Is this relation a function?

29. explain the error a student found the product of 8 × 10 6 and 5 × 10 9 to be 4 × 10 15 . what is the error? what is the correct product?

Which expression is equivalent to (4 +6i)^2? ? -20 + 48i 8 + 12i 16 - 36i 20 + 48i

Question 3(multiple choice worth 1 points) use the arc length formula and the given information to find r. s = 16 cm, θ = 48°; r = ? sixty divided by pi cm thirty divided by pi cm one third cm one hundred twenty divided by pi cm