3/12 and 5/x are equivalent ratios. solve for x

Which statement is true 1.the pythagorean theorem can be used to find the missing side of any triangle 2.the pythagorean theorem can be used to find the missing side of any polygon 3. the pythagorean theorem can be used to find the missing side of any right triangle 4.the pythagorean theorem can be used to find the missing side of any isosceles triangle

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

Use the quadratic function to predict f(x) if x equals 8. f(x) = 25x2 − 28x + 585