All Questions

532

help

For what value of a is there a right triangle with sides a + 1, 6a and 6a + 1?

●

Guest May 17, 2020

816

please help

The first term of a given sequence is 1, and each successive term is the sum of all the previous terms of the sequence. What is the value of the first term which exceeds 5000?

●

Guest May 17, 2020

644

help

Chris’ running schedule dictates that he never runs more than two days in a row, nor does he go more than two days in a row without running. In two weeks, what is the positive difference between the fewest number of days and the greatest number of days read more ..

●

Guest May 17, 2020

747

Halp

Suppose ABCD and EFGH are congruent parallelograms with AD=10. If the area of ABCD is 112, find EN.

●●●

Guest May 17, 2020

662

There were 64 houses, last month, 1/4 of the houses were sold, this month 3/4 of the houses were sold, how many houses are left to be sold?

●●

Guest May 17, 2020

692

help

What is the sum of the seven smallest distinct positive integer multiples of 9?

●

Guest May 17, 2020

539

help

Find the equation of the plane which passes through and having the normal vector

●●

Guest May 17, 2020

416

help

A line is represented by and a plane is represented by Find the value of so that the line and plane intersect.

●

Guest May 17, 2020

472

help

Jack and Jill take a total of $80 to an amusement park. Including admission, Jack spends $24 and Jill spends $20. At the end of the day, Jack has twice as much money as Jill. How many dollars did Jill have at the end of the day?

●

Guest May 17, 2020

464

help

What is the product of the two integer values of x for which |x^2- 16| is a prime number?

●

Guest May 17, 2020

468

100 meter race

Arman, Babken and Cecilia decided to compete in running a distance of
100m. When Arman was at the finish line, Babken was 10m behind him.
When Babken was at the finish line, Cecilia was 10m behind him. How far
was Cecilia behind Arman, when he read more ..

●

Guest May 17, 2020

646

Three-digit number

I thought of a three-digit number. If I add all the possible two-digit numbers
made by using only the digits of this number, then one third of this sum is
equal to the number I thought of. What is the number I thought of?

●●

Guest May 17, 2020

457

64 Liters

There is a container with 64 liters of pure alcohol. 32 liters were poured out
of the container and replaced with pure water. How many times should you
repeat this operation to get a solution with only 2 liters of alcohol?

●

Guest May 17, 2020

765

please help

The sum of a five-term arithmetic sequence is 100. If all terms are positive integers, what is the smallest possible value for a term?

●

Guest May 17, 2020

-7

661

+318

Final exam:(

Solve each trigonmetric equation in the interval [0, 2pi) by first squarring both sides.

sq rt(3) cos x=sin x+1
read more ..

●●

mharrigan920 May 17, 2020

515

geometry

Two squares are drawn with one vertex at the center of the octagon. The overlapped area is removed. How much of the octagon is left (ratio of peach area to the area of octagon)?

read more ..

●

Guest May 17, 2020

859

help

If (7, 9) and (10, 2) are the coordinates of two opposite vertices of a square, what is the sum of the y-coordinates of the other two vertices?

●

Guest May 17, 2020

570

halp

1. How many cubic polynomials f(x) are there such that f(x) has nonnegative integer coefficients and f(1) = 9?

2. How many ordered quadruples (a,b,c,d) satisfy, a + b + c + d = 18,
where a,b,c,d are integers such read more ..

●

Guest May 17, 2020

551

probability

Owen has exactly a 50% chance of throwing a winner on each turn in ring toss. If he took three turns in ring toss and at least one of the turns was a winner, what was the probability that all three tosses were winners? Express your answer as a common fraction. read more ..

●

Guest May 17, 2020

522

please help

Compute the modulus and argument for these complex numbers. Graph them on this plane;

1. 2+2i
Modulus: read more ..

●

Guest May 17, 2020

391

could anyone provide input on this problem please

https://web2.0calc.com/questions/find-k#r2
Thanks :)

Guest May 17, 2020

May 16, 2020

2167

+280

What is (−2√3−2i) 4 equivalent to?

What is (−2√3−2i)4 equivalent to?

Express the answer in polar form.
read more ..

●●●

auxiarc May 16, 2020

861

help

Each edge length of a rectangular solid is a prime number. If the volume of the rectangular solid is 385 cubic units, what is the total surface area, in square units, of the rectangular solid?

●

Guest May 16, 2020

1254

help please. thanks.

We have a right triangle $\triangle ABC$ where the legs $AB$ and $BC$ have lengths $6$ and $3\sqrt{3},$ respectively. Medians $AM$ and $CN$ meet at point $P.$ What is the length of $CP$?

●●

Guest May 16, 2020

All Questions ⁺⁰237665 Questions

help

please help

help

Halp

There were 64 houses, last month, 1/4 of the houses were sold, this month 3/4 of the houses were sold, how many houses are left to be sold?

help

help

help

help

help

100 meter race

Three-digit number

64 Liters

please help

Final exam:(

geometry

help

halp

probability

please help

could anyone provide input on this problem please

What is (−2√3−2i) 4 equivalent to?

help

help please. thanks.

0 Online Users

Top Users

Sticky Topics