Graph the function by first finding the relative extrema.f(x) = 2x2 + 4x + 1
A. 
B. 
C. 
D. 
Answer: B
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Solve the problem.Two sound waves, producing the pressures src="https://sciemce.com/media/4/ppg__jhjhj0506192304__f1q105g6.jpg" alt="" style="vertical-align: -4.0px;" />Round k to the nearest ten-thousandth, if necessary.
A. a = 10; k = 929.9437
B. a = 3.2; k = 929.9437
C. a = 10; k = 0.6435
D. a = 3.2; k = 0.9273
and 
combine on a person's ear drum to produce the pressure 
Graph P in 
by 
and use the graph to estimate values for a and k so that
Simplify. Assume that no radicands were formed by raising negative quantities to even powers.
- 4
+ 6
A. 2
B. 21
C. 2
D. 21
Perform the desired operation. Write the answer in the form a + bi.(5 + 6i)(5 - 6i)
A. 61 B. 25 - 36i C. -11 D. 25 - 36i2
Provide an appropriate response.Write the equation y = -6x - 9 in standard form.
A. 6x + y = -9 B. -6x + y = 9 C. 6x + y = 9 D. 6x - y = -9