Answer:
Step-by-step explanation:
Answer: C
Step-by-step explanation: The sign wouldnt be greater than or equal to because he wants to spend less than 250.
<span>√130 is already simplified </span>
Answer:
Inequality: 
Solution: 
Step-by-step explanation:
He has 435 stamps in his collections.
He will collect d stamps, and he wants to collect at least 815 stamps, that is, the sum of 435 and d has to be at least 815.
So the inequality is given by:

And the answer is given by:


Answer:


Step-by-step explanation:
Solving (a):

Required: Time to hit the ground
This means that H = 0
So, we have:

Rewrite as:

Solve for t using:




Split:
or 
or 
or 
Time can not be negative. so: 
Solving (b):

Required: Time to hit the ground
This means that h = 0

Rewrite as:

Solve for t using:




or 
or 
Time can not be negative. So:

