Sin8x=8sinxcosxcos2xcos4x

proving trig identity?

What is 60% of 30.00 when making a purchase for 30.00

What is angle of elevation and depression

The first figure of the Sierpinski triangle has one shaded triangle. The second figure of the Sierpinski triangle has three shaded triangles. The third figure of the Sierpinski triangle has nine shaded triangles.

We have 3 broken glasses for every 500. Write this as a fraction and as a percent

When adding or subtracting two equations causes the coefficient to result 0 the variable is said to be

Why do we never accept the null hypothesis or the research hypothesis? (instead we either reject or fail to reject) ?

What is 9,632 rounded to the nearest thousand

Write a quadratic equation in standard form -3x^2+x=13

If y=kx, what is special about k

1435.783 to the nearest cent