Answer:
Step-by-step explanation:
Given
Required
Possible values of k
The general quadratic equation is:
Subtract and
Factorize:
Rewrite as:
Compare the above equation to:
For the equation to have two distinct solution, the following must be true:
So, we have:
Expand
Rewrite as:
Expand
Factorize
Factor out k + 6
Split:
or
So:
or k
To make the above inequality true, we set:
or
So, the set of values of k is:
Rocket will be in the air for 2 seconds.
Answer:
Answer:
The range is 15
Explanation:
The box and whisker plot is from 5 to 20
The range is:
20 - 5 =15
Answer:
48 might be
Step-by-step explanation:
i hope is right
Answer:
B
Step-by-step explanation:
2x+8=9
you want to isolate the variable so you subract 8 from both sides
2x=1
now you want x by itself so you divide by 2 on both sides
x=1/2 or x=0.5
Hope this helped :)