Answer:
Step-by-step explanation:
explain the question pls so I can help
The answer is 2 since both
![\sin(x),\cos(x)\in[0,1]](https://tex.z-dn.net/?f=%5Csin%28x%29%2C%5Ccos%28x%29%5Cin%5B0%2C1%5D)
The maximum value of 
is 1 and the same for cosine. The sum becomes 1 + 1 which evaluates to 2.
Hope this helps.
Answer:
5^a= 1/5^3
5^a= 5^-3
a=-3
Step-by-step explanation:
Zero should be the answer
Let K and T be the speeds of Kirk and Thor respectively.
Note the standard definition that d=vt, distance equals velocity times time.
t=d/v
For Kirk, t=525/(T+5)
For Thor, t=490/T
Since we are told that they have traveled the same amount of time we can say t=t which leaves us:
525/(T+5)=490/T multiply both sides by T
525T/(T+5)=490 multiply both sides by T+5
525T=490T+2450 subtract 490T from both sides
35T=2450 divide both sides by 35
T=70
So Thor's average speed is 70kph, since K=T+5
K=75kph
So Kirk's average speed is 75kph
