Answer: 8 (The second option).
Step-by-step explanation:
1. To solve this exercise you draw a line to a point O, this lines will bisect the angle of Z∠60°. Then will obtain two into two right triangles with two angles of 30° at the point Z.
2. The lenght XY will be twice the lengt XO or YO.
3. Let's calclate XO as following:
4. Then, XY is:
Answer
Given series,
12 + 18 + 24 + 30 + . . . + 198
first term of series, a = 12
common difference,d = 18- 12 = 6
Last term of the series, a_n or l = 198.
a) The expression of arithmetic sequence given by the explicit rule is
b) number of terms in the series
c) value of the series
Answer:
Hey
Step-by-step explanation:
Im not totally sure but I think it is 1 hour because if you double the people, the time should be split in half. I may not be correct. I hope this helped
Your answer would be B, $12/ 1 hour