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All Questions
+0
230861 Questions
0
1
1581
3
+107
Arithmetic mean 3 digit number
FInd the arithmetic mean of all 3-digit numbers whose digits are distinct and nonzero
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MacTyBoys
Dec 24, 2018
0
878
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)
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MacTyBoys
Dec 24, 2018
0
795
2
Positive integer divisors
How many positive integer divisors of 23,328 are perfect cubes?
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Guest
Dec 24, 2018
0
1143
2
statistics
Find the area under the standard normal curve over the interval specified below. Between z = –2 and z = 1.2
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Guest
Dec 24, 2018
0
818
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?
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Guest
Dec 24, 2018
Dec 23, 2018
0
931
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?
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Guest
Dec 23, 2018
0
823
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 ..
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Guest
Dec 23, 2018
0
909
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 ..
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Guest
Dec 23, 2018
0
763
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?
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grif389
Dec 23, 2018
+4
964
2
+773
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 ..
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PartialMathematician
Dec 23, 2018
0
651
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.
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Guest
Dec 23, 2018
0
566
1
help
A triangle with is inscribed in a circle where AB is a diameter. How many degrees are in ?
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Guest
Dec 23, 2018
+1
731
1
+6
HELPPPPP
pLEASE HELP MEEE
tertre
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Cuteehadia786
Dec 23, 2018
0
1206
3
+6
HELPPP
HELPPP
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Cuteehadia786
Dec 23, 2018
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