Plug n = 1 into the expression 20-9n and we get
20-9n = 20-9*1 = 20-9 = 11
So 11 is the first term of the series that we add up. Therefore the answer must be choice C, which has 11 listed as the first term added
The measure of <u>angle b</u> is 112° and the measure of <u>angle c</u> is 68°
<h3>Calculating the measures of angles </h3>
From the question, we are to determine the measures of the missing angles
From the diagram,
b = 112° (<em>Vertically opposite angles</em>)
∴ b = 112°
Also,
112° + c = 180° (<em>Sum of angles on a straight line</em>)
c = 180°- 122°
∴ c = 68°
Hence, the measure of <u>angle b</u> is 112° and the measure of <u>angle c</u> is 68°
Learn more on Calculating the measures of angles here: brainly.com/question/12274210
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Answer:
If you were solving for d it would be
Step-by-step explanation:
D=t*r
Answer:
16 and 22.5
Step-by-step explanation:
To find the mean, simply add all the numbers together and divide by the amount of values that are present in the data set.
1.) (20 + 15 + 19 + 16 + 10)/5 = 16
2.) (19 + 23 + 11 + 30 + 27 + 27 + 22 + 26 + 16 + 24)/10 = 22.5