Solve.In total a medical research facility spent $18,000,000 to develope a drug. 10% of this cost was for staff and 15% was for equipment. How much was spent to cover both the staff and the equipment?
A. $13,500,000
B. $72,000,000
C. $4,500,000
D. $270,000
Answer: C
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Solve.A wastewater treatment operator uses the formula A = 8.34FC to determine the amount A of chlorine in pounds to add to a basin. The flow F through the basin is in millions of gallons per day, and the desired concentration C of chlorine is in parts per million. If 2200 pounds of chlorine is added to a basin with a flow rate of 10.4 million gallons per day, what would be the resulting concentration?
A. 25.36 ppm B. 19.08 ppm C. 211.54 ppm D. 117.39 ppm
The table below shows Joe's golf scores from Saturday.
The locator for the 20th percentile is
A. 7.2. B. 3. C. 7. D. 8. E. none of these
Solve the triangle, if possible. If the triangle represents the ambiguous case, solve for all possible triangles. Approximate values to the nearest tenth when appropriate.
A. ?1 = 118°, ?1 = 36°, c1 = 71 ?2 = 10°, ?2 = 144°, c2 = 14 B. ? = 36°, ? = 118°, c = 71 C. ?1 = 36°, ?1 = 118°, c1 = 71 ?2 = 144°, ?2 = 10°, c2 = 14 D. No solution
Multiply. Write the result in the form a + bi.(2 + 3i)2
A. 13 + 12i B. -5 + 12i C. 4 + 9i D. 4 - 9i