Solve the problem.A bridge is built in the shape of a semielliptical arch. It has a span of 104 feet. The height of the arch 28 feet from the center is to be 8 feet. Find the height of the arch at its center.
A. 8.31 feet
B. 9.49 feet
C. 14.86 feet
D. 28.34 feet
Answer: B
Mathematics
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Find the nonreal complex solutions of the equation. Write your answer in standard form.(r + 6)2 = -14
A. {6 ± 
}
B. {-6 ± 
}
C. {-6 ± i
}
D. {6 ± i
}
Mathematics
Simplify by factoring out the given factor.8k-3 + k-7; k-7
A. k-7(8k-4 + 1) B. k-7(8k5 + 1) C. k-7(8k4 + 1) D. 8 k-7(k4 + 1)
Mathematics
Find the inverse of the matrix.
A. 
B. 
C. 
D. No inverse
Mathematics
Round the given modified quota ? 3.57 ? by comparing it first with the arithmetic mean, and then with the geometric mean of the lower and upper quotas. ?
A. 4; 4 B. 3; 3 C. 0; 1 D. 4; 3 E. 3; 4
Mathematics