Zoe went on a shopping trip to Fairfax. She purchased a barbecue grill originally priced at $600 but discounted 50%. If sales ta
1 answer:
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Answer:
Step-by-step explanation:
3) Area of a circle is
Where r = 6
Thus,
4) False
Area of a circle is measured by the formula below:
5) The formula for calculating the area of a rectangle is given thus:
Where, l = 10ft; w = 7ft
Answer:
Chris will take 0.75 seconds to return to his starting height of 10 feet.
Step-by-step explanation:
Let the height of Chris be represented by , where
is the height in feet and
, the time in seconds. First, we equalize the formula to a height of 10 feet and simplify the resulting expression, that is:
Then, we simplify the expression by algebraic means:
Roots of the polynomial are, respectively:
First root represents the initial height of Chris, whereas the second one represents the instant when Christ returns to the same height above the surface of the water. Hence, Chris will take 0.75 seconds to return to his starting height of 10 feet.