Answer: 12+4+4
Step-by-step explanation:
Because if you add those together you get 20 miles per hour
For # 1, the answer will be 1 because of the exponential rule

.
#2, the answer is going to be

because of the exponential rule

.
#3. I'm not sure that this could be simplified any further.
#4 To get the answer to this question, we must apply the distributive property, along with the exponential rule
. When we apply these properties, we'll get

For the other questions, they all apply the Laws of Exponents.
Answer:
nb bhvghvghvhjhkj
Step-by-step explanation:
bjnbhv hgv
Answer: Marvin will earn $10,681.77 more in interest than Luis
Step-by-step explanation: A = P(I+r)t
Answer:

along the direction 68.19° from north.
Step-by-step explanation:
Given,
- speed of the boat, u= 2 miles/hour along north
- speed of the river, v= 5 miles/ hour along east
Since, north and east are perpendicular to each other, so we can write the resultant velocity in vector form as,

Hence, the magnitude of resultant velocity can be written as



Hence, the magnitude of resultant vector is \sqrt{29} moles/hour.
And the direction of the boat can be given by,



= 68.19°
Hence, the resultant velocity of boat is
miles/hour along the direction making an angle 68.19° with the north.