Answer:
k=3
Step-by-step explanation:
2(4k+3)−13=2(18−k)−13
2(4k+3)−13=2(18−k)−13
(2)(4k)+(2)(3)+−13=(2)(18)+(2)(−k)+−13
8k+6+−13=36+−2k+−13
(8k)+(6+−13)=(−2k)+(36+−13)
8k+−7=−2k+23
8k−7=−2k+23
8k−7+2k=−2k+23+2k
10k−7=23
10k−7+7=23+7
10k=30
10k/10=30/10
k=3
Answer:
65.94 ft.
Step-by-step explanation:
pi*d=C
pi*21=65.94
For this case we have the following equation:

Where, we have the following variables:
x: time in seconds
y: speed in feet per seconds
For the initial velocity, we evaluate x = 0 in the given equation:

Therefore, the initial speed is 12 feet per second.
Answer:
The particle's initially velocity is 12.

Round to whichever place is needed
Answer:
3/1000 chance
Step-by-step explanation: