Answer:
when x=0 then f(x) = -2
when x=1 then f(x) = 3
when x=2 then f(x) = 8
Step-by-step explanation:
you just plug in the x value given to you into the equation (which is 5x-2) so for example:
if x = 0 then:
5x-2 is instead 5(0)-2 which means you multiply 5 and 0 and then substract 2 because you have to follow PEMDAS
PEMDAS is (Parenthesis, Exponents, Multiplication, Division, Addition, Substraction) which is the order of priority to be solved, so you first solve parenthesis, then exponents, then you multiply or divide, and then you add or substract
easy way to remember PEMDAS: Please Excuse My Dear Aunt Sally, OR Please End My Depression And Suffering (my favorite way to remember, don't take that seriously tho >_>)
so because you have to multiply before subtracting you multiply 5 and 0, you get 0, and then you take away 2 which is -2
remember to just plug in your values and then do PEMDAS
hope you learned something :P
On average, the number of goals that a player will score for every additional hour of practice based on the regression is 4/5.
<h3>How to calculate the value?</h3>
It should bm be noted that based on the information given, the slope will be:
(y2 - y1)/(x2 - x1)
= (6 - 2)/(6.5 - 1.5)
= 4/5
Therefore, the number of goals that a player will score for every additional hour of practice is 4/ of a goal.
Learn more about regression line on:
brainly.com/question/6704074
#SPJ1
Answer: 39.308 pounds
Step-by-step explanation:
We assume that the given population is normally distributed.
Given : Significance level :
Sample size : n= 12, which is small sample (n<30), so we use t-test.
Critical value (by using the t-value table)=
Sample mean :
Standard deviation :
The lower bound of confidence interval is given by :-
i.e.
Hence, the lower bound for the 98% confidence interval for the mean yearly sugar consumption= 39.308 pounds
Z=11 is the answer for this problem