Property of inverse functions:
Therefore the answer to both is True.
Answer:
The correct option is;
Marissa can talk for at most 192 minutes
Step-by-step explanation:
The amount for which Marissa buys the prepaid cell phone card = $25
The charge for a phone call using the recharge card = $0.13 per minute
The greatest number of minutes Marissa can call is given by the the following inequality;
t < $25/($0.13/minute)
$25/($0.13/minute) = (192 + 4/13) minutes
Therefore;
t < (192 + 4/13) minutes
The cost of 192 minutes = 192 minutes × $0.13 per minute = $24.96
The amount of credit left on the $25 recharge = $25 - $24.96 = $0.04
The minimum charge for calls = $0.13
The amount remaining after 192 minutes $0.04 is less than the amount to make a call $0.13
Therefore;
t ≤ 192 minutes
Therefore, Marissa can talk for at most 192 minutes.
Answer:
x = 30.66°
Step-by-step explanation:
The sum of the interior angles of a hexagon is 720°
Each angles are x^0, (5x - 103); (2x + 60), (7x - 31), (6x -6), and (9x - 100),
we add all these angles together
x^0 + (5x - 103) + (2x + 60) + (7x - 31) + (6x -6) + (9x - 100) = 720
x^0 = 1
1 + (5x - 103) + (2x + 60) + (7x - 31) + (6x -6) + (9x - 100)
1 + 5x - 103 +2x + 60 + 7x -31 + 6x - 6 + 9x - 100 = 720
1 - 103 + 60 - 31 - 6 - 100 + 5x + 2x + 7x + 6x + 9x = 720
1 - 180 + 29x = 720
-179 + 29x = 720
29x = 720 + 179 = 889
x = 889/29 = 30.655 ≅ 30.66°
Answer:
The square root of 81 is 9
Answer: 125/168
Explanation
