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All Questions
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230625 Questions
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566
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I am reposting the question 2 hours ago thank you for help
The third term of an arithmetic sequence of positive numbers, in which the difference between the terms is not zero, is the geometric mean of the first and eleventh terms. What is the ratio of the second term to the first term of the sequence?
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Guest
Aug 6, 2020
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342
1
Help
I choose a random integer $n$ between $1$ and $10$ inclusive. What is the probability that for the $n$ I chose, there exist no real solutions to the equation $x(x+5) = -n$? Express your answer as a common fraction.
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Guest
Aug 6, 2020
+1
1608
1
+81
help asap!
How many points of the form (x,y), where both coordinates are positive integers, lie below the graph of the hyperbola xy=16?
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toodlestraws
Aug 6, 2020
0
508
2
HALP ME ASAP!!!
I need help ASAP!!!
Assuming that simplify the expression
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Guest
Aug 6, 2020
+2
504
3
+55
Number Theory
a) Show that n(2n + 1)(7n + 1) is divisible by 6 for all integers n.
b) Find all integers n such that n(2n + 1)(7n + 1) is divisible by 12.
So far here is what I have: For part a),
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ConfuzzledKitten
Aug 6, 2020
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436
1
need help
Please help with this equation!
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Guest
Aug 6, 2020
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499
1
ASAP HELP NOW PLZ
The sequence , is made by repeatedly dividing by 3. How many integers are in this sequence?
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Guest
Aug 6, 2020
0
404
1
SERIOUS HELP ASAPP
Evaluate the sum
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Guest
Aug 6, 2020
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461
1
number theory
Find the number of positive divisors of 540.
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Guest
Aug 6, 2020
0
309
0
please help
What is the surface area of this triangular pyramid?
Guest
Aug 6, 2020
0
840
2
+981
In the diagram, K, O and M are the centers of the three semi-circles. OC = 32 and CB = 36,
In the diagram, K, O and M are the centers of the three semi-circles. OC = 32 and CB = 36,
What is the area of the semi-circle with center k?
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qwertyzz
Aug 6, 2020
0
435
0
+479
Help please ;D
https://web2.0calc.com/questions/help-asap_84023
HelpBot
Aug 6, 2020
0
395
1
please help
Find the area of this shape.
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Guest
Aug 6, 2020
0
467
1
Any halp appreciated tricky question
The third term of an arithmetic sequence of positive numbers, in which the difference between the terms is not zero, is the geometric mean of the first and eleventh terms. What is the ratio of the second term to the first term of the sequence?
read more ..
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Guest
Aug 6, 2020
0
334
1
Some math help plz?
Among 202 people on a beach, some are wearing sunglasses and some are wearing caps. some people are wearing both sunglasses and caps. The number who wear sunglasses is between 75% and 80% and the number who wear caps is between 55% and 60%. Let m be the
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Guest
Aug 6, 2020
0
417
1
Math help plz!
A math book has N pages. The first page has page number 1. If all page numbers contain 6869 digits in total, what is the sum of digits of N? For example, if a book has 11 pages, pages numbers contain 9+2+2=13 digits in total.
a) 19
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Guest
Aug 6, 2020
0
311
1
help with triangle
Find angle PQR, to one decimal place.
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Guest
Aug 6, 2020
0
887
1
halp plz I need help very fast pls halp
This graph shows the linear relationship between the time in seconds, $x$, for Caroline's walk and the distance in meters, $y$, Caroline is from her starting point. The graph passes through the point $(20,30)$. According to the graph, how many meters will
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Guest
Aug 6, 2020
0
503
1
help plz!
Jerry can complete a given job in 3 hours, while Karen can do it in 2 hours. If Karen works on the job three times as fast as Larry, then how long, in hours, would it take all three of them to complete the job?
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Guest
Aug 6, 2020
0
374
1
HelllllpPPPPP QUICK
A proposal will make years that end in double zeroes a leap year only if the year leaves a remainder of 200 or 600 when divided by 900. Under this proposal, how many leap years will there be that end in double zeroes between 1996 and 4096?
Plzplz
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Guest
Aug 6, 2020
0
385
1
(pls help me)If i travelled 60 km in 45 minutes,what would my speed in km/h be
If i travelled 60 km in 45 minutes,what would my speed in km/h be
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Guest
Aug 6, 2020
0
299
0
algebra question
What is the coefficient of from ?
Guest
Aug 6, 2020
0
587
2
math help?
Seven positive numbers a<=b<=c<=d<=e<=f<=g, has mean, median, mode all equal to 7. Then what is the largest possible value of g?
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Guest
Aug 6, 2020
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