Use a calculator to give the real number value.tan-1(0.5774)
A. 0.47142856
B. 1.04761903
C. 0.52363607
D. 0.55873015
Answer: C
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Determine whether 149,857 is divisible by 4. ?
A. yes B. no
Simplify the expression. Assume that all variables are positive when they appear.
+ 1 - 
A. 4 - 2
B. 4 - 
C. 4
D. 
+ 1 - 
Solve the problem.Suppose that a hair dryer operates on a voltage that can be represented by the relation 
and that it draws a current represented by the relation 
where t is time measured in seconds. The power consumed by the appliance is P = VI. Graph the power in 
by 
and use an identity to write the expression for the power in the
form 
where a, k, and d are constants.
A. P = 640 cos(240?t) + 640
[0, 0.04, 0.01] by [-200, 2000, 200]
B. P = 1280 cos(240?t) + 1280
[0, 0.04, 0.01] by [-200, 2000, 200]
C. P = 640 cos(120?t) + 640
[0, 0.04, 0.01] by [-200, 2000, 200]
D. P = -640 cos(240?t) + 640
[0, 0.04, 0.01] by [-200, 2000, 200]
Complete the following:(a) Use the Leading Coefficient Test to determine the graph's end behavior.(b) Find the x-intercepts. State whether the graph crosses the x-axis or touches the x-axis and turns around at each intercept.(c) Find the y-intercept.(d) Graph the function.f(x) = -2(x - 3)(x + 2)3
What will be an ideal response?