Prove - 1 - cos^2 x = sin^2 x

What is always true about a line that slants downward from left to right

40 meters to 16 seconds

F (x) = 2x^2 - 3x + 1

Barbras dog needs to walk each morning and evening Barbra and the dog walk 3/5 of a mile in 20 minutes in the morning and then the evening how many miles will Barbra travel in a week

With the values in the same order but with parentheses make the following sentence true 8x5-4*3+16:4=33

Your friend gives you $50 to gamble at a casino and you win 100,000 jow much did you give them

Find the 39th term of the arithmetic sequence that starts with 4 and has a common difference of 6. A. 232 B. 226 C. 238 D. None of these

Jeremy bought six and a half pounds of candy hearts and a card to give to his girlfriend on Valentine's Day he spent a total of $19.50 on both if the card cost a dollar fifty how much did he spend per pound on candy hearts

Whats 6x6+9-2-1= (my mom will not let me use a calculator)

What is 3y^2+3 (4y^2-2) ?