Which value is in the domain of f(x)?
A. -7
B. -6
C. 4
D. 5

4

Step-by-step explanation:

There are 2 domains to consider

- 6 < x ≤ 0

Since the symbol on the left is less than - 6 then - 6 and - 7 are not included

The symbol on the right is less than or equal to 0 , thus no values

0 < x ≤ 4

Means values between 0 and 4, including 4

Thus the value on the domain of f(x) is 4

19.side- angle- side

20. angle- side- angle

step-by-step explanation:

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950