the answer is x+y≤2
The sum of x and y is greater than or equal to 2
C I guess I was learning this in class but I'm not sure.
(a)
(b)
(c)
Solution:
To write each of the given expression in the form :
(a)
Using exponential rule:
(b)
Divide numerator and denominator by the common factor 2, we get
Using exponential rule:
(c)
Divide numerator and denominator by the common factor 7, we get
Using exponential rule:
Answer:
24 days
Step-by-step explanation:
The distance from A to B equals the distance from B to A.
Let the distance between A and B be d.
3 days = 72 hours
4 days = 96 hours
speed = distance/time
speeds are in miles per hour
speed from A to B = d/72
speed from B to A = d/96
difference in speeds:
d/72 - d/96 = d/288
The speed of the water is half of the difference.
speed = d/576
When the raft floats from A to B, it uses only the speed of the water.
d/576 / d/72 = 1/8
The speed of the water is 1/8 the overall speed of the trip from A to B, so traveling by the speed of the water alone must take 8 times longer than with the boat motor.
8 * 3 days = 24 days
(X+1)(x+7)
Hope this helps