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All Questions
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231023 Questions
0
218
2
Not sure where to start
Joe had $475 more than Nigel at first. After Nigel spent 60% of his money and Joe spent 85% of his money to buy a present together for their friend, they were left with an equal sum of money. How much did the present cost?
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Guest
Jul 14, 2022
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137
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Triangle
Which of the following sets of numbers could not represent the three sides of a triangle?
\{8,14,20\}
\{4,6,7\}
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Guest
Jul 14, 2022
0
203
1
geometry
Points A, B, and C are placed on a circle centered at O as in the following diagram.
If AC = BC and angle OAC = 38 degrees, then how many degrees are in angle AOB?
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Guest
Jul 14, 2022
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211
3
Please Help FAST CPHILL OR MELODY OR ANYONE
The graph of is shown below.
For each point that is on the graph of the point is plotted , forming
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Guest
Jul 14, 2022
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191
1
help
Lizzie came up with a divisibility test for a certain number : Break a positive integer into two-digit chunks, starting from the ones place. (For example, the number 354764 would break into the two-digit chunks 64, 47, 35.)
Find the alternating
read more ..
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Guest
Jul 14, 2022
-1
206
1
system
Find all solutions to:
ab + 2a + 2b = −16
ac + 2a + 2c = 26
bc + 2b + 2c = −44
read more ..
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Guest
Jul 14, 2022
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149
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Function
Suppose that a and b are positive real numbers, and let
f(x) = ax if x = -4
f(x) = bx if x > -4
If f(-4)=-\frac{60}{13} and f(4)=3120, what is a+b?
read more ..
Guest
Jul 14, 2022
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210
7
Counting
Determine the number of fractions in the pattern below that are expressed in lowest terms.
Any explanation would be helpful!
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Guest
Jul 14, 2022
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138
0
conic sections
Find the asymptote of -4x^2 + y^2 - 2y = 3 + 4y - y^2 with positive slope.
Guest
Jul 14, 2022
0
142
0
graphing
Let
f(x) = 5x^2 + 6 if x <= a
f(x) = 11x if x > a
Find the smallest possible value for a if the graph of y = f(x) is continuous (which means the graph can be drawn without lifting your pencil from the paper).
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Guest
Jul 14, 2022
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175
1
Algebra
For how many real values of x is sqrt(120 - sqrt(x^2)) an integer?
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Guest
Jul 14, 2022
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176
2
Ratios
If a/b = 3/4 and a/c = 5 , what is b/c ?
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Guest
Jul 14, 2022
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189
1
Coordinates
What is the number of units in the area of the circle with center at P and passing through Q? Express your answer in terms of pi.
P = (0,0), Q = (8,-3)
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Guest
Jul 14, 2022
0
205
1
counting
The Happy Valley Kennel has 4 chickens, 1 dog, and 6 cats. (Some people in Happy Valley like to keep chickens as pets!) In how many ways can the 11 animals be placed in a row of 11 cages, such that all of the animals of each type are in adjacent cages?
read more ..
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Guest
Jul 14, 2022
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132
0
coordinates
The distance between the points (x, 21) and (4,7) is 20. Find the sum of all possible values of x.
Guest
Jul 14, 2022
0
130
0
Please Help ASAP Percents
A furniture store had a sale with 30% off all items. If the sale price for a chair was $42 , what was the original price, in dollars?
Guest
Jul 14, 2022
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211
1
Math
Robert had 5/6 as many erasers as Evan. When Evan gave half of his erasers to Robert, he then had 50 fewer erasers than his friend. How many erasers did Evan have at first?
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Guest
Jul 14, 2022
0
176
1
Help please
Noah is playing games on his computer. He finished 1/2 of the levels last week and 1/2 of the remaining levels this week. He had 7 more levels to complete. How many levels does the game have?
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Guest
Jul 14, 2022
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224
2
the height h in meters of an object at time t is given by h(t)=12t+18t^3/2-6t^2
the height h in meters of an object at time t is given by h(t)=12t+18t^3/2-6t^2
what is the height of the object at the instant when it reaches maximum velocity
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Guest
Jul 14, 2022
0
213
2
help geometry
The vertex of the right isosceles triangle is the center of the square. Each leg of the right isoscles triangle is 6. What is the area of the overlapping region?
read more ..
BuilderBoi
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Guest
Jul 14, 2022
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176
1
Algebra
For what value of the constant a does the system of equations below have infinitely many solutions?
2x + 5y = -8
6x - 2y = 16 + a - 15y
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Guest
Jul 14, 2022
0
175
1
probability
A bag has 4 red marbles, 5 white marbles, 6 blue marbles, and 7 green 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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Guest
Jul 14, 2022
0
182
1
conic section
Determine if the graph of the equation below is a parabola, circle, ellipse, hyperbola, point, line, two lines, or empty. Enter the most specific answer.
y^2 - x^2 +5y - 25 = 0
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Guest
Jul 14, 2022
0
179
1
conic section
Determine if the graph of the equation below is a parabola, circle, ellipse, hyperbola, point, line, two lines, or empty. Enter the most specific answer.
(x-3)^2 + y^2 + 10 = 0
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Guest
Jul 14, 2022
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