The height of a book is estimated to be 27.7 cm. The exact height is 27.5 cm. Calculate the percent error.

Find the value of x for which the lines are parallel.

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers

In each of the cases that follow, the magnitude of a vector is given along with the counterclockwise angle it makes with the +x axis. use trigonometry to find the x and y components of the vector. also, sketch each vector approximately to scale to see if your calculated answers seem reasonable. (a) 50.0 n at 60.0°, (b) 75 m/ s at 5π/ 6 rad, (c) 254 lb at 325°, (d) 69 km at 1.1π rad.