Solve the equation 2x^2 + 4x - 39 to the nearest tenth. Brainliest for real answers no troll answers please I had to delete the last guy's thing.

He amount of carbon-14 present in animal bones t years after the animal's death is given by p(t)equals=upper p 0 e superscript negative 0.00012097 tp0e−0.00012097t. how old is an ivory tusk that has lost 26% of its carbon-14?

20 da is equal to a. 2,000 cm. b. 2 m. c. 20,000 cm. d. 20,000 mm

Find the equation using the point (4,8)