Q 15 Logarithms and Exponents

The scientific form of 79.69 is

• 796.9 × 107.969 × 10

• 7.969 × 10

• 79.69 × 10

• 7.969 × 10²

The decimal form of 0.59 × 10⁴

• 590

• 590000

• 59000

• 5900

We can write log 15 + log 7 in a single logarithm form as

• log (15 - 7)

• log(15 × 7)

• log 22

• log (15 + 7)

Log_aa equals to

• 0

• 1

• -1

• a

Log_aa equals to

• log_am + log_an

• log_am - log_an

• n log_am

• log_bn × log_ab

Log (M × N) equals to

• log M - log N

• log N - log M

• log M + log N

• MN

The scientific form of 0.425 is

• 4.25 × 10⁻¹

• 4.25 × 10

• 42.5 × 10

• 42.5 × 10²

Log_amⁿ equals to

• log_am + log_an

• log_am - log_an

• n log_am

• log_bn × log_ab

Log 13.4 ⁄ 23.6 equals to

• log 13.4 + log 23.6

• log 13.4 - log 23.6

• log 13.4 × log 23.6

• 1

Log_ba × log_cb can be written as

• log_ba

• log_cb

• log_ca

• log_bc