We have the following vectors:
u = (a, b)
v = (c, d)
We observe that the vectors form an angle of 90 degrees.
Therefore, the product u.v is equal to zero.
We have then:
u.v = (a, b). (c, d) = 0
u.v = ac + bd = 0
ac = -bd
Answer:
B) ac = -bd
Answer:
62 is your answer
Step-by-step explanation:
6 × (36 ÷ 12)² + 8, you can also write 36 ÷ 12 as a fraction, which would look like this: 36/12
Step 1: 6 × 36/12² + 8 = 6 × 3² + 8
Step 2: Multiply 6 and 9
(6)(9)+8 = 54+8
Step 3: Then you add 54 and 9 and you get 62
Answer: 62
Answer:
The answer is B on Edge
Step-by-step explanation: $5,136; approximately 24 months
If she wants to earn $91, you would need to divide $91 by 13 to determine the number of hours she needs to work:
$91 /13 = 7 hours
She would have to work 7 hours.
Answer:
1. Attached
2. 25 mph
Step-by-step explanation:
1. Tim travels first 15 minutes 
hour at average speed of 40 mph and passed
2. Time stops for 25 minutes (distance traveled = 0 miles).
3. He then completes the journey at an average speed of 45 mph. The total journey time is 1 hour, then he was travelling at 45 mph for
and covered
The distance-time graph for his journey is attached.
Find the average speed for the whole journey:
