Yes, the table represents a function.
None of the independent (x) values are repeated and each one has a corresponding (y) value.
If you had a repeated (x) value in the table, it would not represent a function.
Answer:
1/(c - d)
Step-by-step explanation:
Multiply numerator and denominator by cd, then factor the denominator and cancel the common factor. (The result is restricted to c+d ≠ 0.)
Answer:
69.5
Step-by-step explanation:
Formula = 1/2 ( b1 + b2)h
base 1 + base 2 = 220
7645 x 2 = 14000 + 1200 + 80 + 10 = 15290
15290 / 220 = 764.5
H = 69.5
Lets check
1/2(220 x 69.5)
1/2(15290) = 7645
correct
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-Chetan K
Answer:
Step-by-step explanation:
We want to find
This can be rewritten as;
Recall that; 
We evaluate now to obtain;
The answer to this question is that the trains will meet after 3 hours.
We can work this out by considering that is the closing speed of the two
trains is (50+60=)110 miles per hour, then this must mean that the
combined distance that the trains need to travel before they meet is 330
miles. If the time that is taken to travel 330 miles at 110 miles per
hour, then you simply need to divide 330/110 to find your answer - 3
hours.
