Answer:
Step-by-step explanation:
•y-intercept is the 200 pages she has to read to begin with
•x-intercept on day 16 means she has finished reading all the pages, there are
zero pages left
•there are 100 pages left after 8 days
• the line is straight (no change in slope) so the reading rate was consistent over the 16 days.
Supplementary means that the angles have to add up to 180, so you have your equation.
180=5x+17x-18
198=22x
x=9
Then to find the measures of the angles, you plug x back in.
m∠ABD=5(9)=45 degrees
m∠BDE=17(9)-18=153-18=135 degrees
Sine of angle = opposite ÷ hypotenuse
sin 20 = 
x = 
x = 40.9 (rounded up to nearest tenth)
650mg per 1 mL, I'm not completely sure of the answer, as you did not provide enough information.<span />
Answer:
40°
Step-by-step explanation:
1. Shape of a nonagon: <em>9</em> (root non-)
2. Total exterior angle: <em>360°</em> (constant for all polygons)
3. Given that this polygon is regular, the one exterior angle of an nonagon is <em>360°/9</em> = 40°.
