Answer:
4 3/4
Step-by-step explanation:
The answer for the question shown above is the second one, which is: The domain is all real numbers. The range is all real numbers greater than zero.
The explanation is shown below:
You have the following function given in the problem above f(x)= (1/5)^x. As you can see, it is a exponential function. By definition, the domain of the exponential functions is all the real numbers anf their range is all real numbers greater that zero.
F(-6) = 2(-6)+15(-6)-2 = -12-90-2 = -104
Answer:
- the roots are unequal (distinct)
- the roots are irrational
- the roots are real
Step-by-step explanation:
A description of the roots of a quadratic can be had by looking at the value of the discriminant: b²-4ac, where a, b, c are the coefficients of the standard-form quadratic.
Here, we have a=3, b=6, c=1 so the discriminant is ...
d = 6² -4(3)(1) = 24
This is a positive integer that is not a perfect square. This value means ...
- the roots are unequal (distinct)
- the roots are irrational
- the roots are real
_____
The interpretation of the discriminant is ...
- d > 0, distinct real roots
- d = 0, one real root with multiplicity 2
- d < 0, complex roots
If d is an integer that is not a perfect square, the roots (or their imaginary part) will be irrational.
