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Post New Question
All Questions
+0
230427 Questions
0
59
1
what multiplies to -18 but adds to 3
what multiplies to -18 but adds to 3
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Guest
Jun 1, 2023
0
47
0
trapezoid
Can anyone help with this?
Let ABCD be a trapezoid with bases AB and CD. Let P be a point on side CD, and let X, Y be the feet of the altitudes from P to AD, BC respectively. Prove that if AD = 5, BC = 7, AB = 6, CD = 12,
read more ..
Guest
Jun 1, 2023
+1
56
3
+7
Having trouble with this NRP
What are all the integer triples (a,b,c) that satisfy the equation ab+ac+bc=a+b+c+abc?
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ethiosvulcan
Jun 1, 2023
0
55
0
help with system
plz help with systems
For certain values of k and m, the system
3a + 2b = 2
6a + 2b = k + 3a + mb
read more ..
Guest
Jun 1, 2023
0
49
0
help plz
this might seem easy but i am easily confused.
Find the number of ways that Magnus can give out 10 identical stickers to 8 of his friends. (Not everyone has to get a sticker.)
Guest
Jun 1, 2023
+2
53
3
+25
Please Help
For what positive integers $c$, with $c < 100$, does the following quadratic have rational roots? \[ 3x^2 + 20x + c \]
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Guythatneedshelp
Jun 1, 2023
0
48
0
need help
I am really stuck on this
In how many ways can three pairs of siblings from different families be seated in two rows of three chairs, if siblings may sit next to each other in the same row, but no child may sit directly in
read more ..
Guest
Jun 1, 2023
0
57
0
altitudes
I need help with altitudes
Triangle ABC has altitudes AD, BE, and CF. If AD = 12, BE = , and CF is a positive integer, then find the largest possible value of CF.
Guest
Jun 1, 2023
0
40
0
+274
Double Check Help
In this problem: https://web2.0calc.com/questions/the-entire-graph-of-the-function-f-x-is-shown-below_1, i'm not sure if the answer is 1 or not. Can someone double check?
supremecheetah
Jun 1, 2023
0
51
1
7m+11=-4(2m+3)
7m+11=-4(2m+3)
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Guest
Jun 1, 2023
0
47
1
solve
Five times a number is divided by 7 more than the number. If the result is 0, then what was the original number?
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Guest
Jun 1, 2023
0
49
0
triangle
In triangle $ABC,$ $\angle A = p + 2q$ degrees, $\angle B = 6p - 8q$ degrees, and $\angle C = 17p + 2q$ degrees. Find $p$ (in degrees).
Guest
Jun 1, 2023
0
52
1
help with equations
Im having trouble with this
One ordered pair (a,b) satisfies the two equations ab^4 = 48 and ab = 72. What is the value of b in this ordered pair? (Note: you may have to use the Tab key to get your cursor into the middle answer box
read more ..
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Guest
Jun 1, 2023
0
45
0
0.01875=0.050 * x * sen 37 + 0.025 * y * cos 66
0.01875=0.050 * x * sen 37 + 0.025 * y * cos 66
Guest
Jun 1, 2023
0
46
0
help me
Triangle XYZ is equilateral. Points Y and Z lie on a circle centered at O, such that X is the circumcenter of triangle OYZ, and X lies inside triangle OYZ. If the area of the circle is , then find the area of triangle
read more ..
Guest
Jun 1, 2023
0
54
1
Kindly help to solve this question please…
At first, on a bookshelf, 7/10 of the books were non-fiction books and the rest were fiction books. 1/3 of the fiction books and 1/7 of the non-fiction books were removed. Twelve non-fiction books were removed. How many books were left on the
read more ..
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Guest
Jun 1, 2023
0
49
1
Help pls
A minimart had some rice. An equal amount of rice was sold each day. At the end of the 7th day, the minimart was left with 1/4 of the amount of rice it had at first. At the end of the 9th day, it was left with 25 kg of rice. How much rice did the minimart
read more ..
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Guest
Jun 1, 2023
0
48
0
right triangle
Let ABC be a right triangle, and let H be the point on side AB so that CH is perpendicular to AB. Prove that (x + h)^2*(y + h)^2 = (a + b)^4.
Guest
Jun 1, 2023
0
52
0
system
I need help with this
For certain values of k and m, the system
3a + 2b = 2
6a + 2b = k + 3a + mb
read more ..
Guest
Jun 1, 2023
0
52
0
help plz
Help Im bad at geometry
In triangle AB, let the angle bisectors be BY and CZ. Given AB = 16, AY = 16, and CY = 16, find BC and BZ.
Guest
Jun 1, 2023
0
48
0
solve
Solve for the variable x in terms of y and z, assuming y \neq \frac{1}{2}:
xy + x = \frac{3x + 2y + z + y + 2z}{3}
Guest
Jun 1, 2023
0
46
0
i need help plz
Help me I don't know
In triangle ABC, point X is on side BC such that AX=13,BX=10,CX=10, and the circumcircles of triangles ABX and ACX have the same radius. Find the area of triangle ABC.
Guest
Jun 1, 2023
0
55
3
Please Help
Compute
\[\frac{1}{1 \times 4} + \frac{1}{4 \times 7} + \frac{1}{7 \times 10} + \dots + \frac{1}{97 \times 100}.\]
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Guest
Jun 1, 2023
0
47
0
need help
The system of equations
\[\frac{xy}{x + y} = 1, \quad \frac{xz}{x + z} = 2, \quad \frac{yz}{y + z} = 1\]
has exactly one solution. What is $z$ in this solution?
Guest
Jun 1, 2023
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