Semester test, part 2: semester b
answer the questions below. when you are finished, submit this assignment to your teacher by the due da
full credit
total score: __of 30 points
(score for question 1: _ 0f 10 points)
1. a restaurant has a 15% mandatory tip rate.
(a) complete the ratio table shown. show your work.
pre-tax bill ($) 10
tip (s)
60
12
15
(b) using the table, how can you find the total tip paid on s70?

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.

a

step-by-step explanation: