Answer:
6/63
Step-by-step explanation:
To find the probability in fraction form you must first add all the evidence together and then use that number as the denominator
Answer:
0
Step-by-step explanation:
Complete question:
Rich is comparing the cost of maintaining his car with the depreciation value of the car.
The value starts at $20,000 and decreases by 15% each year. The maintanance cost is $500 the first year and increases by 28% per year.
When will the maintenance cost and the value be the same.
Answer:
9 years
Step-by-step explanation:
Depreciation is modeled by an exponential function :
A = p(1 - r)^t [decrease, '-']
A = 20,000(1 - 0.15)^t
A = 20000(0.85)^t - - - (1)
Maintainace cost :
A = p(1 + r)^t ; [increase, '+']
A = 500(1 + 0.28)^t
A = 500(1.28)^t - - - (2)
Equating (1) and 2
20000(0.85)^t = 500(1.28)^t
1.28^t / 0.85^t = 20000/500
(1.28 / 0.85)^t = 40
Take log of both sides
Log (1.28 / 0.85)^t = log 40
t * 0.1777910 = 1.6020599
t = 1.6020599 / 0.1777910
t = 9.01
t = 9 years
Answer:
a) rational
b) rational
c)exponential
d) power function
e) polynomial function of degree 6
f) trig function
Step-by-step explanation:
Functions can be classified by the operations they contain. Remember the following functions:
- Power function has as its main operation of an exponent on the variable.
- Root function has as its main operation a radical.
- Log function has as its main operation a log.
- Trig function has as its main operation sine, cosine, tangent, etc.
- Rational exponent has as its main function division by a variable.
- Exponential function has as its main operation a variable as an exponent.
- Polynomial function is similar to a power function. It has as its main function an exponent of 2 or greater on the variable.
Below is listed each function. The bolded choice is the correct type of function:
(a) y = x − 3 / x + 3 root function logarithmic function power function trigonometric function rational function exponential function polynomial function of degree 3
(b) y = x + x2 / x − 2 power function rational function algebraic function logarithmic function polynomial function of degree 2 root function exponential function trigonometric function
(c) y = 5^x logarithmic function root function trigonometric function exponential function polynomial function of degree 5 power function
(d) y = x^5 trigonometric function power function exponential function root function logarithmic function
(e) y = 7t^6 + t^4 − π logarithmic function rational function exponential function trigonometric function power function algebraic function root function polynomial function of degree 6
(f) y = cos(θ) + sin(θ) logarithmic function exponential function root function algebraic function rational function power function polynomial function of degree 6 trigonometric function
