Find the mass of the wire that lies along the curve r and has density ?.r(t) = 
i + 3tj, 0 ? t ? 1; ? = 4t
A. 
units
B. 
units
C. 2 units
D. 
units
Answer: D
Mathematics
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Perform the operation and give the answer as a fraction in lowest terms.
A. - 
B. 
C. - 
D. - 
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Express the transform of the given expression in terms of s and ?
.y" - 2y', f 
= 0, f' 
= 0
A. s2?
- 2s?
B. s3?
- 2s?
C. s2?
D. s2?
- 2?
Mathematics
Solve the problem. Round rates to the nearest tenth of a percent and dollar amounts to the nearest cent.A local dealer sells baseballs for $25 each. If $14.20 is the cost, what is the percent of markup on the selling price?
A. 69.8% B. 43.2% C. 30.2% D. 32.9%
Mathematics
Based on the ordered pairs seen in the pair of tables, make a conjecture as to whether the function defined in Y1 is even, odd, or neither even nor odd.
A. Odd B. Neither even nor odd C. Even
Mathematics