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Post New Question
All Questions
+0
234927 Questions
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269
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Algebra
Find the set of all z such that neither 2+z nor 2-3z is in the interval (-1,2]. Express your answer as an interval or as a union of intervals.
Guest
Jun 28, 2021
0
404
5
Inequality problem
The distance between the points (x,21) and (4,7) is 10sqrt(3) Find the sum of all possible values of x.
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Guest
Jun 28, 2021
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434
2
help please
Find the ordered pair that satisfies the system of equations
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Guest
Jun 28, 2021
0
617
5
Counting & Probability Problem
There is a total of 70 squares of three sizes whose vertices are points on this rectangular $3\times n$ grid of points. What is the value of $n$?
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Guest
Jun 28, 2021
0
394
3
Algebra
If x+y=9 and xy=18, what is the value of x^3+y^3?
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Guest
Jun 28, 2021
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514
1
Math
A jam recipe requires 3 quarts of raspberries. Raspberries are available in 1.5 pint containers at a grocery store. How many containers are required for the recipe? (please show your work)
ElectricPavlov
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Guest
Jun 28, 2021
0
338
1
algebra
Find constants a and b such that (2x + 17)/(x^2 - x - 2) = a/(x - 2) + b/(x + 1) for all x such that x≠-1 and x≠2.
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Guest
Jun 28, 2021
0
377
4
Help counting
How many ways can you arrange 2 boys and 3 girls in a line, if the 2 boys must stand next to each other?
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Guest
Jun 28, 2021
0
388
2
quadratic
The quadratic x^2 + 5x + c = 0 has roots in the form of $x = \frac{-5 \pm \sqrt{17}}{2}$. What is the value of ?
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Guest
Jun 28, 2021
0
345
1
help word problem
A father is 9 times as old as his son. In three years, the father will be 6 times as old as his son.
How old is the son?
ElectricPavlov
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Guest
Jun 28, 2021
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220
0
algebra problem
Find all the values of a for which the equations
x^2 + ax + 1 = 0
x^2 - x - a = 2
read more ..
Guest
Jun 28, 2021
0
339
1
geometry
Two sides of a parallelogram are 30 and 20. One diagonal has a length of 40. What is the length of the other diagonal?
ElectricPavlov
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Guest
Jun 28, 2021
0
369
1
geometry
In an isosceles △ABC (AC = BC) its incircle touches the side BC at point T. Given AC = 4 and AT = 3. Find the length of AB.
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Guest
Jun 28, 2021
0
400
3
help math
There are several flyers that need to be printed. Working alone, Printers A, B, and C can finish the task in 3, 4, and 8 hours, respectively. If we use all three printers simultaneously, how many minutes will it take to finish the printing task?
<
read more ..
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Guest
Jun 28, 2021
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392
1
help plz
If each dimension of a rectangle decreases by 1, its area will decrease from 2017 to 1917. What will be the area of the rectangle if each of its dimensions increases by 1?
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Guest
Jun 28, 2021
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373
1
help math
What is the units digit of the sum of all positive multiples of 6 smaller than 600?
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Guest
Jun 28, 2021
0
337
0
Eight trials are simulated. The results are shown in the table.
Eight trials are simulated. The results are shown in the table.
Simulation
105 104 110 112 114 106 108 109
read more ..
Guest
Jun 28, 2021
0
506
2
PLZ ANWR QUICK
Suppose that is a nonzero constant for which the equation has only one solution. Find this solution.
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Guest
Jun 28, 2021
0
348
1
Probability
Randomly selecting a page in a booklet, the chance to get an even page number is 7/15. How many pages does the booklet have?
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Guest
Jun 28, 2021
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372
2
help algebra
What is the positive solution to the equation x = 1/(2 + 1/(x + 2)) ?
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Guest
Jun 28, 2021
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385
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+115
Fun alternative to Wolfram Alpha
I have absolutely no idea how to make this into an off topic thread, so I'll wait for a moderator...
I found a better alternative to wolfram alpha...
read more ..
off-topic
OofPirate
Jun 28, 2021
-1
422
3
Exponent Question Please Help Fast
What is the tens digit of $17^{1993}?$
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Guest
Jun 28, 2021
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488
5
+368
hey guys, i have a quesiton on how to add these binomials
hey guys, i have a quesiton on how to add these binomials
99c3 + 99c5 + 99c7 + ... + 99c97
read more ..
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Badada
Jun 28, 2021
+1
468
4
+37
Repeating decimal eh pal? .
Find the digit past the decimal point in the expansion of .
thanks for thy help!
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Skripple
Jun 28, 2021
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