Given the four vectors in component form: a = 4i – 4j

b = –5i + 8j

c = –i – 3j

d = 6i + 2j

Choose the expression that produces the following resultant vectors.

6i + 9j =

2j =

–8i + 13j =

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.

When you answer this can you explain

Write an inequality for this description. - one fourth of the opposite of the difference of five and a number is less than twenty.