
4
37
an read more ..

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Guest Feb 27, 2018

612

Help Please It's due today

If (x,y) satisfies the simultaneous equations
3xy - 4x^2 - 36y + 48x = 0
x^2 - 2y^2 = 16
where x and y may be complex numbers, determine all possible values of y^2.

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Guest Feb 27, 2018

390

Help

Determine a constant k such that the polynomial P(x,y,z)=x^5+y^5+z^5+k(x^3+y^3+z^3)(x^2+y^2+z^2) is divisible by x+y+z.

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Guest Feb 27, 2018

786

+1495

Help Me, please.

Help Me, please.

True/False
read more ..

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ManuelBautista2019 Feb 27, 2018

2467

+1450

New problem :/

A square piece of paper is folded once so that one pair of opposite corners coincide. When the paper is unfolded, two congruent triangles have been formed. Given that the area of the original square is 49 square inches, what is the number of inches in the read more ..

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AnonymousConfusedGuy Feb 27, 2018

574

+1495

Help Me Please.

Help Me Please.

True or False?
read more ..

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ManuelBautista2019 Feb 27, 2018

695

Help Quick Please! Thanks in advance!

Factor (x^2+y^2-z^2)^2-4x^2y^2as the product of four polynomials of degree 1.

TheXSquaredFactor ●

Guest Feb 27, 2018

All Questions ⁺⁰230542 Questions

Pascals

Each of five, standard, six-sided dice is rolled once. What is the probability that there is at least one pair but not a three-of-a-kind (th

In how many ways can seven beads of distinct colors be put on the hexagonal grid shown, if reflections and rotations of an arrangement are c

Meerkats

Graphs

How to do this problem about finding a diameter?

Help

CPhill! Help!

Please help asap

Help

Help!

A water cup is in the shape of the cone. The diameter of the cup is 3 inches and the height is 6 inches.

How is the formula for the circumference of a circle derived?

XYZ∼DEF , YZ is 10 meters, XZ is 15 meters, and EF is 8 meters. What is DF ? Enter your answer in the box. m

A restaurant has a profit of $1,300 in January. The profit will increase by $150 each month for 11 months.

1. What is the sum of the first 19 terms of the arithmetic series?

Homework help.

Help me Please

n 4 37 an 45 606 Hint: an = a1 + d(n − 1), where a1 is the first term and d is the common difference.Part A: What is the first term, a1, of

Help Please It's due today

Help

Help Me, please.

New problem :/

Help Me Please.

Help Quick Please! Thanks in advance!

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