1. determine if the number is written in scientific notation if not explain 5.6x10^12
a no; it is not written as a power of 10
b no; the first factor is not a number between 1 and 10
c yes; the number is written in scientific notation
2. determine if the number 5.1x10^-8 is written in scientific notation if not explain
a yes; the number is written in scientific notation
b no; the first factor is not a number between 1 and 10
c no; it is not written as a number times a power of 10

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)] =?

What is perpendicular to y=-1/2x+11

Paula makes stained-glass windows and sells them to boutique stores. if her costs total $12,000 per year plus $4 per window for the frame. how many windows must she produce to earn a profit of at least $48,000 in one year if she sells the windows for $28 each? 1. define a variable for the situation. 2. write an inequality that represents her profit. note: revenue is money coming in. cost is money going out. profit is the difference between the revenue and the cost. in other words: revenue - costs profit 3.using words, describe how many windows she must sell to have a profit of at least $48,000.