What is the solution of log z + 12 = 9?
1,000
-0.001
0.001
-1.000
Done

z =0.001

Step-by-step explanation:

log z + 12 = 9

Subtract 12 from each side

log z + 12-12 = 9-12

log z = -3

Raise each side to the base of 10

10^ log z = 10 ^-3

z = 10 ^-3

z =0.001

walter needs to make at least 5 more cookies but no more than 40. 5 ≥ x ≥ 40;

step-by-step explanation:

walter has to make a minimum of 20 cookies. he already has 15 cookies made, so he must make 5 more to meet the minimum.

the maximum amount of cookies he can make is 55. he already has 15, so he has to make no more than 40 more cookies to meet the maximum.