Solve the problem.Anne and Nancy use a metal alloy that is 17.4% copper to make jewelry. How many ounces of an alloy that is 13% copper must be mixed with an alloy that is 24% copper to form 85 ounces of the desired alloy?
A. 51 oz
B. 34 oz
C. 39 oz
D. 53 oz
Answer: A
Mathematics
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Provide an appropriate response.Which of the following voting methods always satisfies Fairness Criterion 2?
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Find the exact value of the expression.tan 345°
A. 
B. 2 + 
C. -2 - 
D. 
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Write the complex number in the form a + bi.4(cos -135° + i sin -135°)
A. -2
- 2
i
B. - 
- 
i
C. - 
+ 
i
D. -2
+ 2
i
Mathematics
A formula is given along with the values of all but one of the variables in the formula. Find the value of the variable not given.I = prt; I = 8.4, p = 210, r = 0.01
A. 0.1764 B. 0.4 C. 17.64 D. 4
Mathematics