Tell whether each angle is acute, right, obtuse or straight. 1. 22°
2. 100°
3. 90°
4. 63.5°
5. 180​

50 ! pls ! 12.  building codes regulate the steepness of stairs. homes must have steps that are at least 13 inches wide for each 8 inches that they rise.

a. discuss how to find the slope of the stairs.
b. describe how changing the width or height affects the steepness of the stairs.

Simply 8x squared + 5(7x squared- x) - 2x =

Is the power produced directly proportional to the wind speed, give reasons for your answer?