Change the sign. (Find the opposite, or additive inverse.) 4
A. 
B. 4
C. -4
D. 
Answer: C
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What can be concluded about using experimental probability methods to find the probability of an event? ?
A. ?No matter how many times you repeat trials, the probability will never be close to the theoretical probability. B. ?By increasing the number of trials, the experimental probability will approach the theoretical probability. C. ?By increasing the number of trials, the experimental probability will become more accurate than the theoretical probability. D. ?It is always possible to use experimental probability methods to estimate the theoretical probability. E. ?Experimental probability methods are preferable to theoretical probability methods in most cases.
Simplify the algebraic expression.-4(2x - 9) - 4x + 6
A. -12x - 30 B. 4x + 42 C. 12x + 42 D. -12x + 42
Place your graphing calculator in parametric and degree modes. Set the window for Tmin=0, Tmax=360, Tstep=1, Xmin= -1.8, Xmax=1.8, Xscl=1, Ymin= -1.2, Ymax=1.2, Yscl=1. Set the functions to X1T=cos T, Y1T=sin T. Graph the circle of radius 1 on the screen. Use the trace feature to move a short distance around the circle.For what angle T is sin T ? 0.174? (Assume 0° ? T ? 90°.)
A. 56.422° B. 0.174° C. 10° D. 80°
Solve using addition/subtraction:
