Simplify.
(-2w2+5w-4) + (3w? +7w+6)
Answer ASAP
Will give brainlest

For the equations below which statement is true ? -2x=14 6x=-42

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3

Sarah used her calculator to find sin 125 degrees. she wrote down sin sin125 degrees.57. how could sarah recognize that her answer is incorrect?