1. for which value of x is the expression log base 4 of (x+3) not defined?
a. 0
b. -2
c. 3
d. -4
2. if log 7= a, what is the value of log 490 in terms of a?
3. for what value of k will the graph of y=log base 7 of x contain the point (1,k)?

1foot = 12 inches; 1 yard = 3 feet

Given: pqrs is a parallelogram prove: pr and qs bisect each other at t

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.