Determine if the parabola whose equation is given opens upward or downward.y = 2x2 - 2x - 6
A. downward
B. upward
Answer: B
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Solve.Two machines are turned on at 8:00 A.M. If one can produce 58 items each hour and the other can produce 75 items each hour, at what time will they produce a total of 798 items?
A. 1:00 P.M. B. 3:00 P.M. C. 2:00 P.M. D. 3:30 P.M.
Provide an appropriate response.To write a fraction as a decimal:
A. divide the quotient by the numerator B. divide the numerator by the quotient C. multiply the reciprocal by the fraction D. divide the numerator by the denominator
Solve the problem using a system of equations.A company sells nuts in bulk quantities. When bought in bulk, peanuts sell for $1.25 per pound, almonds for $2.35 per pound, and cashews for $3.30 per pound. Suppose a specialty shop wants a mixture of 320 pounds that will cost $2.70 per pound. Find the number of pounds of each type of nut if the sum of the number of pounds of almonds and cashews is three times the number of pounds of peanuts. Round your answers to the nearest pound.
A. Peanuts: 210 lb., almonds: 80 lb., cashews: 30 lb. B. Peanuts: 80 lb., almonds: 30 lb., cashews: 210 lb. C. Peanuts: 30 lb., almonds: 210 lb., cashews: 80 lb. D. Peanuts: 90 lb., almonds: 30 lb., cashews: 200 lb.
An account now contains $8,800 and has been accumulating interest at a 16% annual rate, compounded continuously, for 7 years. Find the initial deposit and round to the nearest cent. ?
A. $8,769.44 B. $2,871.26 C. $2,857.92 D. $8,574.58 E. $8,580.05