Breinor needed some school supplies to finish out the year. His mom bought him a 3-pack of pens for $3.59, a pack of highlighters for $5.15, and two notebooks for a $1.99 each. The sales tax is 8%. What was the total price she paid including tax? $12.72 $12.72

$13.74
$13.74

$10.73
$10.73

$11.59

Which function has an inverse function? a. f(x)= |x+3|/5 b. f(x)= x^5-3 c. f(x)= x^4/7+27 d. f(x)= 1/x²

Acompany made a profit of 75000 over a period of 6 years on an initial investment of 15000 what is the annual roi

I've been working on this for a few days and i just don't understand, it's due in a few hours. you. the direction of a vector is defined as the angle of the vector in relation to a horizontal line. as a standard, this angle is measured counterclockwise from the positive x-axis. the direction or angle of v in the diagram is α. part a: how can you use trigonometric ratios to calculate the direction α of a general vector v = < x, y> similar to the diagram? part b suppose that vector v lies in quadrant ii, quadrant iii, or quadrant iv. how can you use trigonometric ratios to calculate the direction (i. e., angle) of the vector in each of these quadrants with respect to the positive x-axis? the angle between the vector and the positive x-axis will be greater than 90 degrees in each case. part c now try a numerical problem. what is the direction of the vector w = < -1, 6 > ?