Complete the sentence so the result is an identity. Let x be any real number. + tan2x = sec2x
A. cos2x
B. sin2x
C. 1
D. -1
Answer: C
Mathematics
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Solve the proportion for x.
= 
A. x = 
B. x = 
C. x = 
D. x = 
Mathematics
Provide an appropriate response.If Rhonda can type a 1,000 word report in 4 hours, and while her friend Betty types on the same the report, they finish it in 3 hours, how long would it take Betty to type the report by herself?
Fill in the blank(s) with the appropriate word(s).
Mathematics
Write as a number.Six hundred eighty-six thousand, six hundred twenty-three.
A. 608,623 B. 686,623 C. 680,623 D. 600,086,623
Mathematics
Provide an appropriate response.If more than one unknown occurs in a word problem, the same variable may be used for expressions that represent each unknown.
A. True B. False
Mathematics