Use identities to find the exact value of the expression.sin2 70° + cos2 70°
A. 0.49
B. 1
C. 0
D. 0.70
Answer: B
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Use l'Hopital's Rule to evaluate the limit.
A. 
B. 0
C. 
D. - 
The running speed s, in meters per second, for certain dinosaurs can be determined from the hip height h, in meters. The relationship is
.
A. Make a graph of speed versus hip height. Include hip heights from 0.5 to 5 meters.B. What happens to speed as hip height increases?C. Among these dinosaurs, does speed change more rapidly for smaller hip heights or for larger hip heights?
What will be an ideal response?
Write the number 
without using exponents.
Fill in the blank(s) with the appropriate word(s).
Write a formula for the general term (the nth term) of the arithmetic sequence. Then use the formula for an to find a20, the 20th term of the sequence.2, 8, 14, 20, 26, . . .
A. an = 6n - 4; a20 = 116 B. an = 4n - 2; a20 = 78 C. an = 4n - 6; a20 = 74 D. an = 6n - 2; a20 = 118