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Post New Question
All Questions
+0
234773 Questions
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325
1
integer
If 1 <= a <= 50 and 1 <= b <= 50, for how many ordered pairs of integers (a,b) is sqrt(a + sqrt(b)) an integer?
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Guest
Nov 18, 2020
0
385
1
The Smith family has 4 sons and 3 daughters.
The Smith family has 4 sons and 3 daughters. In how many ways can they be seated in a row of 7 chairs such that at least 2 daughters are next to each other?
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Guest
Nov 18, 2020
0
372
0
(x,y) positive integers
For (x,y), positive integers, let 4xy + 14x + 15y = 166. Find 2x + y.
Guest
Nov 18, 2020
0
543
1
polynomial help again, cphill to the rescue!
f(x) is a monic polynomial such that f(0)=4 and f(1)=10. If f(x) has degree 2, what is f(x)? Express your answer in the form ax^2+bx+c, where a, b, and $c$ are real numbers.
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Guest
Nov 18, 2020
0
446
1
polynomial help please
If f(x) = -7x^4 + 3x^3 + x - 5, and g(x) is a polynomial such that the degree of f(x) + g(x) is 1, then what is the degree of g(x)?
Thanks!
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Guest
Nov 18, 2020
0
500
1
A class photo is being taken of six students, sitting in a row.
A class photo is being taken of six students, sitting in a row. Jamie wants to sit next to Marshall. How many arrangements are possible?
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Guest
Nov 18, 2020
0
480
1
+153
a Math question
Evaluate the following when $a = 3$,$b = \frac14$, and $c = 5$: \[ \frac{b^{-1}}{ca^{-1} - ac^{-1}}. \]
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Thanks4helping
Nov 18, 2020
+1
518
2
+153
Math problem, can anyone help
Expand:
$3p^5q^3\left( 2pq + \frac{5}{(pq)^2} \right)$
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Thanks4helping
Nov 18, 2020
0
548
3
+153
Factor problem, need halp
Factor the following:
\[ -8x^2y^4z^3 + 12x^4yz^3.\]
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Thanks4helping
Nov 18, 2020
0
415
1
There are exactly four positive integers such that
There are exactly four positive integers such that (n + 1)^2/(n + 27) is an integer. Compute the largest such n.
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Guest
Nov 18, 2020
0
347
1
factorial
The expression 120!/(60!*60!) is an integer. What is the largest integer n such that 7^n divides this integer?
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Guest
Nov 18, 2020
+1
443
0
+479
this harddd
Write the quadratic equation that has roots (sqrt(3)-1)/2 and (sqrt(3)+1)/2 if its coefficient x^2 is equal to a) 1 b) sqrt(3).
thx for any help :DDD
HelpBot
Nov 18, 2020
+1
605
10
+479
help pls anybody
A boat can cover 12 km up the stream and 75% of that distance down the stream in 6 hours. Find the speed of the boat in still water if the speed of the stream is 41 2/3 meters per minute.
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HelpBot
Nov 18, 2020
0
724
1
Let d be a positive number such that when 109 is divided by d
Let d be a positive number such that when 109 is divided by d, the remainder is 14. Compute the sum of all possible two-digit values of d.
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Guest
Nov 18, 2020
0
652
1
penny reads 11 pages in 1/2 hour. What is the unit rate for pages per page?
penny reads 11 pages in 1/2 hour. What is the unit rate for pages per page?
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Guest
Nov 18, 2020
Nov 17, 2020
0
620
1
What percent of 5x
What percent of 5x is equal to x/8?
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Guest
Nov 17, 2020
0
325
1
Suppose ten distinct, positive integers
Suppose ten distinct, positive integers have a median of 100. ("Distinct integers" means that no two integers are the same.) What is the smallest the average of those ten integers could be?
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Guest
Nov 17, 2020
0
941
1
Find the radius r of each circle if the area of the sector is 18.
Find the radius r of each circle if the area of the sector is 18.
The drawing is a circle with one160 degrees
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Guest
Nov 17, 2020
0
474
3
+22
CAN SOMEONE PLEASE HELP ME FASTT
factor
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happypotato
Nov 17, 2020
0
339
1
MAY I HAVE HELP PLEASE
factor 81t^8. +1
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Guest
Nov 17, 2020
0
455
1
complex numbers
Find the square roots of 21 - 20*i.
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Guest
Nov 17, 2020
0
441
1
CAN SOMEONE HELP ME WITH THIS PLEASE?
Factor 81t^8 - 1
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Guest
Nov 17, 2020
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