- Help me solve a - ((tan 15)*a)/2? I know it will be (√3/2)a, but I need to see the steps.?

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Driving at a constant speed of 70 mph, will it be possible to make this trip in 3 hours? Explain how you know.? What is the thing that goes faster if you are faster? Write the reaction between HBr and Ca(OH)2: What is the molarity of HBr of 35.00mL requires 20.00mL of 0.2500M Ca(OH)2? How much water would I need to add to 500mL of a 2.4 M potassium chloride solution to make a 1.0 M solution? Consider the equation z^5=(1+i). Express your answer as z=re^(iθ) where r=2^(1/10) what is θ?