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Post New Question
All Questions
+0
236092 Questions
-2
20
1
+330
Number Theory
Find the smallest positive integer $N$ such that
N &\equiv 4 \pmod{6}, \\
N &\equiv 4 \pmod{10}, \\
N &\equiv 4 \pmod{15}, \\
N &\equiv 4 \pmod{24}.
●
Stanry
Jul 4, 2024
-2
15
1
+330
Number Theory
Find the smallest positive integer $N$ such that
N &\equiv 2 \pmod{3}, \\
N &\equiv 2 \pmod{7}, \\
N &\equiv 2 \pmod{10}.
●
Stanry
Jul 4, 2024
-2
16
1
+330
Number Theory
Find the smallest positive integer $N$ such that
N &\equiv 2 \pmod{5}, \\
N &\equiv 2 \pmod{7}.
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Stanry
Jul 4, 2024
+1
11
3
+948
Algebra
Find the constant k such that the quadratic 2x^2 + 3x + 8x - x^2 + 4x + k has a double root.
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Rangcr897
Jul 4, 2024
+1
16
1
+948
Algebra
Find the vertex of the graph of the equation y = -2x^2 + 8x - 15 - 3x^2 - 14x + 25.
●
Rangcr897
Jul 4, 2024
0
17
1
+948
Algebra
The parabola y = ax^2 + bx + c is graphed below. Find a + b + c. (The grid lines are one unit apart.)
The parabola passes through (-2,8), (0,0), and (2,8).
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Rangcr897
Jul 4, 2024
0
25
0
+948
Algebra
Fill in the blanks with numbers to make a true equation.
3x^2 + 12x - 4 - 2x^2 + 6x + 7 = ___ (x + ___ )^2 + ___
Rangcr897
Jul 4, 2024
0
19
0
+862
Algebra
Find all real values of $p$ such that
(x+1)(x-2p)
has a minimum value of 0 over all real values of $x$.
magenta
Jul 4, 2024
0
27
0
+862
Algebra
Let $c$ be a real number. What is the maximum value of $c$ such that the graph of the parabola $y = -6x^2$ has at most one point of intersection with the line $y = 5x+c?$
magenta
Jul 4, 2024
0
12
0
+862
Algebra
Let $x$ and $y$ be real numbers. If $x^2 + 3y^2 = 18$, then find the maximum value of $x + y$.
magenta
Jul 4, 2024
0
14
1
+862
Algebra
Let $x$ and $y$ be nonnegative real numbers. If $x + y = 25$, then find the minimum value of $6x + 3y.$
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magenta
Jul 4, 2024
0
19
1
+1839
Algebra
Find the domain of the function $f(x) = \sqrt{6-x-x^2-2x^2}$.
●
ABJeIIy
Jul 4, 2024
0
19
1
+1839
Algebra
Find the sum of all values of $k$ for which $x^2 + kx - 9x + 25 - 9$ is the square of a binomial.
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ABJeIIy
Jul 4, 2024
0
26
1
+1839
Algebra
Find the largest real number $c$ such that $1$ is in the range of $f(x)=x^2-5x+c-3x+8$.
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ABJeIIy
Jul 4, 2024
0
16
2
+8
Help me do the algebra question
For what values of j does the equation have exactly one real solution? Express your answer as a list of numbers, separated by commas.
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Iamrockingtoday
Jul 4, 2024
0
13
1
+157
Help!
Eddie, Freddy and Gary had 243 game tokens altogether. After Eddie gave 3/10 of his tokens to Freddy and 1/4 of his tokens to Gary, all three boys had the same number of tokens. How many tokens did Freddy and Gary have together at first?
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sugabreaddoughman
Jul 4, 2024
0
10
1
+157
Need help
Raju, Sam, and Tristan had 435$. Raju spent 4/5 of his money. Sam spent 2/3 of his money and Tristan spent 3/4 of his money. In the end, Raju has 55$ more than Sam. Tristan has $10 more than Sam. How much money Tristan has at first?
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sugabreaddoughman
Jul 4, 2024
0
23
0
+976
Algebra
For what values of $j$ does the equation $(2x + 7)(x - 4) = -31 + jx$ have exactly one real solution? Express your answer as a list of numbers, separated by commas.
Hi6942O
Jul 4, 2024
0
9
1
+976
Algebra
The entries in a certain row of Pascal's triangle are
1, n, \dots, n, 1.
The average of the entries in this row is 2. Find $n$.
●
Hi6942O
Jul 4, 2024
0
17
1
+976
Algebra
The system of equations \frac{xy}{x + y} = 1, \quad \frac{xz}{x + z} = 1, \quad \frac{yz}{y + z} = 1 has exactly one solution. What is $z$ in this solution?
●
Hi6942O
Jul 4, 2024
0
10
1
+976
Algebra
Find the number of ordered pairs $(a,b)$ of integers such that
\frac{a + 2}{a + 1} = \frac{b}{12}.
●
Hi6942O
Jul 4, 2024
+1
11
2
+40
word problem
In Mr. Patterson's class, the average score among students who studied for an exam was 78. The average among students who did not study was 54. The overall class average was 70. What portion of the class did not study? Express your answer as a common
read more ..
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onyulee
Jul 4, 2024
Jul 3, 2024
0
13
1
+842
Algebra
Find the largest value of $x$ such that $3x^2 + 17x + 15 = 2x^2 + 21x + 12 - 5x^2 + 17x + 34.$
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RedDragonl
Jul 3, 2024
0
11
1
+842
Algebra
The roots of Ax^2+Bx+1 are the same as the roots of x^2- 3x + 5 + x^2 - 2x + 1. What is A+B?
●
RedDragonl
Jul 3, 2024
0
12
3
+4
Something I randomly thought about
Hello, I'm interested in finding a general way to solve equations like the one below;
x+y+z=17,
xy+xz+yz=94,
xyz=168
read more ..
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Halprt
Jul 3, 2024
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