Find a · b. |a| = 4, |b| = 7, the angle between a and b is 2π/3

The table shows the balance of a money market account over time. write a function that represents the balance y(in dollars) after t years.

Asquare has a perimeter of sixteen centimeters. what is the length of each of its sides? a. 8 cm c. 9 cm b. 4 cm d. 10 cm select the best answer from the choices

1) in triangle the, what is the measure of angle t (in degrees)? 2) in triangle bat, the measure of angle b is 66∘, and the measure of angle t is 77∘.what is the measure of the exterior angle at a (in degrees)?