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Questions in Grade College

[Jawaban] Simplify a) $\left(3 d^2\right)\left(-9 d^2\right)(-5 d)$ b) $-c^4 \cdot 2 a^4$

[Jawaban] Identify the domain and range of each function. $y=3 \cdot 5^x$ The domain of this function is $\square$ The range of this function is $\square$

[Jawaban] Using the proper needle gauge is a factor in preventing contamination of blood cultures. True or False?

[Jawaban] A car has a mass of $1.00 \times 10^3$ kilograms, and it has an acceleration of 4.5 meters/second ${ }^2$. What is the net force on the car? A. $0.9 \times 10^3$ newtons B. $2.5 \times 10^3$ newtons C. $4.5 \times 10^3$ newtons D. $9.0 \times 10^3$ newtons E. $9.6 \times 10^3$ newtons

[Jawaban] Are the compositions of [tex]f(x)=1[/tex] and [tex]g(x)=2[/tex] commutative? Why or why not? A. They are commutative, because [tex]f(x)[/tex] and [tex]g(x)[/tex] are constant functions. B. They are commutative, because [tex]f(g(x))[/tex] and [tex]g(f(x))[/tex] are constant functions. C. They are not commutative, because [tex]f(x)[/tex] and [tex]g(x)[/tex] are not equal. D. They are not commutative, because [tex]f(g(x))[/tex] and [tex]g(f(x))[/tex] are not equal.

[Jawaban] Evaluate. $-\frac{1}{5}-\left(-\frac{1}{8}\right)$ Write your answer in simplest form.

[Jawaban] Which of the following is an example of collective behavior? A. Going shopping with a friend B. A group of people interested in hearing an author speak C. A class going on a field trip D. A soldier questioning orders

[Jawaban] Solve $-3 x-5<-20$ and $8-11 x>-80$

[Jawaban] Which of the following statements correctly describe the relationship between theories and experiments? Select all that apply. A. It is of no consequence when experimental results contradict a theory, since it is only a theory. B. If a theory is disproved by experiment, it must be modified or discarded. C. Experiments are regularly used to test the predictive ability of a theory. D. Since a theory is not an established fact, it is unrelated to experimentation.

[Jawaban] This table shows the population of owls in a park in different years. The quadratic regression equation that models these data is [tex]y=-1.34 x^2+10.75 x-11.3[/tex] | x Year | y Number of owls | |---|---| | 1 | 0 | | 2 | 2 | | 3 | 7 | | 4 | 14 | | 5 | 9 | | 6 | 4 | Using this model, the predicted number of owls in year 9 is about -23. Does this prediction make sense? Why or why not?