The Roaming Cell Phone Company charges $15.00 per month plus $0.20 per minute of
1 answer:
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We effectively rewrite the equation as
In order for the LHS to be defined, we need to restrict , or
. Now, the LHS will vanish when the numerator is 0, which happens for
This value is indeed smaller than 4, so the solution is .
Answer:
22,999 feets
Step-by-step explanation:
Given the solution diagram attached,
The altitude, h of the plane can be solved using trigonometry :
Using :
Sin θ = opposite / hypotenus
Opposite = h
Hypotenus = 47440
Sin 29 = h / 47440
h = 47440 * sin29
h = 22999.368
h = 22,999 feets
Answer:
The system has infinitely many solutions.
(x, 1 - x, -3)
Explanation:
Writing the matrix in the form of a system of linear equations gives
Note that the third row does not give us any information on the values of x, y, and z.
Solving the first equation for y gives
Hence, the solution to the system is
Since x can take any value ranging from -∞ to ∞, the system has infinitely many solutions.