Answer:
1300
Step-by-step explanation:
the right answer is 1280.5
but becuase you estimate it doenst have to be exact, so 100x13 is the easiest to calculate in your head, so the estimate is 1300
Answer:
f(4) = -15
Step-by-step explanation:
Since we have an average rate of change, we can deduce that a line, with a gradient of -6 joins the points on the function, f, when the parameter is 1 and when it is 4, i.e. the line passes through the point (1, 3) and has a gradient of -6;
From this, we know that for every value of x we increase the, value y will decrease by 6;
So if we increase 1 by 3, to get to 4, the y value must decrease by 18 (3×6);
Written mathematically, it would look like:
f(4) = 3 + (4 - 1)(-6)
= 3 - 18
= -15
(4, -15)
Adults pay = $33.60
Children pay = $16.80 (it's half price but if they take a round trip it's double the price. Therefore it's $16.80) then multiply both by two and add them together.
2 ($33.60+$16.80) = $100.80
I think it would be 78.54
Answer: x * (x + 1003)
Step-by-step explanation:
x^2 x 3x + 1000x
x^2 + 1003x
x * (x + 1003)
