Add or subtract as indicated.-2.4 + (-7.7)
A. 10.1
B. 5.3
C. -5.3
D. -10.1
Answer: D
Mathematics
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Given matrix A, find the indicated minor.Find M42.A = 
A. 17 B. -34 C. 0 D. 34
Mathematics
Find the area of the specified region.Inside the circle r = -8 cos ? and outside the circle r = 4
A. 
?
B. 8?
C. 
(2? + 3
)
D. 
(4? - 3
)
Mathematics
Prove the identity.csc2 
= 
What will be an ideal response?
Mathematics
Find the x-intercept(s) of the graph of the equation. Graph the equation.y = x2 + 4x - 7
A. x-intercepts: -4 and 3
B. x-intercepts: none
C. x-intercepts: -2 ± 
D. x-intercept: 4
Mathematics