Although you could try to guess the magic number you would most likely exhaust your tries before getting the correct answer. To help you, the magic number is equal to 15×x, where x is a number between 1 and 10. magic number=15×x Hint 3. What is x?opened hint Recall that the previous hint stated that the magic number is equal to 15×x, magic number=15×x where x is a number between 1 and 10. Specifically x is an even number between 1 and 10. Try to guess the value of x. You may submit as many guesses as you need. Enter each guess into the answer box that follows.

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.

i am not sure :

step-by-step explanation:

a ≈ 172.05

step-by-step explanation:

the pictures.