Determine whether the following statement is true or false. Explain. Inferences based on voluntary response samples are generally not reliable. Choose the correct answer below. A. False, because individuals who volunteer are least likely to have personal bias. B. False, because a surveyor cannot force volunteers to respond. C. True, because it is often the case that the individuals who volunteer do not accurately represent the population. D. True, because the group that volunteers may not be a large enough sample size.

use formula for the circle a=3.14

step-by-step explanation:

the ratio of balloons to tables is 5: 2 and the constant variation is 5.

the equation is y=5x

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for