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Post New Question
All Questions
+0
231223 Questions
0
274
1
he who solves this is declared a genius
The difference between two positive integers is 12 and their product is 45. What is the sum of the integers?
Please include an explanation.
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Guest
Jul 22, 2021
0
371
1
help please
Find the largest possible value of $x$ in the simplified form $x=\frac{a+b\sqrt{c}}{d}$ if $\frac{5x}{6}+1=\frac{3}{x}$, where $a,b,c,$ and $d$ are integers. What is $\frac{acd}{b}$?
Please help me convert this to proper latex, also,
read more ..
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Guest
Jul 22, 2021
0
321
1
help counting
A class has 5 freshmen, 4 sophomores, 6 juniors, and 5 seniors. A committee is to be formed by selecting two members from the seniors and one member from each of the other grades. How many different committees are there?
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Guest
Jul 22, 2021
0
335
1
Circles
AB and CD are two chords of a circle that intersect at a point E. Arc AC has an arc measure of 84° and arc DB has an arc measure of 20°. What is the measure of ∠AED?
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Guest
Jul 22, 2021
0
334
1
Geometry
AB is tangent to a circle at the point B. AC is another tangent to the circle, with C being the point of tangency. The circle has radius 11 and the length of AB is 10. What is the length of AC?
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Guest
Jul 22, 2021
0
268
1
Answer question here
Let $DEF$ be an equilateral triangle with side length $3.$ At random, a point $G$ is chosen inside the triangle. Compute the probability that the length $DG$ is less than or equal to $1.$
(The answer is not 13.44% or 13.4%)
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Guest
Jul 22, 2021
0
328
2
help CPhill
Suppose we have a bag with $10$ slips of paper in it. Eight slips have a $3$ on them and the other two have a $9$ on them.
What is the expected value of the number shown if we add two additional $3$'s to the bag?
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Guest
Jul 22, 2021
0
407
1
+8
June Cleaver needs $2,000 in 7 years’ time so she can enroll in a review course in mathematics offered by Algonquin College. She can earn 9%
June Cleaver needs $2,000 in 7 years’ time so she can enroll in a review course in mathematics offered by Algonquin College. She can earn 9% compounded monthly at a small financial institution. How much must June deposit now to have $2,000
read more ..
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vishal
Jul 22, 2021
0
349
2
CPhill I need the answer
Suppose we have a bag with $10$ slips of paper in it. Eight slips have a $3$ on them and the other two have a $9$ on them.
What is the expected value of the number shown if we add one additional $3$ to the bag?
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Guest
Jul 22, 2021
0
240
1
Please answer question here
Suppose we have a bag with $10$ slips of paper in it. Eight slips have a $3$ on them and the other two have a $9$ on them.
What is the expected value of the number shown if we add one additional 9 to the bag?
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Guest
Jul 22, 2021
0
289
0
+28
If a, b and c are integers, with a^2,b^2 and c^2 each less than or equal to 100 and a+b+c= 2, what is the greatest possible value of the pro
If a, b and c are integers, with a^2,b^2 and c^2 each less than or equal to 100 and a+b+c= 2, what is the greatest possible value of the product abc?
tvesa
Jul 22, 2021
0
333
1
Ratios
What is the ratio of a:b, knowing that (a-b)/(a+b)=3/5
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Guest
Jul 22, 2021
0
404
1
+28
If a, b, c and d are positive integers such that ab = 192, bc =360 and cd = 750 what is the sum of all possible values of a + b + c + d?
If a, b, c and d are positive integers such that ab = 192, bc =360 and cd = 750 what is the sum of all possible values of a + b + c + d?
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tvesa
Jul 22, 2021
0
299
0
+28
Permutations and Combinations. I would like some help with this question.
Merlin is in charge of seating groups of knights around a circular table. Knights enter alone or in groups, and Merlin places them in a random set of adjacent seats at the table. If the knights arrive in groups of 2, 7, 3, 6, 1, 5, 2 and 1 (in that order),
read more ..
tvesa
Jul 22, 2021
0
292
0
+28
Please help me with this question.
Jody and Shelli each receive a box of buttons on Saturday and on Sunday. Each button is either red or white, and the number of buttons in each of the four boxes is from 1 to 100 inclusive. On both days, the percentage of red buttons in Jody's box is greater
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tvesa
Jul 22, 2021
0
339
2
Help!
Let 3x^2 +4x + c=0. What value of C will give us exactly one solution for X?
SWest
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Guest
Jul 22, 2021
-1
355
1
Domain
Suppose the domain of f is (-1,1). Define the function j by j(x) = f(1/sqrt(x)). What is the domain of j?
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Guest
Jul 22, 2021
0
996
2
Answer these questions please
Suppose we have a bag with $10$ slips of paper in it. Eight slips have a $3$ on them and the other two have a $9$ on them.
a) What is the expected value of the number shown when we draw a single slip of paper?
read more ..
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Guest
Jul 22, 2021
0
1
401
1
Mouse Maze
A mouse enters a maze, represented below, at its entrance at the top, and travels consistently downward toward the exit point shown at the bottom, taking no paths upwards or sideways.
How many paths are possible for the mouse to take?
read more ..
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Guest
Jul 22, 2021
0
338
1
Polynomials
Given that the polynomial x^2 - 15x + t = 0 has only positive integer roots, find the average of all distinct possible values of t.
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Guest
Jul 22, 2021
0
383
2
HALPPPPP! Please. I need help. Please.
HALPPPP! For a certain value of $k,$ the system \begin{align*} 3a + 4b &= 7,\\ 6a + 4b &= k- 4b \end{align*}has infinitely many solutions $(a,b).$ What is $k$? I had this question on my math test. Got my results, but they didn't tell me correct
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Guest
Jul 22, 2021
0
504
1
+28
Show that sin3θ = 3sinθ - 4sin^3θ , and cos3θ = 4cos^3θ - 3cosθ.
Show that sin3θ = 3sinθ - 4sin^3θ , and cos3θ = 4cos^3θ - 3cosθ.
textot
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tvesa
Jul 22, 2021
0
316
0
+28
Solve, in complex numbers, the quadratic equation z^2 − 8(1 − i)z + 63 − 16i = 0.
olve, in complex numbers, the quadratic equation z2 − 8(1 − i)z + 63 − 16i = 0.
tvesa
Jul 22, 2021
0
434
1
+28
Please help with this question about complex numbers. Find the absolute value of k.
If (x+iy)^3 = −74 + ki, find the absolute value of k, given that x=1 and i^2 =−1.
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tvesa
Jul 22, 2021
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