Which statement is true about the graphed function?
f(x) < 0 over the intervals (-...
Mathematics, 30.10.2019 14:31 angiejtc0908
Which statement is true about the graphed function?
f(x) < 0 over the intervals (-β, -0.7) and (0.76, 2.5).
f(x) > 0 over the intervals (-β, -0.7) and (0.76, 2.5).
f(x) < 0 over the intervals (-0.7, 0.76) and (2.5, β).
f(x) > 0 over the intervals (-0.7, 0.76) and (0.76, β).
Answers: 2
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
Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90Β° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that Ξ΄ and Ξ΄ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?
Answers: 2
Mathematics, 21.06.2019 19:00
Lena reflected this figure across the x-axis. she writes the vertices of the image as a'(β2, 8), b'(β5, 6), c'(β8, 8), d'(β4, 2).
Answers: 2
Mathematics, 21.06.2019 19:30
Acourt reporter is transcribing an accident report from germany. the report states that the driver was traveling 80 kilometers per hour. how many miles per hour was the driver traveling?
Answers: 2
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