Answer:
To find the sum of an infinite geometric series having ratios with an absolute value less than one, use the formula, S=a11−r , where a1 is the first term and r is the common ratio.
Supplementary angles sum up to 180°, suppose the supplement of 161° is x. Then
161+x=180
solving for x we subtract 161 from both sides
161-161+x=180-161
x=19
thus the supplement is 19°
5 students scored a 90 or above. If you look at the axis that says “test scores” just count the number of dots on the “90” line and above
Answer: 31°
Since <DAB = 55° and <CAB = 24°, subtract 24 from 55.
55 - 24 = 31
6 = x + 2
Subtract 2 from both sides
6 - 2 = x + 2 - 2
4 = x
