Select all the functions that have no real number solution. 4x^2 + 100 = 0 3x^2-9= 0 x²+1=0

Evaluate the integral. (sec2(t) i t(t2 1)8 j t7 ln(t) k) dt

Each of the four sides of a swimming pool measures 9 meters. the pool is 5 meters deep. how much water will be needed to fill it completely? a. 45 cubic meters b. 81 cubic meters c. 225 cubic meters d. 405 cubic meters reset next

In the rectangle below ac=30 units what is de