Find the values of the variables for which the statement is true, if possible.
= 
A. x = 9; y = 6; z = 7
B. x = 6; y = 7; z = 9
C. x = -9; y = -6; z = -7
D. x = -9; y = 7; z = 6
Answer: A
Mathematics
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Solve. Give your answer as a mixed number if appropriate. =
A. 138
B. 21
C. 28
D. 2
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Convert. Round to the nearest tenth unless otherwise indicated.The recipe calls for the oven to be heated to 375 ° F. What is this temperature in degrees Celsius?
A. 216° C B. 176° C C. 226° C D. 191° C
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Find the distance between the pair of points. Give an exact answer, and where appropriate, an approximation to three decimal places.(-3.4, 2.7) and (3.1, -12.9)
A. , 14.181
B. 16.9
C. 33.8
D. , 22.999
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Use the Half-angle Formulas to find the exact value of the trigonometric function. cos
A.
B.
C.
D.
Mathematics