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All Questions
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152250 Questions
-1
63
2
+1028
help
The red parabola shown is the graph of the equation . Find .
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Logic
Jul 15, 2019
-1
71
7
+1028
help
Geometrically speaking, a parabola is defined as the set of points that are the same distance from a given point and a given line. The point is called the focus of the parabola and the line is called the directrix of the parabola. Suppose
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Logic
Jul 15, 2019
0
71
1
+59
If the least common multiple of two 6-digit integers has 10 digits, then their greatest common divisor has at most how many digits?
If the least common multiple of two 6-digit integers has 10 digits, then their greatest common divisor has at most how many digits?
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BIGChungus
Jul 15, 2019
-1
54
1
+1028
help
Find the vertex of the graph of the equation .
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Logic
Jul 15, 2019
-1
71
2
+1028
help
I choose a random integer between 1 and 10 inclusive. What is the probability that for the I chose, there exist no real solutions to the equation ? Express your answer as a common fraction.
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Logic
Jul 15, 2019
0
55
1
+1028
help
The expression can be written as a combination of a square of a binomial and an integer. Find the integer.
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Logic
Jul 15, 2019
+1
85
13
+187
help please!
How many five digit even integers have a digit sum of 13?
edit: i dont want them listed I want a way to do it
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Mathgenius
Jul 15, 2019
Jul 14, 2019
+1
74
2
+437
Help
Let a_n be the number obtained by writing the integers 1 to n from left to right. Therefore, a_4 = 1234 and a_12 = 123456789101112. For 1≤n≤100, how many a_n are divisible by 9?
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xXxTenTacion
Jul 14, 2019
+1
56
0
+91
HLP
A polynomial of degree $13$ is divided by $d(x)$ to give a quotient of degree $7$ and a remainder of $3x^3+4x^2-x+12$. What is $\deg d$?
Pushy
Jul 14, 2019
0
66
3
Question
A shop sells 500 smartphones a week for each. A market survey shows that each decrease of on the price will result in the sale of an additional 10 smartphones per week. What price of the smartphone would result in maximum revenue,
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Guest
Jul 14, 2019
0
50
3
Help please
1) Find a/b when
2) For each positive integer p, let b(p) denote the unique positive integer k such that . For example, b(6)=2 and b(23)=5. Find .
3) William Sydney Porter tried to perform the calculation
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Guest
Jul 14, 2019
0
56
1
Help please
The quadratic ax^2 + bx + c can be expressed in the form 2(x - 4)^2 + 8. When the quadratic 3ax^2 + 3bx + 3c is expressed in the form n(x - h)^2 + k, what is h?
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Guest
Jul 14, 2019
0
59
1
Help on this function problem. I don't understand the process!
A function is defined by f(0) = 0 and f(n) = f(n − 1) + 2n, for n > 0. Find f(4).
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Guest
Jul 14, 2019
+1
62
2
+1450
help me please
What is the locus of the centers of all circles that are tangent to both of two parallel lines
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ManuelBautista2019
Jul 14, 2019
0
43
1
Please help
Find the integer $n$, $0 \le n \le 6$, such that \[n \equiv 100000 \pmod{7}.\]
Sorry, the LaTeX got mixed up.
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Guest
Jul 14, 2019
0
49
1
Polar Equation Interval
State the smallest interval 0 <= theta <= k that gives the complete graph of the polar equation
r = 4cos(5*theta)
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Guest
Jul 14, 2019
+1
60
2
+437
Number Theory Help
Find the smallest positive integer N with the following property: of the three numbers N, N+1, and N+2, one of them is divisible by 2^2, one of them is divisible by 3^2, one is divisible by 5^2, and one is divisible by 7^2.
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xXxTenTacion
Jul 14, 2019
0
77
3
double trouble 2.0
A:
If I choose four cards from a standard -card deck, with replacement, what is the probability that I will end up with one card from each suit?
B:
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Guest
Jul 14, 2019
0
33
0
help
In how many ways can I place 5 different beads on a bracelet if rotations and flips of the bracelet are not treated as different arrangements?
Guest
Jul 14, 2019
0
50
2
Help please fast!
In the SmallState Lottery, three white balls are drawn (at random) from twenty balls numbered 1 through 20, and a blue SuperBall is drawn (at random) from ten balls numbered 21 through 30. When you buy a ticket, you select three numbers from 1-20 and one
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Guest
Jul 14, 2019
0
80
8
+1034
HW PROB WARNING (again...)
This time, I want to CHECK my answer with you smart people. PROBLEM: Consider the parabola . What is the vertex of this parabola?
Enter your answer as a coordinate pair, that is, as where and are replaced by numbers.
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tommarvoloriddle
Jul 14, 2019
0
79
4
+133
Help
The graph of the function is shown below. For all , it is true that . If , where and are integers, then find .
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Havingfun
Jul 14, 2019
Jul 13, 2019
+1
78
3
+26
very long math question
what is 11,111,111,111,111,111,111 minus 2,222,222,222?
the number with 1s has 20 1s and the number with 2s has 10 2s
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musicalnote
Jul 13, 2019
0
63
3
Help plz
Let f(x)=x+1 and g(x)=2x. Also denote the inverses to these functions as f^-1 and g^-1. Compute
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Guest
Jul 13, 2019
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