Use arithmetic sequence in order to get to answer:
a_n= a₁ rⁿ⁻¹
r is a common ratio, a₁ is the first term and a_n is the summation.
a_n= 1 (2/1)¹⁵⁻¹= 16384 pennies
1/5 of an hour is 12 minutes. 60 seconds x 12 minutes= 720 seconds
For this case we have the following vectors:
a = 3i + 8j
b = -0.5i - 4j
Using product point we have:
a.b = (3i + 8j). (- 0.5i - 4j)
a.b = (3) * (- 0.5) + (8) * (- 4)
a.b = -1.5 + -32
a.b = -33.5
Answer:
The point product is given by:
a.b = -33.5
B. -33.5
when rounding numbers: if it's four or less, you round down. if it's five or more, you round up. 9 is bigger than 4, so the nearest whole number is 830.
