Select true or false and your reasoning. (2 answers) 1. LaTeX: 10^{-5}=-10^510 − 5 = − 10 5

a. True

b. False

c. LaTeX: -50=-50− 50 = − 50

d. LaTeX: \frac{1}{100,000}\ne-100,000

2. Select true or false and your reasoning. (10^2)^-3= (10^-2)^3
a. True

b. False

c. LaTeX: -60=-60− 60 = − 60

d. LaTeX: 10^{-6}=10^{-6}

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Evaluate 3(a + b + c)squared for a = 2, b = 3, and c = 4. a. 54 b. 243 c.729 add solution .

Liz is shipping a package to her friend. the maximum weight of a medium flat-rate box is 20 pounds, including the box which weighs 6 ounces. write and solve an inequality to describe the possible weight in pounds, w, of the contents that liz will ship to her friend if she must use a medium flat-rate box. use the drop-down menus to explain your answer.