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All Questions
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230833 Questions
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551
1
i have no idea
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Guest
Jun 30, 2020
0
1854
1
sequence problem
A sequence of numbers begins 1, 1, 1, 2, 2, 3 and then repeats this pattern forever. What is the sum of 135th, 136th and 137th numbers in the sequence ?
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Guest
Jun 30, 2020
0
484
1
please help
I need help with this system:
What is x^2 + y^2 + z^2?
read more ..
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Guest
Jun 30, 2020
0
314
1
Help please!
A certain point has rectangular coordinates and polar coordinates What are the rectangular coordinates of the point with polar coordinates
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Guest
Jun 30, 2020
0
464
1
help
The difference of the roots of the quadratic equation x^2 + bx + c = 0 is -2. Find the discriminant of the given equation.
What do I do here?
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Guest
Jun 30, 2020
0
370
0
help with quadratic
The equation 2x^2 - 62x + k = 0 has two real roots, one of which is 1 more than twice the other. Find the value of k.
Guest
Jun 30, 2020
0
567
1
geometry
Katie and Beth had the same number of marbles on January 1st. By the end of the year, Katie's collection of marbles increased by 25% and Beth's decreased by 75%. On December 31st, the number of marbles Beth owned was what percent of the number
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Guest
Jun 30, 2020
0
667
1
Angle bisectors $\overline{AX}$ and $\overline{BY}$ of triangle $ABC$ meet at point $I$. Find $\angle C,$ in degrees, if $\angle AIB = 109^\
Angle bisectors $\overline{AX}$ and $\overline{BY}$ of triangle $ABC$ meet at point $I$. Find $\angle C,$ in degrees, if $\angle AIB = 109^\circ$.
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Guest
Jun 30, 2020
0
473
1
help
Marty has available a 20% alcohol solution and a 70% alcohol solution. How many liters of each solution should be mixed to make 30 L of a 50% alcohol solution?
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Guest
Jun 30, 2020
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336
0
hard equation
Solve
I got a hint that one root is an integer, but I don't know how to use that.
Guest
Jun 30, 2020
0
441
1
please help
Expand
I think I combine some term, but I'm not sure.
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Guest
Jun 30, 2020
0
546
1
geometry
In triangle ABC, D is the midpoint of AC, and E is the midpoint of AB. Find the ratio of the area of trapezoid BCDE to the area of triangle ABC.
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Guest
Jun 30, 2020
0
425
0
help
The median of $\{20, x, 15, 30, 25\}$ is $0.4$ less than the mean. If $x$ is a whole number, what is the sum of all possible values of $x$?
Guest
Jun 30, 2020
0
462
2
help
Which is bigger, or ?
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Guest
Jun 30, 2020
0
613
3
ASAP!!!!!
The graph of is reflected over the line . The new graph is the graph of the equation for some constants , , and . Find .
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Guest
Jun 30, 2020
0
484
1
quadratic
Solve (x + 1)^2 + 3^2 = 0. This is impossible, right?
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Guest
Jun 30, 2020
0
361
0
I need help ASAP
f(x)= 14x^3 + 15x^2 + 13x -10
g(x)= 15x^3 +13x^2 -10x +10
find g(-9) x f(8) - f(1) x f(-9)
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Guest
Jun 30, 2020
0
420
3
help me please ASAP!
The graph of is shown below. Find . (The distance between the grid lines is one unit.)
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Guest
Jun 30, 2020
0
395
0
help quickly
Find the equation of the line passing through (-7,0) that is perpendicular to the line 5x - 3y = 2. Enter the answer in standard form.
Guest
Jun 30, 2020
0
508
1
need answer fast
Find the equation of the line passing through (3,-3) and (5,6).
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Guest
Jun 30, 2020
0
430
1
+22
HELP QUICK!!
Find the value of $B - A$ if the graph of $Ax + By = 3$ passes through the point $(-7,2),$ and is parallel to the graph of $x + 3y = -5.$
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happypotato
Jun 30, 2020
0
811
1
+65
PLZ HELP ASAP!!! URGENT!!!
I have 5 different mathematics textbooks and 4 different psychology textbooks. In how many ways can I place the 9 textbooks on a bookshelf, in a row, if there must be a psychology textbook in the middle, and there must be a mathematics textbook at each
read more ..
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nicthemathwiz
Jun 30, 2020
+1
501
1
+34
Pls Help!
A bag has 4 red marbles, 5 white marbles, and 6 blue marbles. Three marbles are drawn from the bag (without replacement). What is the probability that they are all the same color?
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AppIePi
Jun 30, 2020
0
438
1
disa heer mat harrd cn I git zom asswers?
The line is an axis of symmetry of the graph of . Find .
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Guest
Jun 30, 2020
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