1. Mike is buying a new video graphics card for his computer. If x represents the kost prior to an 8.5% sales tax, which expression represents the total cost of the
graphic card?
a. X+0.085x
b. X- 0.085x
c. X+0.085
d. X-0.085

38 points!! Will give crown

Which expression is equivalent to (4 +6i)^2? ? -20 + 48i 8 + 12i 16 - 36i 20 + 48i

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %

Math question.. plz me .. best answer all