What is the factorization of 49b^2 - 81?

A - (7b-9) (7b-9)

B - (7b-9 (b2^+9)

C - (7b2^-9) (7b2^-9)

D - (7b2^-9) (7b2^+9)

400 people are asked if they drink tea 7/10 say yes and 20% of the people who say yes drink three cups a day

The quotient of two whole numbers is a whole number

Graphing Logarithmic Function In Exercise, sketch the graph of the function. See example 1. y = In 2x

The expression 10 / (3 + i) is equivalent to: 1) 3 - i 2) (15 + 5i) / 4 3) 3 + i 4) 5/4

Bag of marbles has 5 blue marbles, 3 red marbles, and 6 yellow marbles. A marble is drawn from the bag at andom. How many possible outcomes are there? 3 O 5 6 14

Two lines, parallel to the bases of a trapezoid divide each leg into three congruent parts and divide the trapezoid into three parts as well. Find the area of the middle part if the top and bottom parts have area S1 and S3.

Robin is making bows to sell at her mother's yard sale. She will use 3/4 foot of red ribbon and 2/3 foot of blue ribbon to make each bow. What is the ratio of the length of red ribbon to blue ribbon?

Explain why the polynomial 144x2 - 200x + 81 is not a perfect square. A. 81x ≠ 2 (20x ∙ 9) B. 144x ≠ 2 (20x ∙ 12) C. 200x ≠ 2 (9x ∙ 12) D200x ≠ 2 (12x ∙ 9)

Two factors of - 48 have a difference of 19. The factor with a greater absolute value is positive. What is the sum of the factors? a. - 19 b. - 13 c. 13 d. 16

1.) A population of 4,250 blue whale. A random sample of 10 whales shows that 5 of them are infected. How many whales are likely to be infected?