Is the following definition of complementary reversible? if yes, write it as a true biconditional. complementary angles are two angles whose sum measures to 90 degrees.
a. the statement is not reversible.
b. yes, if angles are complementary, then their sums measure up to 90 degrees.
c. yes, angles are complementary if (and only if) their sum measures to 90 degrees.
d. yes, angles are complementary if their sum measures to 90 degrees.

Which of the following can be used to explain a statement in a geometric proof?

Data from 2005 for various age groups show that for each $100 increase in the median weekly income for whites, the median weekly income of blacks increases by $105. also, for workers of ages 25 to 54 the median weekly income for whites was $676 and for blacks was $527. (a) let w represent the median weekly income for whites and b the median weekly income for blacks, and write the equation of the line that gives b as a linear function of w. b = (b) when the median weekly income for whites is $760, what does the equation in (a) predict for the median weekly income for blacks?

Acompany made a profit of 75000 over a period of 6 years on an initial investment of 15000 what is the annual roi