Find the equation of the parabola with the given focus and directrix.
A. x = - y2
B. y = - x2
C. y = -2x2
D. y = -8x2
Answer: B
Mathematics
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Solve the problem.Find sin (?), given that cos (?) = and sin (?) > 0.
A.
B. -
C.
D. -
Mathematics
Solve the system. +
-
=
-
+
/> = - -
+
-
=
A.
B. {(-2, 1, 7)}
C. {(-2, 1, -7)}
D.
Mathematics
Determine whether the pair are two equivalent expressions, two equivalent equations, or neither.5x - 2 + 2x + 9 and 7x + 7
A. expressions B. equations C. neither
Mathematics
Add.3.7 + 0.619 + 45
A. 49.319 B. 54.89 C. 8.819 D. 45.989
Mathematics