What is the value of x?

(Hint: 3x + 6 + 48 = 90, and solve)

3-12. write each answer with a reasonable number of figures. find the absolute uncertainty and percent relative uncertainty for each answer. (a) [12.41 (±0.09) + 4.16 (±0.01)] x 7.068 2 (±0.000 4) =? (b) [3.26 (±0.10) x 8.47 (±0.05)] - 0.18 (±0.06) =? (c) 6.843 (±0.008) x 104 + [2.09 (±0.04)- 1.63 (±0.01)] =?

You decide instead to take the train there. the train will take 135 minutes. convert this into hours and minutes.

What is coefficient of the term of degree of degree 5 in the polynomial below