Helene was given the following enlargement of a triangle. B 13 cm A 10 cm 12 cm 36 cm Figures not drawn to scale. What are the lengths of sides A and B? O A = 30 cm, B = 39 cm A = 30 cm, B = 48 cm O A = 20 cm, B = 26 cm O A = 20 cm, B = 33 cm

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

Prove that 16^4-2^13-4^5 is divisible by 11.

Ameteorologist is studying the monthly rainfall in a section of the brazilian rainforest. she recorded the monthly rainfall, in inches, for last year. they were: 10.4, 10.3, 11.7, 11.1, 8.0, 4.4, 2.6, 1.8, 2.5, 4.4, 7.3, 9.5 fill in the missing values in the formula. what is the variance?