Answer:
a) k = -7
b) x = -5/4
Step-by-step explanation:
Substitute and solve for :
Plugging back in to :
Factor:
Answer:
f(x)= 2ˣ
We have to find x when f(x) is 8
8=2ˣ
we can write 8 in exponential form as 2³
2³=2ˣ
here base is same (2) on both left and right side
comparing the powers we get
x=3
:)
Its 45 because the triangle has to be 180 and there is a 90 degree angle in the square so 90 divided by two is 45
Answer: 5 hours
Step-by-step explanation:
Given: The distance between the cities Atlanta and Indianapolis=540 miles
The speed of motorcycle= 48 mph
Since,
Thus, time taken by car to travel the distance= 11.25-2.25= 9 hours
Let t be the time at which they will meet if they are moving towards each other simultaneously.
Then Distance covered by Motorcycle+Distance covers by car= 540 miles
Thus they will meet in 5 hours, after which time the motorcycle will have traveled
and the car will have traveled