Answer:
Part a) The approximate years were 1998 and 2008
Part b) The graph in the attached figure
Step-by-step explanation:
Part a) we have

For
Solve the quadratic equation


we know that
The formula to solve a quadratic equation of the form
is equal to
in this problem we have

so
substitute in the formula
therefore
The approximate years are
1997+11=2008
1997+1=1998
Part b)
Using a graphing tool
we have


The solution of the system of equations is the intersection point both graphs
The intersection point are (0.99,80) and (11.23,80)
see the attached figure
therefore
The solution part a) is correct
Since the total is 42 divide by two since they are the same length so it would be 21
484 oranges and 350 grapefruit
Step-by-step explanation:
because 350 plus 134 equals 484
410 ?
Explanation : 4 comes from what you subtract and 10 comes from what the question would be if it was added
18.03 inches
Put the dimensions into the pythagorean theorem, that will give you the answer.