Solve.The relationship between Fahrenheit temperature and Celsius temperature can be approximated by an equation of the form
where x is the temperature in degrees Fahrenheit and y is the temperature in degrees Celsius. Find the equation if two ordered pairs that satisfy it are
and 
A. y = x - 80
B. y = x +
C. y = x - 10
D. y = x -
Answer: D
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Which of the following is not part of the process of constructing an Angle?
?
?
A. ?Draw a Ray beginning at a point C. B. ?Use a straightedge to draw an arc at angle A. C. ?Use a compass to draw an arc at angle A. D. ?Measure lengths of both sides containing angle A. E. ?None of the above.
Find the sum Sn of the first n terms of the geometric sequence.4, ,
,
, . . . ; n = 7
A. 0.444444 B. 4.404044 C. 4.044444 D. 4.444444
Solve.A camera that sells regularly for $310 is discounted by $99 in a sale. What is the sale price?
A. $409 B. $211 C. $221 D. $99
Decide whether the expression is or is not an identity.sin (A + B) + sin (A - B) = 2 sin A cos B
A. Identity B. Not an identity