All Questions ⁺⁰237785 Questions

0

1

1636

3

+107

Arithmetic mean 3 digit number

FInd the arithmetic mean of all 3-digit numbers whose digits are distinct and nonzero

MacTyBoys Dec 24, 2018

0

961

2

+107

Dice probability

A six sided die whose faces are -2, -1, 0, 0, 1, 2. The die is rolled 3times.Find the probability that the sum of the 3 numberssherolls is zero (in a fraction)

MacTyBoys Dec 24, 2018

0

863

2

Positive integer divisors

How many positive integer divisors of 23,328 are perfect cubes?

Guest Dec 24, 2018

0

1229

2

statistics

Find the area under the standard normal curve over the interval specified below. Between z = –2 and z = 1.2

Guest Dec 24, 2018

0

912

4

help please !!!!!

To go to sleep, Oliver counted by 6s starting from 15 . Thus the first few numbers he named were 15,21,27,33....
The last number he named before he fell asleep was 363. How many numbers did Oliver name?

Guest Dec 24, 2018

Dec 23, 2018

0

963

7

help

A truncated cone has horizontal bases with radii 18 and 2. A sphere is tangent to the top, bottom, and lateral surface of the truncated cone. What is the radius of the sphere?

●●●●●●●

Guest Dec 23, 2018

0

867

5

Solve the following system of equations for the unknown variables.

Solve the following system of equations for the unknown variables.
3x + 3y = 3
-3x – 2z = -11
y + z = -1 read more ..

●●●●●

Guest Dec 23, 2018

0

978

1

help

In how many ways can you spell the word NOON in the grid below? You can start on any letter, on each step you can move one letter in any direction (up, down, left, right, or diagonal). You cannot visit the same letter twice.
NNNN
NOON read more ..

Guest Dec 23, 2018

0

847

2

+166

help

Given positive integers x and y such that x doesn't equal y and 1/x+1/y=1/12, what is the smallest possible value for x+y?

grif389 Dec 23, 2018

+4

1042

2

+777

CPHill, I have a question about logarithms and functions too.

CPHill, I have a question about logarithms and functions too.

Let { if n is odd.
{ if n is even.
For how many integers n from 1 to 100, read more ..

PartialMathematician Dec 23, 2018

0

724

1

help

Two intersecting circles have a common chord of length 16 ft, and their centers lie on opposite sides of the chord. The radii of the circles are 10 ft and 17 ft respectively. Express the distance between the centers of the circles in feet.

Guest Dec 23, 2018

0

662

1

help

A triangle with is inscribed in a circle where AB is a diameter. How many degrees are in ?

Guest Dec 23, 2018

+1

808

1

+6

HELPPPPP

pLEASE HELP MEEE

Cuteehadia786 Dec 23, 2018

0

1282

3

+6

HELPPP

Cuteehadia786 Dec 23, 2018

0 Online Users