Solve the problem.Anne and Nancy use a metal alloy that is 16% copper to make jewelry. How many ounces of an alloy that is 10% copper must be mixed with an alloy that is 20% copper to form 55 ounces of the desired alloy?
A. 38 ounces
B. 24 ounces
C. 22 ounces
D. 33 ounces
Answer: C
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Show that the points form the vertices of the indicated polygon. ? Isosceles triangle: (7, -6), (9, 8), (-5, 6) ?
A. Distances between the points:
B. Distances between the points:
C. Distances between the points:
D. Distances between the points:
E. Distances between the points:
Factor completely. If the polynomial is prime, state so.x3 + 20x2 + 100x
A. x(x - 10)2 B. prime C. x(x + 10)2 D. x(x + 10)(x - 10)
Estimate the derivative of the function at the point
.
?
Select the answer rounded to the nearest whole number.
?
A. -9 B. -10 C. -8 D. -7 E. -13
Solve the equation by the method of your choice. Simplify irrational solutions, if possible.(x + 4)(x + 1) = 28
A. {-4, -1} B. {1, 4} C. {-3, 8} D. {-8, 3}