use a protractor and a metric ruler to draw a right triangle so that one angle is 53 degrees and its adjacent side is 6.40 cm. then draw a second triangle with one angle of 53 degrees and an adjacent side of 4.0 cm. measure all the sides and proceed as above. do this carefully and accurately

a negative exponent is translated as follows:

so, we have

b. f(x) = –√x + 3this is the correct answer

multiplication is multiplication.   it might feel harder depending on what level of math you are in, but generally it will be the same old stuff, while implementing some new concepts and methods of solving work.