Give the exact value.cot 120°
A. 
B. - 
C. -1
D. - 
Answer: D
Mathematics
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Find the derivative of y with respect to the appropriate variable.y = (?2 + 5?) tanh-1 (? + 4)
A. (2? + 5) - 
B. - 
C. (2? + 5) tanh-1 (? + 4) - 
D. (2? + 5) tanh-1 (? + 4) - 
Mathematics
Identify the property illustrated by the statement.9 + (-9) = 0
A. Addition property B. Additive identity C. Multiplicative identity D. Inverse property of addition
Mathematics
Find the sum and simplify the answer.
A. 1
B. 
C. 
D. 1
Mathematics
Identify the place value of the underlined digit.3.8
A. Ones place B. Tenths place C. Hundreds place D. Hundredths place
Mathematics