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Post New Question
All Questions
+0
234773 Questions
-1
467
1
please helpz!
Solve this trig equation.
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Guest
Aug 21, 2020
-1
418
2
Help Please?
Find all possible integer values of n such that the following system of equations has a solution for z: \(\begin{align*} z^n &= 1, \\ \left(z + \frac{1}{z}\right)^n &= 1. \end{align*}\)
I just have no idea what to do.
read more ..
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Guest
Aug 21, 2020
-1
508
1
+3
PLZ HELP ME!!! I HVE TEST TOMORROW AND DONT KNOW HOW TO DO THIS PROBLEM
2x−4y=20
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RandomThoughts
Aug 21, 2020
-1
638
1
+133
Distributions Question
(a) There are n chairs in a row. Find the number of ways of choosing k of these chairs, so that no two chosen chairs are adjacent.
(b) There are 10 chairs in a circle, labelled from 1 to 10. Find the number of ways of choosing 3 of these chairs,
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SpicyP
Aug 21, 2020
-1
596
2
NEED HELP ASAP
One card is to be drawn from a deck of 52 cards. The deck includes four types of cards; red hearts, red stars, black triangles, black circles. Each type has 13 cards, numbered 1 − 13. What is the probability of drawing a red one, a black three, or a six
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Guest
Aug 21, 2020
-1
468
1
need help
Write the equation of a line that is perpendicular to the given line and passes through a given point
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Guest
Aug 21, 2020
-1
421
1
+109
Please help me asap!! Thank you!!
1.) Let be defined by
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dp1806
Aug 21, 2020
-1
498
1
help pleasseeeee
How to find answer?
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Guest
Aug 21, 2020
Aug 20, 2020
-1
456
1
geometry
If JL = 30, JK = 18, and LM = 6, then the value of LN is:
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Guest
Aug 20, 2020
-1
504
1
feeling stuck
Find the surface area of the composite figure.
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Guest
Aug 20, 2020
-1
427
1
help please!
a metallurgist has an alloy with 10% titanium and an alloy with 20% titanium. he needs 100 grams of an alloy with 16% titanium. how much of each alloy should be mixed to attain the 100 grams of alloy with 16% titanium?
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Guest
Aug 20, 2020
-1
396
1
Vector Geometry
Let and be vectors such that and Find
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Guest
Aug 20, 2020
-1
436
1
please help
I'm really lost with these.
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Guest
Aug 20, 2020
-1
731
1
+8
Can integers be terminating decimals?
Can integers be terminating decimals? Such as 1, 2, 3, ...
edit: srry if this is kinda off topic
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ScaryMath
Aug 20, 2020
-1
555
2
HELPPP
Rationalize the denominator:
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Guest
Aug 20, 2020
0
377
1
help please
We are given 8 chiildren: 4 boys and 4 girls. We are dividing them into 2 groups (A and B) - 4 people each. What is the propability that 4 boys (and so 4 girls) will be in the same group?
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Guest
Aug 20, 2020
0
711
1
Any help appreciated pls give answer and explanation
The positive integers 1 through 49 are divided into k disjoint subsets so that no two integers whose sum is divisible by 10 are in the same subset. For example, 13 and 37 cannot be in the same subset. What is the smallest possible value of k?
Ok,
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Guest
Aug 20, 2020
0
504
1
its been an hour...
https://web2.0calc.com/questions/help_9603
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Guest
Aug 20, 2020
0
431
1
help on easy surface area q
bridget places a box that is 4 by 6 by 8 on the floor. She then places a 2 by 3 by 5 box on top of the first box, forming a 2 box tower. She will paint all the surfaces she can paint without moving either of the boxes. She wants to paint as little as possible,
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Guest
Aug 20, 2020
0
389
1
geometry math help!
Three circles are drawn, so that each circle is externally tangent to the other two circles. Each circle has a radius of 2. A triangle is then constructed, such that each side of the triangle is tangent to two circles, as shown below. Find the perimeter
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Guest
Aug 20, 2020
0
303
0
geometry question
How do you find x?
Guest
Aug 20, 2020
0
379
1
help!
How many pairs of positive integers (x,y) satisfy the equation ?
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Guest
Aug 20, 2020
+1
489
0
+479
Helppp
https://web2.0calc.com/questions/help-asap_84023
I'd like a full explanation, please!
HelpBot
Aug 20, 2020
0
377
1
please help
Of the three-digit integers greater than 700, how many have two digits that are equal to each other and the remaining digit different from the other two
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Guest
Aug 20, 2020
0
896
3
Help with modular arithmetic
John and Ling start their new jobs on the same day. John's schedule is 4 workdays followed by 1 day off. Ling's schedule is 7 workdays followed by 2 days off. On how many days during their first year of work (365 days) do John and Ling have the same day off?
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Guest
Aug 20, 2020
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