Twenty billion is how much than nine billion, write the answer in scientific notation

1. If cscθ=5/3 then secθ= a. 25/16 b. 5/4 c. 16/25 d. 4/5 2. Simplify the expression (cos x) (sec x) - (sin2 x) a. cos x b. cos2 x c. sec2 x 3. If θ is in Quadrant IV and sinθ=-5/4 then secθ= a. - 13/12 b. - 12/3 c. 12/13 d. 13/12

Which one is bigger 900cm or 9,000mm

Leona has a bag containing letter tiles which describes dependent events?

The function f (x) = 4 (2) ^x represents the number of people who share a cat video

What is a negative times a negative equal

Find the vertex of the parabola whose equation is y=x^2+6x+2

Willie runs 5 miles in 25 minutes. If Willie runs at the same rate, how far can he run in 70 minutes?.

Which algebraic expression represents the phrase "the quotient of negative eight and the sum of a number and three"?

Explain how you can use a table of values, an equation, and a graph to determine whether a function represents a proportional relationship.

The daily cost C (in dollars) for manufacturer to produce x electronic video components is given by C (x) =