Register
Login
Information
This feature requires your approval of cookies
You can approve cookies in the notification bar at the top of this window
Information
This feature requires your approval of cookies
Home
Forum
^{+0}
Widgets
Formulary
Maths
Help
Complex Numbers
Integral Calculus
Differential Calculus
Equations
Graphs
Linear Algebra
Number theory
Percent
Standard Functions
Statistics
Trigonometry
Unit Conversion
Units
About
Imprint
Privacy Policy
Terms of Service
Credits
Google+
Facebook
Contact Email
wiskdls
Username
wiskdls
Score
182
Stats
Questions
44
Answers
1
44 Questions
1 Answers
0
401
1
+182
math
Dwayne plays five games of rock-paper-scissors. In order to seem unpredictable, he never chooses the same move (rock, paper, or scissors) twice in a row. How many different sequences of moves can Dwayne go through?
●
wiskdls
Apr 21, 2018
0
195
1
+182
Math
Given that a and b are real numbers such that -3 ≤ a ≤ 1 and -2 ≤ b ≤ 4, and values for a and b are chosen at random, what is the probability that product a * B is positive?
GYanggg
●
wiskdls
Apr 21, 2018
0
302
2
+182
Maths
A decorative arrangement of floor tiles forms concentric circles, as shown in the figure to the right. The smallest circle has a radius of 2 feet, and each successive circle has a radius 2 feet longer. All the lines shown intersect at the center and form
read more ..
●
●
wiskdls
Apr 21, 2018
0
269
1
+182
Maths
What is the probability that a point chosen inside the largest rectangle is not within a shaded region?
GYanggg
●
wiskdls
Apr 15, 2018
0
531
2
+182
Math
Lizzie needs to catch a train. The train arrives randomly some time between 2:00 and 3:00, waits for 20 minutes, and then leaves. If Lizzie also arrives randomly between 2:00 and 3:00, what is the probability that the train will be there when Lizzie arrives?
read more ..
●
●
wiskdls
Apr 15, 2018
0
298
1
+182
Math
John and Bob both go to a party which starts at 5:00. Each of them arrives at a random time between 5:00 and 6:00. What is the probability that the number of minutes Grogg is late for the party plus the number of minutes Winnie is late for the party is
read more ..
●
wiskdls
Apr 15, 2018
0
242
1
+182
Maths
John flips a penny, a nickel, and a dime. How many ways can she get at least two heads?
●
wiskdls
Apr 15, 2018
0
234
1
+182
Maths
Bob has a pair of standard dice; one die is blue, and the other die is yellow. He rolls both of his dice. How many ways could the number on the blue die be larger than the number on the yellow die?
●
wiskdls
Apr 15, 2018
0
498
1
+182
Maths
How many numbers between 50 and 250 (inclusive) are not perfect squares?
GYanggg
●
wiskdls
Apr 15, 2018
0
209
1
+182
Maths
2)How many numbers among 1, 2, 3, 1000 are not divisible by 9?
●
wiskdls
Apr 15, 2018
«
latest
3
2
2
1
»
#2
+182
0
@Guest any number number of letters
wiskdls
Apr 15, 2018