Determine if the number below is written in correct scientific notation, and why or why not. 56.987 x 10 exponent 5

Tori examined the pattern of exponents in the table. based on the pattern, which statements are true? check all that apply.

Write two subtraction equations that are equivalent to 5 + 12 = 17.

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6