Bulbous

5 Questions
17 Answers

+2

398

1

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One more algebraic thing

If \[\frac{x-y}{x+y} = \frac52,\] find $\frac xy.$

Bulbous Aug 18, 2021

+2

507

6

+68

I know this is kind of easy but I'm stuck

Find the ratio $\dfrac{a}{b}$ if $\dfrac{a+b}{a-3b}=5$.

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Bulbous Aug 15, 2021

+2

409

2

+68

Help on one question

Let \[f(x) = \left\{
\begin{array}{cl}
x^2+1 &\text{ if }x>5, \\
2x-3 &\text{ if } -5 \le x \le 5, \\
3 &\text{ if } x <-5. <#> \end{array} <#> \right.\]

Find $f(-7)+f(0)+f(7)$

Bulbous Aug 12, 2021

+4

456

1

+68

Off - Topic Button

Hi Y'all,

2nd day on the forum.
read more ..

off-topic

Bulbous Aug 11, 2021

+6

376

0

+68

First Day - Web2.0Calc Forum

Hi Y'all,

Today was my first day answering questions on Forum.
read more ..

Bulbous Aug 10, 2021