Solve the problem.How many liters of 80% hydrochloric acid must be mixed with 40% hydrochloric acid to get 15 liters of 65% hydrochloric acid? Write your answer rounded to three decimals.
A. 4.688 L
B. 8 L
C. 9.375 L
D. 3.125 L
Answer: C
Mathematics
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Solve the equation.
x - 
x = 0.75
A. 1
B. 3
C. 
D. 2
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Evaluate without using a calculator by using ratios in a reference triangle.tan 300°
A. - 
B. 
C. 
D. - 
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Solve the problem.A company makes three chocolate candies: cherry, almond, and raisin. Matrix A gives the amount of ingredients in one batch. Matrix B gives the costs of ingredients from suppliers J and K. What is the cost of 100 batches of each candy using ingredients from supplier J?
A. $6000 B. $12,000 C. $15,200 D. $15,000
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Use a calculator to find the value of the trigonometric function to four decimal places.sec 
A. 1.0961 B. 1.1401 C. 1.2361 D. 1.0001
Mathematics