?Find the determinant of the matrix 
.
?
A. ?
B. ?
C. ?
D. ?
E. ?
Answer: C
Mathematics
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Decide whether or not the given equation is an identity.
= 
A. Yes B. No
Mathematics
Solve the equation.-3a + 5 + 4a = 15 - 29
A. 19 B. -19 C. 49 D. -49
Mathematics
Find the circumference and area of a circle having the given diameter or radius. Use 3.14 for ?. Round your results to the nearest tenth.r = 2.4 mi
A. 15.1 mi; 15.1 mi2 B. 15.1 mi; 18.1 mi2 C. 7.5 mi; 30.1 mi2 D. 7.5 mi; 72.3 mi2
Mathematics
Find the slope of the line containing the two given points.(-4, 3) and (7, -4)
A. - 
B. 
C. - 
D. - 
Mathematics