11/4/22 Logs Test ( Pre Calculus

log_x1000=3

• 1

• 10

• 30

• 3

Tags

CCSS.HSF.BF.B.5

log₈₁x = 3/4

• 2

• 3

• 27

• 81

Solve:
log x + log 8 = 2 

• 10
• 12.5
• 15
• 17.5

log (x - 1)  - log (x - 2)  = log 5

• 7
• 4/9
• 9/4
• 1/7

log₂(2) + log₂(8x) = 6

• x = 3
• x = 2
• x = 6
• x = 4

Solve:
log₄x² - log₄(x-1) = 1

• 4
• 3
• 2
• 1

Solve:
log₉(x)+log₉(x+2)=log₉(35)

• 5
• -7
• 5, -7
• -7, -13

Write log_b(x/y) as two logs

• log_bx-log_by
• log_bx+log_by
• log_bx*log_by
• log_bx/log_by

Use multiple log properties to write as a single log:
log₂x -  5log₂y

• log₂(x/y⁵)
• log₂(xy⁵)
• log₂(x/y)⁵
• log₂(x/5y)

Solve for x:  log₆x + log₆(x-5) = 2

• √7
• 9
• 4
• none of these