How do you prove this identity? Sin2x/2sinx=cosx

Rebecca has 30 paintings to sell. The amount of money rebecca. makes from selling x paintings is represented by a function. f (x) = 25x what is the practical domain of the function if rebecca sales 30 paintings

What is the solution to the equation One-fourth x minus one-eighth = StartFraction 7 Over 8 EndFraction + one-half x?

A local pizzeria offered a special. Two pizzas cost $14.99. A group of students spent less than $75. They purchased three pitchers of soda for $12.99. Hw many pizzas could the group purchase?

Find the domain and range of the sequence {2, 6, 18, 54, ...}. A. The domain is 1, 2, 3, 4. The range is 2, 6, 18, 54. B. The domain is all natural numbers. The range is each term of the sequence. C. The domain is each term of the sequence.

Complete the toble below. Percent = Decimal 11% = 6.5% - 0.26 -0.195 -111

When randomly selecting an adult, let B represent the event of randomly selecting someone with type B blood. Write a sentence describing what the rule of complements is telljng us: P (B or ¯ B ) = l.

Compute the amount of interest earned in the following simple interest problem A deposit of $1,295 at 7% for 180 days

How do you decide which of two numbers is greater when one number is positive and one number is negative

List numbers in order from least to greates 4,-6,0,8,-9,1,-3 what the answer

Solve 2x2 + 16x + 50 = 0.