I am pretty sure you mistyped the rule.
The rule (x + 7, y - 3) moves the original coordinate right 7 units and down 3 units
Answer:
The 99% confidence interval is
Step-by-step explanation:
From the question we are told that
The sample size is n = 514
The sample proportion is
From the question we are told the confidence level is 99% , hence the level of significance is
=>
Generally from the normal distribution table the critical value of is
Generally the margin of error is mathematically represented as
=>
=>
Generally 99% confidence interval is mathematically represented as
=>
-(-z + 3) equals z - 3
5 = z - 3
z = 8
Answer:
D. N(a) = (a + 20)/3
Step-by-step explanation:
A(n) = 3n - 20
A is a function of n. The inverse will be: N is a function of a.
Change A(n) to y and n to x.
y = 3x - 20
Switch x and y.
x = 3y - 20
Solve for y.
x + 20 = 3y
3y = x + 20
y = (x + 20)/3
Now switch y to N(a) and x to a.
Answer: N(a) = (a + 20)/3