How is the measurement 0.65 cm written in scientific notation?

If sin θ=24/25 and 0 less than or equal to θ less than or equal to π/2, find the exact value of tan 2θ. answers; a) -527/336 b) -336/527 c)7/24 d) 24/7

Match each polynomial with its factorization.

Which of the following is true for the relation f(x)=2x^2+1