A group of 50 tourists can chose between visiting the Areospace museum of calgary, the calgary zoo or glenbow museum. 27 went to areospace, 29 went to the zoo and 33 went to glenbow museum. 44 went to at least one museum, 9 went t glenbow only and 11 went to all three. How many tourist went to only two attractions? Use a vern diagram in your answer.

the answer is 31.27mph

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: x=60