Which represents a quadratic function?
f(x) = -8x3 - 16x2 - 4x
f(x) = x
x2 + 2x - 5
f(x) =
4
x2
2 + 1
X
f(x) = 0x2 - 9x + 7

The nth term of a sequence in 2n-1 the nth term of a different sequence is 3n+1 work out 3 numbers that are in bothe sequences and are between 20 and 40

Talia took the bus from her home to the bank and then walked back to her home along the same route. the bus traveled at an average speed of 40 km/h and she walked at an average speed of 5 km/h. to determine the time, x, that it took talia to walk home, she used the equation 40(0.9 – x) = 5x. the time of trip 2 is hours. the distance of trip 1 is km.

What is the measure of angle x? 37° 82° x°