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All Questions
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234932 Questions
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664
1
Help, The graph of a certain quadratic $y = ax^2 + bx + c$ is a parabola with vertex $(-4,0)$ which passes through the point $(1,-75)$.
Help, The graph of a certain quadratic $y = ax^2 + bx + c$ is a parabola with vertex $(-4,0)$ which passes through the point $(1,-75)$. What is the value of a?
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Guest
Jul 15, 2020
0
359
0
Angle bisector question
Point S is on triangle the angle bisector A of triangle ABC. If BS=CS, is ABC icosceles?
Guest
Jul 15, 2020
0
335
0
help with geometry
Lines AB and CD (if present in the picture) are straight lines. Find x.
Guest
Jul 15, 2020
0
518
2
+980
Two problems I need some help with
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read more ..
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qwertyzz
Jul 15, 2020
+1
458
1
+28
Right-Triangle Trigonometry
In triangle , we have , , and . What is ?
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awnrs
Jul 15, 2020
0
371
1
need help with counting
In poker, how many 5-card hands are three-of-a-kind? I keep getting the wrong answer.
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Guest
Jul 15, 2020
0
769
2
help me pls!!!
Without multiplying, determine the sign of the product (−247,634)(183,758).
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Guest
Jul 15, 2020
0
358
1
I really need help!
Fred the ant is on the real number line, and Fred is trying to get to the point 0.
If Fred is at 1, then on the next step, Fred moves to either 0 or 2 with equal probability. If Fred is at 2, then on the next step,
read more ..
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Guest
Jul 15, 2020
+1
488
1
+335
Halp
The equation $y = -6t^2 + 43t$ describes the height (in feet) of a projectile $t$ seconds after it is launched from the surface of Mars at 43 feet per second. In how many seconds will the projectile first reach 77 feet in height? Express your answer as
read more ..
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Rayjplayz
Jul 15, 2020
0
330
0
geometry
Triangle ABC is equilateral. Line segments ED and FG are perpendicular and share the same length. Line segment ED is parallel to AC. What is x/s if x is the length of either ED or FG and s is
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Guest
Jul 15, 2020
0
589
1
+80
Casework counting
The six faces of a three-inch wooden cube are each painted red. The cube is then cut into one-inch cubes along the lines shown in the diagram. How many of the one-inch cubes have red paint on at least two faces?
read more ..
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Unicornrabbit
Jul 15, 2020
0
477
1
64 Liters
There is a container with 64 liters of pure alcohol. 32 liters were poured out of the container and replaced with pure water. How many times should you repeat this operation to get a solution with only 2 liters of alcohol?
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Guest
Jul 15, 2020
0
517
1
Halp!!!
The system of equations \[\frac{xy}{x + y} = 1, \quad \frac{xz}{x + z} = 2, \quad \frac{yz}{y + z} = 3\]has exactly one solution. What is $z$ in this solution?
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Guest
Jul 15, 2020
0
321
0
algebra
f(x) is a quadratic polynomial whose graph passes through the points (0,5), (2,21) and (1,8). What is the product of the solutions to the equation f(x) = 0?
Guest
Jul 15, 2020
0
295
0
Someone please help!
https://web2.0calc.com/questions/help-asap_60784
Guest
Jul 15, 2020
0
454
2
Fraction question
Help Please
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Guest
Jul 15, 2020
+2
520
1
+367
PLEASE HELP ASAP
The equation relates the height (in meters) to the elapsed time (in seconds) for a ball thrown downward at 3.5 meters per second from a height of 2.4 meters from the ground. In how many seconds will the ball hit the ground?
read more ..
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imdumb
Jul 15, 2020
0
493
1
equation of line
If the graph of the line y = ax + b passes through the points (4,5) and (8,11)$, what is a - b?
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Guest
Jul 15, 2020
+8
411
0
+568
Very hard question. Melody or CPhill plz help.
Solution A is an 80% acid solution. Solution B is a 30% acid solution.
(a) Find the amount of Solution A (in mL) that must be added to 500 mL of Solution B in order to produce a 70% acid solution.
(b) Find the amount of Solution A and Solution
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iamhappy
Jul 15, 2020
0
326
2
HELP ASAP!!!
Fred the ant is on the real number line, and Fred is trying to get to the point 0.
If Fred is at 1, then on the next step, Fred moves to either 0 or 2 with equal probability. If Fred is at 2, then on the next step,
read more ..
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Guest
Jul 15, 2020
+8
469
2
+568
Any help would be appreciated Melody or CPhill help please.
The system of equations
has exactly one solution. What is in this solution?
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iamhappy
Jul 15, 2020
-1
551
1
Hard Prob Thanks!
Please just give a hint not an answer. Thanks!
If $x$ is a positive integer such that $1^{x+2} + 2^{x+1} + 3^{x-1} + 4^x = 1170$, what is the value of $x$?
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Guest
Jul 15, 2020
0
333
0
trig problem
Find cos theta.
Guest
Jul 15, 2020
0
660
2
+80
Casework Counting
The six faces of a three-inch wooden cube are each painted red. The cube is then cut into one-inch cubes along the lines shown in the diagram. How many of the one-inch cubes have red paint on at least two faces?
read more ..
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Unicornrabbit
Jul 15, 2020
0
526
2
percent
Rice is 20% costlier than wheat. By how much percent is wheat cheaper than rice?
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Guest
Jul 15, 2020
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