Questions in mathematics

Questions in mathematics

[Done] How do you factor [tex]16x^2 - 72xy + 81y^2[/tex]?

[Done] What is 416 divided by 4?

[Done] A minute hand of a large clock is 6 ft long. How far does the point move in an hour?

[Done] Translate the question into an equation. Let \( x \) be the unknown number. 6.4 is 90% of what number?

[Done] What is the solution for \( r + 11 + 8r = 29 \)?

[Done] Use the quadratic formula to solve the equation: \[ 9x^2 - 6x - 11 = 0 \] Where the quadratic formula is given by: \[ x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} \]

[Done] Simplify the following expression: \[ 32.2 - (-15.9) + 10 - 15.9 + 7.8 \]

[Done] Convert the following equations to slope-intercept form: 1. \(2x + 8y = 12\) 2. \(x - 2y = 0\)

[Done] Solve the quadratic equation using the quadratic formula: \[ 2x^2 + 9x - 4 = 0 \]

[Done] Find the cube of 0.5.