In trevor's biology class, the students tested for bacteria on a kitchen sponge. they found that there were approximately 17,000,000 bacterial colonies on a single sponge. express their findings in scientific notation.

a.1.7 × 10 7
b.1.7 × 10 6
c.0.17 × 10 8
d.17 × 10 6

Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.

The function v(r)=4/3pir^3 can be used to find the volume of air inside a basketball given its radius. what does v(r) represent

Which of the following shows the length of the third side, in inches, of the triangle below