Why is the number √−4 not a real number? (In case you couldn't tell, it says the square root of negative 4) Select one:
A. It contains a negative sign.
B. It contains a square root.
C. It contains the square root of a negative number.
D. It is a real number.

What is the factored form of the following expressions? d^2 – 13d + 36

Aflower has 26 chromosomes. to create a new flower, how many chromosomes would a sperm cell have? what is this process called? part 2: within a flower cell that has 26 chromosomes, how many chromosomes would a cell that is created within the stem of a flower as it grows, have? what is this process called?

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²