Find (1.6 x 108)(5.8 x 106) (4 x 106) , expressed in scientific notation. a) 1.05 x 108 b) 2.32 x 108 c) 2.32 x 109 d) 9.28 x 108

(1.6 x 10^8)(5.8 x 10^6)

(4 x 10^6)

multiply the numbers and add the exponent for the numerator

(1.6 x 5.8) x 10^(8+6)

(4 x 10^6)

(9.28) x 10^(14)

(4 x 10^6)

divide the numbers and subtract the exponents for division

(9.28/4) x 10^(14-6)

2.32x 10^(8)

Choice B

answer: 4

step-by-step explanation:

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m