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All Questions
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216179 Questions
0
63
3
Percent
Pizzas are sized by diameter. What percent increase in area results if Chantel's pizza increases from an 8-inch pizza to a 12-inch pizza?
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Guest
Jul 5, 2022
0
55
2
math problem
What is the largest two-digit number that is divisible by both of its digits?
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Guest
Jul 5, 2022
0
51
2
help me please T^T
Lance has a regular heptagon (7-sided figure). How many distinct ways can he label the vertices of the heptagon with the letters in "OCTAGON" if the "N" cannot be next to an "O"? Rotations of the same labeling are considered equivalent.
read more ..
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Guest
Jul 5, 2022
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30
0
Algebra
Let a and b be real numbers such that a^3 + 3ab^2 = 679 and 3a^2 b + b^3 = -679. Find a + b.
Guest
Jul 5, 2022
0
53
1
Binomial Theorem
For some real number a and some positive integer n, the first few terms in the expansion of (1 + ax)^n are
1 - 20x + 180x^2 + cx^3 + ...
Find c.
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Guest
Jul 5, 2022
0
51
1
Polynomial
A polynomial with integer coefficients is of the form
\[2x^4 + a_3 x^3 + a_2 x^2 + a_1 x + 45 = 0.\]
Find the number of different possible rational roots of this polynomial.
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Guest
Jul 5, 2022
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54
4
Number Theory
For how many integer values of n between 1 and 1000 inclusive does the decimal representation of n/1375 + n/3 terminate?
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Guest
Jul 5, 2022
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46
1
Algebra
Given the following list of numbers: $\frac{3}{5}, \frac{5}{6}, \frac{2}{3}, -\frac{4}{7}, \frac{9}{8}, \frac{7}{9}, \frac{11}{10}, \frac{3}{4}$ what is the smallest number subtracted from the biggest number? Express your answer as a decimal.
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Guest
Jul 5, 2022
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47
0
+12
Nata's mother needs to pay the bill in bank 'A' for electricity for November.
Nata's mother needs to pay the bill in bank "A" for electricity for November. The cost of the service includes the commission
bank for the transfer is $565. If only Nata's mother paid for electricity at Bank B, where the transfer fee is twice as much,
read more ..
NikOL
Jul 5, 2022
0
71
1
Expand
Expand (2x - 1)^5*(2x + 1)^5.
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Guest
Jul 5, 2022
0
47
1
Digits
The sum of a 2-digit number and the 2-digit number when the digits are reversed is 77. If the difference of the same two numbers is 45, what are the two 2-digit numbers?
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Guest
Jul 5, 2022
0
36
0
Hyperbola
The asymptotes of a hyperbola are y = x + 1 and y = 3 - x. Also, the hyperbola passes through (3,6). Find the distance between the foci of the hyperbola.
Guest
Jul 5, 2022
0
40
1
plz help
Find positive integers (a,b) so that
(37 + 20*sqrt(3))^2 = a + b*sqrt(3).
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Guest
Jul 5, 2022
0
53
3
PLZ HELP
if 2n is a root of the equation in x, x^2-2mx+2n=0, then m-n=
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Guest
Jul 5, 2022
0
58
1
coefficient
Find the coefficient of u^2 v^9 in the expansion of (2u^2 - v^3)^4.
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Guest
Jul 5, 2022
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36
0
counting
In the expansion of $(ab + bc + ca)^{12}$, find the coefficient of $a^9 b^{12} c^3$.
Guest
Jul 5, 2022
0
56
0
+4
Question
There are 39 more red balls than yellow balls. 2/5 of the balls in a box are red. 5/8 of the remaining balls are blue. The rest of the balls are yellow. How many balls are there altogether?
ChiChi
Jul 5, 2022
0
33
0
Algebra
A and B are constants such that (4x - 5)/(x^2 + x - 2) = A/(x + 2) + B/(x - 1). Find B/(x + 1) - A/(x - 2).
Guest
Jul 5, 2022
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36
0
Parabola
The line x = k intersects the graph of the parabola x = -2y^2 - 3y + 5 + y^2 + 5y + 8 at exactly one point.z What is k?
Guest
Jul 5, 2022
+10
90
4
+1132
just a little algebra joke.
what do you call two friends in math class?
read more ..
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nerdiest
Jul 5, 2022
Jul 4, 2022
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40
0
Algebra
Let a, b, and c, be nonzero real numbers such that a+b+c=0. Compute the value of
Guest
Jul 4, 2022
0
35
0
Polynomials
Suppose P(x) = ax^2+bx+c and P(1) = 1,P(2) = 2, and P(3) = -4. Find a - b - c.
Guest
Jul 4, 2022
+10
72
9
+1132
algebrA
Find the minimum value of x^2+2xy+2y^2+4y+1 over all real numbers x and y.
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nerdiest
Jul 4, 2022
0
36
0
Algebra
Find all values of x such that x/(x - 5) = -4/(x - 4)
Guest
Jul 4, 2022
0
52
1
Logarithms
log_4(11)+ log_8(11)- log_64(11) + log_2(11) = log_b (m)
then what is the sum of b and m.
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Guest
Jul 4, 2022
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