During a physics experiment, a class drops a golf ball of a bridge toward pavement below. The bridge is 75 ft high. The function h = -16t^2 +75 gives the golf ball's height h in feet above the pavement after t seconds. Use the graph of the function at the right. After how many seconds does the golf ball hit the pavement?

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.

answer: answer is b.

[m < b = 120º]

step-by-step explanation:

the square root of 16 is 4.

4*4 = 16