Answer:
Step-by-step explanation:
<h3>Given</h3>
- a = 2i + 9j, b = –4i + 5j, c = i – 3j, d = 14j
<h3>To find</h3>
<h3>Solution</h3>
- (a – b) – (2d – c) =
- 2i + 9j - (–4i + 5j) - (2(14j) - (i – 3j)) =
- 2i + 9j + 4i - 5j - 28j + i - 3j =
- (2 + 4 + 1)i + (9 - 5 - 28 - 3)j =
- 7i + (-27)j =
- 7i - 27j
12568/10000
The 10000 has four zeros, write 12568 as 12568.0, simply move the decimal point four places to the left, since 10000 has four zeros.
You have 1.2568 as the answer.
1) m=8d $40
2) d=15h 45 mi
3) less than one hour
5*sqr(2) is the right answer