Answer:
B
Step-by-step explanation:
We can figure out the initial value and base of an exponential function if the function is written in the form
where
a is the initial value, and
b is the base
<u>Note:</u> a ≠ 0 and b ≠ 1
Our equation given can be written in this form by writing it like 
Thus, this is an <em>exponential function</em>. The initial value is 1 and the base is 5.
The correct answer is B
Answer:
x = 19
Step-by-step explanation:
In an isosceles trapezoid the base angles are congruent, thus
5x - 20 = 2x + 37 ( subtract 2x from both sides )
3x - 20 = 37 ( add 20 to both sides )
3x = 57 ( divide both sides by 3 )
x = 19
This is an example of a random variable that follows Bernoulli distribution.
Whenever you perform
experiments, with probability
of success, the provability of havin
successes is

In this case, you have
(you choose a sample of 3 candidates),
(30% of candidates have a degree in economics) and we want
to be at least one.
One way to solve this is to consider that

But it is much quicker to observe that

And we have

So, the probability that at least one of them has a degree in economics is

Answer:
The amount of discount would be$1.20
The amount they pay would be $10.80
Step-by-step explanation: