siIviajendeukie

151 Questions
13 Answers

0

1

0

+629

Complex Numbers

Let $x$ and $y$ be complex numbers. If $x + y =2$ and $xy = 5 - x^2 + xy - y^2$, then what is $x^2 + y^2$?

siIviajendeukie 8 mins ago

0

1

0

+629

Algebra

Compute
1 + \frac{3}{7} + \frac{5}{7^2} + \frac{7}{7^3}

siIviajendeukie 13 mins ago

0

1

0

+629

Algebra

Compute
1 + \frac{3}{4} + \frac{5}{4^2} + \frac{7}{4^3}

siIviajendeukie 19 mins ago

0

1

1

+629

Algebra

A geometric sequence has 400 terms. The first term is 1600 and the common ratio is $-\frac{1}{2}.$ How many terms of this sequence are greater than 1000?

siIviajendeukie 1 hour ago

0

1

0

+629

Algebra

Find all c such that |c + 5| - 3c = 10 - 5|c - 1| + 7|c + 8|.

siIviajendeukie 4 hours ago

0

1

0

+629

Algebra

Assume that $f(3) = 4$. Name a point that must be on the graph of y= f(2/5*x + 4) + f(3x - 1) .

siIviajendeukie 5 hours ago

0

1

0

+629

Algebra

Let a(x) and b(x) be functions. Find (a\circ b)(3) - (b\circ a)(3) if $a(x) = 2x + 5$ and $b(x) = 4 - x^2$.

siIviajendeukie 6 hours ago

0

1

0

+629

Number Theory

Find the largest positive integer n for which there exist positive integers a, b, and c such that
\gcd(a + 3b, b + 3c, c + 3a) = nabc

siIviajendeukie 29 oct 2024

0

1

0

+629

Number Theory

Let N be the number of ordered 6-tuples (a_1, a_2, a_3, a_4, a_5, a_6) of positive integers that satisfy
\frac{1}{a_1} + \frac{1}{a_2} + \frac{1}{a_3} + \frac{1}{a_4} + \frac{1}{a_5} + \frac{1}{a_6} = 6.
Find the remainder when N is divided lee mas ..

siIviajendeukie 29 oct 2024

0

1

0

+629

Number Theory

Let a, b, and c be integers such that 7a + 4b = 3c. Find the largest integer that always divides $abc$.

siIviajendeukie 29 oct 2024

0

1

0

+629

Algebra

The function f(x) is defined for 1 \le x \le 5 as follows:
f(x) = 2x + 8 if 1 \le x \le 2
f(x) = 13 - 5x if 2 < x \le 3
f(x) = 20 - 14x if 3 < x \le 4 lee mas ..

siIviajendeukie 21 oct 2024

+629

0

The answers are A = 1, B = -3, C = 5, D = -2, E = -4, and F = 8.

siIviajendeukie1 hour ago

+629

0

The sum of the series is 9/4.

siIviajendeukie1 hour ago