Answer:
The arithmetic sequence given above has a first term (a1) equal to 3 and the common difference (d) equal to 6. The sum of the first n terms of the sequence is calculated through the equation,
Sn = (n/ 2) x (2a1 + (n - 1) x d)
Substituting,
S22 = (22 / 2) x (2x3 + (22 - 1) x 6) = 1452
Therefore, the answer is the first choice, 1452.
Step-by-step explanation:
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1/7 * 35 = 5
£5 for 1/7 of a day
Answer:
1) 14
2) m<1=47°
3) m<2=47°
Step-by-step explanation:
1) 75-2x=89-3x
-2x+3x=89-75
x=14
2) m<1=75-2x
75-2(14)
75-28
47
3) m<2=89-3x
89-3(14)
89-42
47
You can factor it by taking out the five, since it is a common factor of 5 and 15 (for example: 5(-x - 3) ), you can remove the negative value ( -1(5x+15) ), or your can remove the negative and the 5 (-5(x+3) ).