We have been given that a limited edition poster increases in value each year with an initial value of $18. After one year and an increase of 15% per year, the poster is worth $20.70.
We will use exponential growth formula to find our required equation.
We know that an exponential function is in form
, where
a = Initial value,
r = Growth rate in decimal form,
x = Time.
Let us convert 15% into percentage.

Initial value is 18.
Upon substituting these values in above formula, we will get:


Let us check our function by finding the value of poster after one year as:



Since the value of poster after 1 year matched with our findings, therefore, the equation
can be used to fund the value, y, after x years.
Answer:
allows us to accept the null hypothesis
Explanation:
The z test(in a normal distribution) score for the critical region determines whether we reject the null hypothesis(H0) or accept the null hypothesis(reject or fail to reject the null hypothesis). If we fail to reject the null hypothesis, then we have accepted the alternative hypothesis (H1). The critical region rejection for z test is calculated using alpha and z score, if z score is greater or less than alpha(positive or negative), we reject the null hypothesis.
Answer:
B- In Step 2, the associative property cannot regroup addition and multiplication.
im not sure is this id for sure the answer
Answer:
600
Step-by-step explanation:
6000÷10=600