Let f(x) = 3x^2 - 4 and g(x) = 2x^2 +5x - 7. Which statements below are true for f(x) + g(x) ? Select all that apply.

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

On new year's day, the average temperature of a city is 5.7 degrees celsius. but for new year's day 2012, the temperature was 9.8 degrees below the average. i) if a represents the average temperature on new year's day and 7 represents the temperature on new year's day 2012, what formula accurately relates the two values together? ii) what was the temperature on new year's day 2012? dt a 0.8 ii) - 4 1 degrees celsius da-t-98 ii) 59 degrees celsius 1) 7 = -9,8 11) 59 degrees celsius ii) l degrees celsius

Askateboard ramp is in the shape of a right triangle what is the height of the ramp