Provide an appropriate response.Choose the expression that is equivalent to the following: 2(7a) + 2(5b)
A. 4(12ab)
B. 2(12ab)
C. 2(7a + 5b)
D. 4(7a + 5b)
Answer: C
Mathematics
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Add or subtract, as indicated. Assume that all variables represent positive real numbers.9
+ 10
+ 4
A. 1408
B. 142
C. 9
D. -1408
Mathematics
Find the exact value of the expression.cot 240°
A. - 
B. 
C. 1
D. -2
Mathematics
Solve the compound inequality. Graph the solution set and write the solution in interval notation.x ? 3 and x ? 1
A. [1, 3]
B. (1, 3)
C. (-?, 1] ? [3, ?)
D. ?
Mathematics
Find the length of the unknown side in the right triangle. Round to two decimal places, if necessary.
A. c = 2.31 B. c = 8 C. c = 2 D. c = 6.93
Mathematics