For a scientific experiment, a physicist must make sure that the temperature of a metal does not get colder than −75°c or the metal will not be usable. the physicist changes the metal's temperature at a steady rate of −5°c per hour. part 1 out of 3 let t represent time in hours. enter an inequality. use the fact that the rate of change in temperature times the number of hours equals the final temperature. the inequality is?

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.

can i see the following ?

step-by-step explanation: