Mathematics, 31.03.2020 02:30 lilie080202
Ricardo throws a stone off a bridge into a river below. The stone's height (in meters above the water), x xx seconds after Ricardo threw it, is modeled by w ( x ) = β 5 ( x β 8 ) ( x + 4 ) w(x)=β5(xβ8)(x+4)w, left parenthesis, x, right parenthesis, equals, minus, 5, left parenthesis, x, minus, 8, right parenthesis, left parenthesis, x, plus, 4, right parenthesis How many seconds after being thrown will the stone reach its maximum height?
Answers: 2
Mathematics, 21.06.2019 16:20
Monica build a remote control toy airplane for science project to test the plane she launched it from the top of a building the plane travel a horizontal distance of 50 feet before landing on the ground a quadratic function which models the height of the plane in feet relative to the ground at a horizontal distance of x feet from the building is shown
Answers: 1
Mathematics, 21.06.2019 16:50
The rate of decay of a radioactive substance depends upon the amount present initially. the mass y (mg) of the radioactive substance cobalt-60 present in a sample at time t (years) is represented by the exponential equation y=50e β0.1315 t . answer the following questions in complete sentences. 1. how does the exponential equation above compare to the equation for simple interest that is compounded continuously? explain the similarities. 2. what is the initial amount of cobalt-60 in the sample? 2. how much cobalt-60 is left after 8.4 years? show your work. 3. what would be the y-intercept of the graph? what does it represent? 4. after how many years will the amount of cobalt-60 left be 6.25 mg? explain what happens to the cobalt-60 after 50 years? 5. discuss some βreal-worldβ examples and uses of cobalt-60
Answers: 1
Mathematics, 21.06.2019 18:30
Write the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7. t
Answers: 2
Mathematics, 21.06.2019 23:00
36x2 + 49y2 = 1,764 the foci are located at: (-β13, 0) and (β13,0) (0, -β13) and (0,β13) (-1, 0) and (1, 0)edit: the answer is (- the square root of 13, 0) and (the square root of 13, 0)
Answers: 1
Ricardo throws a stone off a bridge into a river below. The stone's height (in meters above the wate...
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