Which quadrilateral always has four congruent sides?
a. trapezoid
b. parallelogram
c. rectangle
d. rhombus

Im gonna fail 7th grade selective breeding 1. creates offspring which are genetically identical to the parent 2. is the process of breeding only organisms with desirable traits 3. involves the removal of the nucleus of a cell 4. combines traits from organisms of different species

How many different three-digit numbers can be formed using the digits 1 comma 2 comma 9 comma 6 comma 4 comma 3 comma and 8 without repetition? for example, 664 is not allowed.

Prove that (x-2)is factor of p (x)=2x³-3x²-17x+30