Solve, using the substitution method, and check.
A. 
B. 
C. 
D. 
E. 
Answer: B
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Multiply or divide (as specified) the numerator and denominator by the given factor to obtain an equivalent fraction.
(multiply by x - 1)
A. 
B. 
C. 
D. 
Find all values of ? with the given trigonometric function value.sin ? = - 
A. 60° + n ? 360°; 300° + n ? 360°, n any integer B. 210° + n ? 360°; 330° + n ? 360°, n any integer C. 150° + n ? 360°; 210° + n ? 360°, n any integer D. 60° + n ? 360°; 120° + n ? 360°, n any integer
Solve the problem.A bridge is built in the shape of a semielliptical arch. It has a span of 106 feet. The height of the arch 29 feet from the center is to be 6 feet. Find the height of the arch at its center.
A. 29.19 ft B. 10.97 ft C. 7.17 ft D. 6.24 ft
Use a system of linear equations to solve the problem.Zacharias has a total of 60 coins, all of which are either dimes or nickels. The total value of the coins is $4.75. Find the number of each type of coin.
A. 35 nickels; 25 dimes B. 25 nickels; 35 dimes C. 30 nickels; 30 dimes D. 27 nickels; 33 dimes