A laboratory technician needs to make a 39-liter batch of a 40% acid solution. How can the laboratory technician combine a batch of an acid solution that is pure acid with another that is 10% to get the desired concentration?

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step-by-step explanation:

step-by-step explanation:

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answer would be 8.64 or s = 11π/4 inches

step-by-step explanation:

s = r θ  

where s = arc length  

r = radius = 3 inches  

θ = central angle in radians = ( π /180)*165  

s = 3(π/180)*165  

= 8.64 inches

answer: approximately 2.878

step-by-step explanation:

you multiply 11 and pi (3.14) then after you have 34.54. the final step is to divide by 12. the final answer is approximately 2.878