Which values of k would cause this system of equations to have no solution? Check all that apply.
6х + 4 y = 14,
3х + 2y = k
A. -2
B. 5
C. 7
D. 10
E. 21

How many grams must be adde to 970g to make 1 and a half kg

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 center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.