Q23. Find the value of k, if x = 2, y = 1 is a solution of the equation 2x + 3y = k.​

Aflower has 26 chromosomes. to create a new flower,how many would a sperm cell have what is called?

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.