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All Questions
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231308 Questions
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243
5
+78
Linear inequalities
Find a linear inequality with the following solution set. Each grid line represents one unit.
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ILikeSushi
Jul 28, 2022
0
212
1
need some help
At the 2007 Math Olympics, Team Canada won $17$ out of a possible $100$ medals. Which one of the following is closest to the fraction of medals that they won?$$ \frac{1}{4} \qquad \frac{1}{5} \qquad \frac{1}{6} \qquad \frac{1}{7} \qquad \frac{1}{8} $$
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nerdiest
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Guest
Jul 28, 2022
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206
1
3d geometry
A cone is inverted and filled with water to 1/2 of its height. What percent of the cone's volume is filled with water? Express your answer as a decimal to the nearest ten-thousandth. (You should enter 10.0000 for 10\% instead of 0.1000.)
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Guest
Jul 28, 2022
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261
1
3d geometry
The three-dimensional figure shown is a right rectangular prism. What is the area of triangle PQR? Express your answer in simplest radical form.
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Guest
Jul 28, 2022
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287
1
help plz
A street has $50$ houses on each side, for a total of $100$ houses. The addresses on the south side of the street form an arithmetic sequence, as do the addresses on the north side of the street. On the south side, the addresses are $1,$ $5,$ $9,$ etc.,
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Guest
Jul 28, 2022
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215
1
Rationalize
Simplify and rationalize the denominator: 1/(1 + 1/(sqrt(3) + 2)).
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Guest
Jul 28, 2022
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198
1
help algebra
Let x and y be real numbers such that x^2 + y^2 = 4(x + y) + 12. Find the largest possible value of x.
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Guest
Jul 28, 2022
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334
1
Use the graph to convert 375 litres to gallons.
Use the graph to convert 375 litres to gallons.
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Guest
Jul 28, 2022
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219
1
Geometry problem
Equilateral triangle ABC has side length 6 cm and is inscribed in circle P. Congruent smaller circles centered at D, E and F are inscribed in the three regions between an arc of circle P and a side of triangle ABC, as shown. If segments AF, BE and CD all
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Guest
Jul 28, 2022
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198
1
help quadratic
Let a and b be the roots of the quadratic x^2 - 5x + 3 = 2x^2 - 7x + 11. Find the quadratic whose roots are a^4 and b^4.
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Guest
Jul 28, 2022
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226
2
counting problem
How many three-digit numbers are multiples of neither 5 nor 8?
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Guest
Jul 28, 2022
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198
1
geometry
When a circle has its radius increased by 1 cm, its area increases by 43 cm^2. To the nearest integer, how many centimeters was the radius of the circle before it was increased?
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Guest
Jul 28, 2022
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199
1
Algebra
Two of the roots of ax^4 + bx + c = 0 are -3 and 8. Find b.
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Guest
Jul 28, 2022
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173
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Projectiles Help
Hi, here is the question:
-A ball is kicked at a house window. The window is 4m up a vertical wall from a horizontal floor. The ball is kicked from a position 12m distance from the foot of the wall. If the ball enters the window at an angle of 30
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Guest
Jul 28, 2022
0
214
1
pls help
For how many integers $x$ do we have $\frac14 < \frac{x}{5} < \frac23$?
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Guest
Jul 28, 2022
0
244
6
Bob and Meena.
Bob and Meena play a two-person game which is won by the first person to accumulate 10 points. At each turn Bob gains a point with probability of 1/3. If he doesn't get a point, then Meena gets a point. Meena is now ahead 9 to 8. What is the probability
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Guest
Jul 28, 2022
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198
1
Casework Probability
In Ms. Smith's class, each student averages one day absent out of thirty. What is the probability that out of any two students chosen at random, one student will be absent while the other is present? Express your answer as a percent rounded to the nearest
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Guest
Jul 28, 2022
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141
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counting
How many numbers can you get by multiplying two or more distinct members of the set {1, 2, 3, 4, 5, 11, 12, 13, 14, 15} together?
Guest
Jul 28, 2022
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139
0
quadratic
The quadratic equation Ax^2 + Bx + C = 0 factors into linear factors with integer coefficients. Prove that the quadratic Ax^2 + 2Bx + 4C also factors into linear factors with integer coefficients. How do do the roots of Ax^2 + 2Bx + 4C = 0 relate
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Guest
Jul 28, 2022
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215
1
quadratic
Let a and b be the roots of the quadratic 2x^2 - 8x + 7 = x^2 - 5x + 3. Compute a^3*b + a*b^3.
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Guest
Jul 28, 2022
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137
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Inequality
Jeri finds a pile of money with at least $200. If she puts $60 of the pile in her left pocket, gives away 1/3 of the rest of the pile, and then puts the rest in her right pocket, she'll have more money than if she instead gave away $200 of the original
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Guest
Jul 28, 2022
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223
1
arithmetic series
What is 75 + 72 + 69 + 66 + ... + 21 + 18 + 15 + 12 + 9 + 6 + 3?
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Guest
Jul 28, 2022
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197
1
geometric probability
Let ABC be an equilateral triangle. A point P is chosen at random inside triangle ABC. Find the probability that P is closer to vertex A than to vertex B.
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Guest
Jul 28, 2022
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281
4
If (3x^2-4x+1)/(x-1) = m, and x can be any real number except 1, what real value(s) can m NOT have? Enter all the values, separate
If (3x^2-4x+1)/(x-1) = m, and x can be any real number except 1, what real value(s) can m NOT have? Enter all the values, separated by commas.
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Guest
Jul 28, 2022
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133
0
help plz
A list of 10 positive integers, each less than 15, has an average of 6. What is the maximum number of ones (the number 1, not the digit) that could be in the list?
Guest
Jul 28, 2022
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