For what positive real value of k, if any, is the determinant of the matrix {k/3 4/k} equal to k? (note: The determinant of matrix {a/c b/d) = ad-bc)

~options~
A. 3
B. 4
C. 12
D. (square root) 12
E. There is no value of K.

What additional information could be used to prove abc =mqr using sas? check all that apply.

Acable company claims that the average household pays $78 a month for a basic cable plan, but it could differ by as much as $20. write an absolute value inequality to determine the range of basic cable plan costs with this cable company. a. |x − 78| ≥ 20 b. |x − 20| ≥ 78 c. |x − 20| ≤ 78 d. |x − 78| ≤ 20

Ineed asap. 35 points. in order for two polygons to be similar, two conditions must be met. first, all pairs of corresponding sides must be in proportion. second, all corresponding angles must be congruent. prove that angle congruence is not enough, by itself, to establish that two polygons are similar. do this by describing or drawing two polygons that are not similar but whose corresponding angles are all congruent.