Mathematics, 02.08.2019 18:10 tydukes10
G7. if the statement is always true, circle true. if the statement is sometimes false, circle false. in each case, write a careful and clear justification or counterexample. for the following parts let ~v1, ~v2, ~v3 and ~u be defined as follows. ~v1 = [ β5 3 2 ] ~v2 = [1 0 4 ] ~v3 = [ 2 β2 0 ] ~u = [β1 3 1 ] (a) the vector ~u is in the set {~v1, ~v2, ~v3}. true false (b) the vector ~u is in the subspace spanned by {~v1, ~v2, ~v3}. true false 8. let w be the set defined below. find a set s of vectors that spans w or give an example to show that w is not a vector space. w = {[ a + 2b c + d d b β c ]: a, b, c, d are real numbers }
Answers: 3
Mathematics, 21.06.2019 19:30
The table below represents the displacement of a fish from its reef as a function of time: time (hours) x displacement from reef (feet) y 0 4 1 64 2 124 3 184 4 244 part a: what is the y-intercept of the function, and what does this tell you about the fish? (4 points) part b: calculate the average rate of change of the function represented by the table between x = 1 to x = 3 hours, and tell what the average rate represents. (4 points) part c: what would be the domain of the function if the fish continued to swim at this rate until it traveled 724 feet from the reef? (2 points)
Answers: 2
Mathematics, 21.06.2019 20:10
Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = -6. which function could heather be writing? fx) = x2 + 36x + 12 = x2 - 36x - 12 f(x) = -x + 12x + 36 f(x) = -x? - 12x - 36
Answers: 1
Mathematics, 21.06.2019 20:30
Create a question with this scenario you could ask that could be answered only by graphing or using logarithm. david estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x.
Answers: 1
G7. if the statement is always true, circle true. if the statement is sometimes false, circle false....
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