What is the mechanical advantage of a hockey stick that is gripped at point D and hits the puck at point B?
2 answers:
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Answer: y = (1/4)x - 1
Step-by-step explanation:
Slope intercept form is . The
-intercept is -1 so we have
. To find
, look at the points
and
. The line goes up 1 and over 4, so the slope,
, equals
. Thus the full equation is
.
Answer:
p(x) = 0.85x
t(x) = 1.065x
(t o p)(x) = 0.9x
$2700
Step-by-step explanation:
If the marked price is $x, then the function p(x) that gives the price of the riding lawn mower after 15% discount will be
where x is the marked price.
Now, the function that gives the total cost with sales tax will be given by
where x is the discounted price.
Therefore, the composite function that gives the total cost of the riding lawn mower on sale is given by
(t o p)(x) = 1.065(0.85x) = 0.9x ............ (1)
where x is the marked price.
If the marked price x = $3000, then Mr. Rivera has to pay for the riding lawn mower, from equation (1),
(t o p)(3000) = 0.9 × 3000 = 2700 dollars. (Answer)