Rewrite the given expression using an appropriate variable. Use the first letter of the given word as the variable.2 ÷ (Length)
A. 2 ? L
B. 2 ÷ L
C. 2 - L
D. L ÷ 2
Answer: B
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Write and solve an equation to answer the question. Round percent to the nearest thousandth, if necessary.The appliance store where the Scott family shops offers a 
for paying cash. The Scott family received a discount of $27. What was their total bill before the discount? Round to the nearest dollar.
A. $2 B. $200 C. $338 D. $3
Solve the equation on the interval 0 ? ? < 2?.2 cos2 ? - 3 cos ? + 1 = 0
A. 0, 
, 
B. 0, 
, 
C. 0, 
, 
D. 
, 
, 
Consider a person who invests in AAA-rated bonds, A-rated bonds, and B-rated bonds. The average yields are 6.5% on AAA bonds, 7% on A bonds, and 9% on B bonds. The person invests twice as much in B bonds as in A bonds. Let x, y and z represent the amounts invested in AAA, A, and B bonds, respectively.
Total Investment
Annual Return
$663,000
47,000
?
Use the inverse of the coefficient matrix of this system to find the amount invested in each type of bond.
?
A. $142,000 in AAA-rated bonds $451,000 in A-rated bonds$71,000 in B-rated bonds
B. $450,000 in AAA-rated bonds$71,000 in A-rated bonds$142,000 in B-rated bonds
C. $143,000 in AAA-rated bonds $71,000 in A-rated bonds$450,000 in B-rated bonds
D. $72,000 in AAA-rated bonds$450,000 in A-rated bonds$142,000 in B-rated bonds
E. $450,000 in AAA-rated bonds$142,000 in A-rated bonds $70,000 in B-rated bonds
Use the appropriate identity to find the indicated function value. Rationalize the denominator, if applicable. If the given value is a decimal, round your answer to three decimal places.csc ?, given that sin ? = 
A. 
B. 
C. 
D. 