Solve the exponential equation. Use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution.2 x + 6 = 2
A. {-0.78}
B. {7.00}
C. {-5.00}
D. {1.78}
Answer: C
Mathematics
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Solve the quadratic inequality by sketching the graph of the corresponding quadratic function.-7x2 + 18x - 8 ? 0
A. Solution: (-?, 
] ? [2, ?)
B. Solution: 
C. Solution: (0, 2)
D. Solution: ?
Mathematics
Suppose that Pr(E) = 0.3, Pr(F) = 0.5, and Pr(E ? F) = 0.2.Calculate Pr(E' ? F').
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find 
. Write the answer in polar form with the argument between 0° and 360°z1 = 1 + i, z2 = 
+ i
A. (
- 2)(cos 15° + i sin 15°)
B. 
(cos 75° + i sin 75°)
C. 
(cos 15° + i sin 15°)
D. cos 75° + i sin 75°
Mathematics
Solve the problem.Find the area bounded by y(36 + 9x2) = 3, x = 0, y = 0, and x = 4.
A. 
tan-1
B. 3 sin-1
C. 
tan-1
D. sin-1
Mathematics