Prove this trigonometric identity

sin 3x/sin x - cos 3x/cos x = 2

Sammy sold 5 water bottle for every 3 David sold. Together they sold 160 bottles. How many did each boy sell?

X + 7y = - 42 5x + 8y = - 48 A) (1, - 7) B) (0, - 6) C) (6,0) D) No solution

You bought a Toyota corolla in 2004 for 12500. this car's value depreciates by 7% a year. How much is the car worth now (2016) ? How much is it worth 2020?

Select the correct answer. Which data set has the greatest spread? Set A - {84, 91, 87, 77, 94, 89, 74} Set B - {89, 73, 84, 91, 87, 77, 94} Set C - {73, 84, 89, 88, 77, 91, 87, 90} Set D - {84, 89, 88, 82, 91, 87, 99} A. Set A B. Set B C. Set C D.

Todd begins piano practice ar 4:15 p. m. and ends at 5:50 p. m. How long does he practice

Which statement describes a cynlinder

Azul went shorking and he noticed that the ration of parrot fish to clownfish was 4:3. he saw 20 parrot fish how many clown fish did he see

Write an inequality for the given statement: 4 times the sum of a number and 3 is at least 28. a. 4x 3 is greater than or equal to 28b. 4 3x is greater than or equal to 28c. 4 (x 3) is greater than or equal to 28d.

How many pairs of parallel sides does the trapezoid below have

What is the value of h if h = 9.0? 100h = ?