Solve.ln e9x = 63
A. 17
B. 14
C. 63
D. 7
Answer: D
Mathematics
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Find the area of the rectangle or square.Length = 9 cm, width = 4 cm
A. 36 cm2 B. 13 cm2 C. 26 cm2 D. 72 cm2
Mathematics
Divide. Express your answer in standard form.
A. 
+ 
i
B. 
- 
i
C. - 
- 
i
D. - 
+ 
i
Mathematics
Find the partial derivative.Let z = f(x, y) = 5(x + 4y - 4)2. Find 
.
A. 40x + 160y - 160 B. 20x + 80y C. 40x + 160y + 160 D. 20x + 80y - 80
Mathematics
Find the direction the parabola opens, the coordinates of the vertex, the equation of the axis of symmetry and draw the graph.x = -(y + 1)2 - 6
A. 
opens left; vertex (1, 6);
axis of symmetry y = 6
B. 
opens left; vertex (-6, 1);
axis of symmetry y = 1
C. 
opens left; vertex (-6, -1);
axis of symmetry y = -1
D. 
opens left; vertex (-1, -6);
axis of symmetry y = -6
Mathematics