Which expression is equivalent to

(sin x + 1) (sin x - 1) ?

A.) cos^2x

B.) - cos^2x

C.) cos^2x + 1

D.) cos^2x - 1

E.) - cos^2x + 1

Un periódico puro tiene fracción generatriz?

The largest score in a distribution is 88 and the smallest is 14. You plan to construct a grouped distribution with 15 intervals. What will be the size of your class interval? (Statistics)

Luke has 15 coins. He has only nickels and dimes. If the total value of the coins is $1.20, how many nickels does he have.

Monique ran in a 5 km race how many meters did Monique run

For the parent function y equals the square root of x what effect does a value of b = - 2 have on the graph?

A science teacher has a supply of 20% saline solution and a supply of 50% saline solution. How much of each solution should the teacher mix together to get 60 ML of 28% saline solution for an experiment

There goes my hopes for Virtuoso rank ... What are the zeros of the function y = x2 + 10x - 171, and why?

Which is greatest ... 63 of 100, 60% of 80, 3/5 of 85,

John can eat 10 hot dogs in 4 mins. At this rate, how many hot dogs can he eat in 18 mins?

wo positive integers are 3 units apart on a number line. Their product is 108. Which equation can be used to solve for m, the greater integer? m (m - 3) = 108 m (m + 3) = 108 (m + 3) (m - 3) = 108 (m - 12) (m - 9) = 108