Astudent needs to make a circular cardboard piece with an area between 154 square inches and 616 square inches. the function f(r) relates the area of the cardboard piece, in square inches, to the radius r in inches. which of the following shows a reasonable domain for f(r)?

a) 7 < r < 14
b)154 < r < 616
c) all positive integers less than 7
d) all positive integers between 14 and 154

question 35 (multiple choice worth 1 points)

(04.02)

an expression is shown below:

square root of 18 plus square root of 2

which statement is true about the expression?

a) it is rational and equal to 3.
b)it is rational and equal to 4.
c)it is irrational and equal to 3 multiplied by the square root of 2.
d) it is irrational and equal to 4 multiplied by the square root of 2.