Answer:
p=13, k = 3.25
Step-by-step explanation:
First, determine p:

Use this value in the second equation

and write the condition for that equation having equal roots, i.e., its determinant must equal 0:

Answer:
#7:
Slope: 4/7
Step-by-step explanation:
First off you need to graph these equation on a graph i recommend using Desmos, it is free you can search it up. After you graph you need to focus on rise/run. this is simple, count how many times you go up before you reach the point diagnolly, then go over however many until you reach the point. Write it in a fraction such as, 2/1, this would be your slope, 2.
I hope this helps!
Answer:
10x²-4x
Step-by-step explanation:
2x(5x-2)
clearing brackets by multiplying
=10x²-4x
i hope it will help you
Answer:
Step-by-step explanation:
Domain: ℝ
Range: [-3, ∞)
When x<4, the graph is decreasing.
When x>4, the graph is increasing.
Vertex (4, -3)
Answer:
82.5 km
Step-by-step explanation:
Given:

Cross-multiply.
2x = 11(15)
Divide both sides by 2 and solve for x.
x = 82.5 km
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