Add or subtract as indicated. Write the answer in simplest form.
+ 
A. 1
B. 
C. 
D. 
Answer: D
Mathematics
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Find the exact value of the expression using the provided information.Find tan(A + B) given that cos A = - 
, with A in quadrant II, and 
with B in 
A. - 
B. - 
C. - 
D. 
Mathematics
Use the prime factorization method to find the LCM of the variable expressions.9a, 27ab, 33b
A. 891ab B. 297a2b C. 891a2b D. 297ab
Mathematics
Perform the matrix operation.Let A =
and B = 
. Find 3A + B.
A. 
B. 
C. 
D. 
Mathematics
Use the given information to write an equation. Let x represent the number described in the exercise. Then solve the equation and find the number.If 309 is subtracted from a number, the result is 707.
A. x - 309 = 707; 1016 B. x + 707 = 309; -398 C. x + 309 = 707; 398 D. x - 309 = 707; -1016
Mathematics