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What is interval notation?
How do you find interval notation?
What is a closed interval notation?
Hey Reddit, I'm pretty sure this is close to right, however, I'm not sure how to write it.
https://prnt.sc/sh2mrx
A graphing calculator is recommended.
In this problem you are asked to find a function that models a real-life situation and then use the model to answer questions about the situation. Use the guidelines on page 237 to help you.
A box with an open top is to be constructed from a rectangular piece of cardboard with dimensions 14 in. by 30 in. by cutting out equal squares of side x at each corner and then folding up the sides (see the figure).
I'm trying to solve (b): (b) Find the values of x for which the volume is greater than 210 in3. (Round your answers to three decimal places. Enter your answer using interval notation.)
Basically, I took what I wrote in standard form, solved/converted the inequality, and plugged it into a graphing calculator and mathway.
4x3 - 88x2 + 420x > 210
After solving/converting, the answer I received was: (0.565, 6.029) U (15.405, infinity sign)