Select the number line model that matches the expression \left\lvert-\dfrac23 - \dfrac53\right\rvert ∣ ∣ ∣ ∣ − 3 2 − 3 5 ∣ ∣ ∣ ∣ open vertical bar, minus, start fraction, 2, divided by, 3, end fraction, minus, start fraction, 5, divided by, 3, end fraction, close vertical bar. choose 1 choose 1 (choice a) a (choice b) b (choice c) c none of the above

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.

Given a circle with measures of (c, d, and r) and a circle with measures of (c', d', and r'), what is d if c c' = 12 and d' = 0.50? a) 3 b) 6 c) 12 d) 24

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9