Evaluate the expression without using a calculator.(-243)1/5
A. -27
B. 243
C. 81
D. -3
Answer: D
Mathematics
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Use an identity to write the expression as a single trigonometric function or as a single number.2 sin 8° cos 8°
A. sin 16° B. sin 4° C. cos 16° D. cos24°
Mathematics
Provide an appropriate response.Consider the statement Sn: 4 + 9 + 14 + ... + (5n - 1) = 
.Write the statement Sk + 1.
A. 4 + 9 + 14 + ... + (5k + 4) = 
B. 4 + 9 + 14 + ... + 5k = 
C. 4 + 9 + 14 + ... + (5k + 4) = 
D. 4 + 9 + 14 + ... + (5k - 1) = 
Mathematics
Determine the least-square error when the line y = 2x + 2.5 is used to approximate the data points 
and (6, 15).
Fill in the blank(s) with the appropriate word(s).
Mathematics
Evaluate the algebraic expression 
when 
and 
.
A. 
B. 
C. 
D. 
E. 
Mathematics