Select the more reasonable temperature for the item.Making hot tea90°C90°F
A. 90°C
B. 90°F
Answer: A
Mathematics
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Solve the equation. Express radicals in simplest form.-2k2 - 1 = -19
A. ±6 B. -9.5 C. 3 D. ±3
Mathematics
Solve the problem.Walt made an extra $10,000 last year from a part-time job. He invested part of the money at 2% and the rest at 3.25%. He made a total of $237.50 in interest. How much was invested at 3.25%?
A. $7000 B. $5000 C. $3000 D. $8000
Mathematics
Graph the ellipse.
+ 
= 1
A. 
B. 
C. 
D. 
Mathematics
Solve the rational inequality and graph the solution set on a real number line. Express the solution set in interval notation. 
? 0
A. (-?, 1] ? [3, ?)
B. (-?, -3] ? (-2, -1) ? [1, ?)
C. (-?, 1) ? (3, ?)
D. (-?, -3) ? (-1, ?)
Mathematics