Given: dr tangent to circle o.

ir db=140, then a=

a)70
b)110
c)140
d)80

the quiz says 140 is wrong, but i don’t know if that’s a problem on the teacher’s end or not, because everyone here says it’s 140

The average hourly earnings for a construction worker is projected to be $24.50 in 2012. jason wants to join the construction work force after he graduates in 2012. his friend tells him that average hourly earnings for construction workers will rise by 2% from 2009 to 2012. based on the data below, assuming that the projected hourly earnings are correct, is jason’s friend’s statement accurate? construction industry - average hourly earnings, 2000-2009 a. his friend’s statement is accurate. the average hourly earnings will increase by 2%. b. his friend’s statement is not accurate. the percent increase will be more than 2% c. his friend’s statement is not accurate. the percent increase will be less than 2% d. his friend’s statement is not accurate. the average hourly earnings will decrease

The square root of 9x plus 7 plus the square rot of 2x equall to 7

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g