Establish the identity.-tan 2 x + sec 2 x = sec 2 x cos 2 x
What will be an ideal response?
-tan 2 x + sec 2 x = - 
+ 
= 
(-sin 2 x + 1) = sec 2 x cos 2 x.
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Evaluate the algebraic expression for the given value(s) of the variable(s).-3x2 + 5x - 1 ; x = -2
A. 1 B. 21 C. -23 D. -3
Convert the number in the sentence to standard notation.The total sales of Acme Manufacturing Company for the last four years was $31.80 billion.
A. $31,800,000,000,000 B. $31,800,000 C. $318,000,000 D. $31,800,000,000
Simplify the expression by combining any like terms.12x - x - 4x - x
A. 8x B. 6x C. -x2 + 8x D. x2 + 8x
Use the following notations: r = radius of a circle, v = linear velocity, ? = angular velocity. Find the missing quantity. Round to the nearest tenth if necessary.r = 13 feet, ? = 2.2 rad/sec, v = ?
A. 15.2 ft/sec B. 5.9 ft/sec C. 28.6 ft/sec D. 10.8 ft/sec