Is square root 1 minus cosine squared theta = −sin θ true? if so, in which quadrants does angle θ terminate?

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

Which table represents a linear function? i'll give brainliest to first answer ^'^

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?