Answer:
7. 4
8. 7
Step-by-step explanation:
7. 
Cross multiply


(division property of equality)


8. 
Cross multiply


(addition property of equality)

Divide both sides by 6


The vertex of the graph of f(x)= |x-3|+6 is located at (3, 6)
<h3>How to determine the vertex?</h3>
The equation of the function is given as:
f(x) = |x - 3| + 6
The above function is an absolute value function.
An absolute value function is represented as:
f(x) = a|x - h| + k
Where:
Vertex = (h, k)
By comparison, we have:
Vertex = (3, 6)
Hence, the vertex of the graph of f(x)= |x-3|+6 is located at (3, 6)
Read more about vertex at:
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Step-by-step explanation:
5x^3+2x^2-4x-3
option b is correct answer
hope it helps you
Answer:

Step-by-step explanation:
In a right triangle:

Therefore, given:

Answer:
42
Step-by-step explanation:
5 more than 2 times the girls
89=5+2x
x=42