Given:
Given the inequalities:4

Required: Identify the inequality in which x = 8 is a solution.
Explanation:
Substitute 8 for x in each inequality and check whether it satisfies the inequality.
Consider 4x + 3 > 0.

So, x = 8 satisfies the inequality 4x + 3 > 0.
Consider 9x - 5 < 100.

So, x = 8 satisfies the inequality 9x - 5 < 100.
Consider x + 4 ≤ 10.

So, x = 8 not satisfies the inequality.
Consider 72 ÷ x ≥ 4.

So, x = 8 satisfies the inequality.
Final Answer: The inequality in which x = 8 is not a solution is x + 4 ≤ 10.
Answer:120
Step-by-step explanation:
calculate the sum of the negetive numbers 3x-40
=120
Answer:
1/25
Step-by-step explanation:
square has 4 sides, if you add them all up you get 4/5.
1/5+1/5+1/5+1/5=4/5
so each side is 1/5
Area=length * width
A=1/5*1/5=1/25
Answer:
d. fourteen fortieths
Step-by-step explanation:
i believe this is correct.
The critical points are at x = 1 and x = 4 giving you the intervals (-inf, 1), (1, 4) and (4, inf).
By substituting x values in these 3 intervals, you can see that f'(x) is positive in the first and third intervals and negative in the second interval.
This means that f(x) is increasing in the first and third intervals and decreasing in the second interval.
The answer is D.