All Questions +0 237665 Questions

Sarvajit May 11, 2020

0

643

1

Three distinct numbers are chosen at random from the set {0, 1, 2, ..., 10}. What is the probability that the middle element is 5?

Solve the inequality $x^3 + 4x > 5x^2$.

Guest May 11, 2020

+1

1188

1

Help. Thanks. :D

I'm having a hard time with even and odd functions:

Let e(x) and o(x) be even and odd functions, respectively, such that
<read more ..

Guest May 11, 2020

0

510

1

please explain

This is a gentle reminder to all members of this forum, and guests.

1) Don't post your ELA or History or whatever other question that isn't directly a) math, b) science, or c) some kind of STEM.
read more ..

Guest May 11, 2020

+9

880

1

+1005

A gentle reminder

off-topic

Let x be an acute angle such that tan(x) = 1/3. Find sin(x) + cos(x).

hugomimihu May 11, 2020

0

480

1

help

If f(x)=5x-12, find a value for x so that f^-1(x)=f(x+1).

Guest May 11, 2020

0

523

1

Help

If the lengths of sides AB, BC and AC in the figure shown form a geometric progression in that order, what is the ratio between AC and AB to 3 decimal places?

read more ..

Guest May 11, 2020

0

506

1

please help

A hat contians one chip marked with the number 1, two chips marked with the number 2, and so on, through one hundred chips marked with the number 100. You draw a chip at random. What is the probability that the chip has an even number? read more ..

Guest May 11, 2020

0

516

1

help with probability

The first matrix (A) shows the number of cars and bicycles owned by two families. The second matrix (B) records the wheels and seats for cars and bicycles.

Use a matrix product to find a matrix that gives the number of wheels read more ..

Guest May 11, 2020

0

569

1

+94

Please Help! Matrices

Find the point in the plane that is closest to the origin.

MathsLlama May 11, 2020

0

612

1

help

How many integers from 100 to 999 can be written with no 7's?

Guest May 10, 2020

0

605

3

help

From a standard deck of cards, the four Aces, four 2's, four 3's, and four 4's are drawn, forming a smaller deck of 16 cards. All 16 cards are dealt at random to four players, so that each player gets four cards. What is the probability that each player read more ..

Guest May 10, 2020

0

442

2

help

The first matrix (A) shows the number of cars and bicycles owned by two families. The second matrix (B) records the wheels and seats for cars and bicycles.

Use a matrix product to find a matrix that gives the number of wheels read more ..

Guest May 10, 2020

0

648

1

+94

Please Help!

A unit circle is inscribed in a square, and this square is inscribed in another circle. What is the radius of the outer circle?

MathsLlama May 10, 2020

0

415

1

geometry

What is the producdt of all the divisors of 1000?

Guest May 10, 2020

0

493

2

divisor problem

Two of the exterior angles of a triangle are 158 degrees and 99 degrees. Find the third exterior angle, in degrees.

Guest May 10, 2020

0

724

1

please help on geometry question!

Find the perimeters of these figures.

Guest May 10, 2020

0

528

3

help

Guest May 10, 2020

0

511

1

A cube-shaped gift is 11 centimeters long. What is the least amount of wrapping paper you need to wrap the gift?

For some rational function,f(x) the graph of y=f(x) has an oblique asymptote of y = 5x+7. Enter the equation of the horizontal asymptote of the graph of:
Thanks Guys! read more ..

Guest May 10, 2020

-1

821

3

+70

Hey Guys I'm still stuck on thiss :/

The roots of the equation are in the form and . Find a + b + c + d + e.

thesoccerfish May 10, 2020

0

576

1

hard equation

Before a nuclear reaction, there is 0.0100 kg of uranium. After the nuclear reaction, there is 0.0090 kg of uranium. How much energy was released? (h = 6.63 × 10^-34 J • s)

Guest May 10, 2020

0

820

4

+1995

Before a nuclear reaction, there is 0.0100 kg of uranium.

●●●●

jjennylove May 10, 2020

0

445

2

HELP

HELP

read more ..

You are dealt cards from a standard deck of 52 cards. How many ways can you be dealt 5 cards so that the 5 cards contain two cards of one rank, two cards of another rank, and a fifth card of a third rank? We say that such a hand read more ..

Guest May 10, 2020

-3

851

3

+84

Hello, math help please :D