The next smaller hundred is 2800.
The next larger hundred is 2900.
2826 is closer to 2800 than to 2900. So the 'nearest' hundred is 2800.
It can only be simplified.
x^3-7x^2+2x=-9
Answer:
a) TRUE
b) FALSE
c) FALSE
d) TRUE
e) FALSE
Step-by-step explanation:
a)
TRUE because the slope of the correlation line is 2 and this is the rate of change of y respect to x
b)
FALSE
The correlation coefficient r is always between -1 and 1, so it can never be greater than one
c)
FALSE
A student might expect that there is a positive correlation between the age of their laptop and its resale value only if after collecting a large enough sample of data that relates age of the student and price of resale of their laptop, he or she finds that there is a positive correlation coefficient r>0
d)
TRUE
If there is a positive correlation, then the greater the x, the greater the y
e)
FALSE
If there is no correlation between the independent and dependent variables, then the value of the correlation coefficient must be 0.
Answer:
{(-1,4), (2,7), (3,7)} is a function
Step-by-step explanation:
For something to be a function, any given x must have one and only one y
{(-1,-3), (3,2), (3,7)}
-1(x) only has -3(y)
3(x) has 2(y) and 7(y), making it not a function
{(-3,7), (3,-7), (3,7)}
-3(x) only has 7(y)
3(x) has -7(y) and -7(y, making it not a function
{(-1,4), (-1,7), (3,5)}
3(x) only has 5(y)
-1(x) has 4(y) and 7(y), making it not a function
{(-1,4), (2,7), (3,7)}
-1(x) only has 4(y)
2(x) only has 7(y)
3(x) only has 7(y)
This is a function