Lisa represented the phrase '9 less than a number' with the expression 9-n. Is her expression correct? Explain why or why not.

Suppose a man is heterozygous for heterochromia, an autosomal dominant disorder which causes two different‑colored eyes in an individual, produced 25‑offspring with his normal‑eyed wife. of their children, 15 were heterochromatic and 10 were‑normal. calculate the chi‑square value for this observation.

What is the value of x? enter your answer in the box. x = two intersecting tangents that form an angle of x degrees and an angle of 134 degrees.

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2