Use the change of base rule to find the logarithm to four decimal places.log5.8 2.6

Write in logarithmic form.41/2 = 2

Solve the equation. If necessary, round to the nearest thousandth.2e4x – 3 = 8

Find the product. Write the answer in standard form.(-1 + 7i)(-1 – 7i)

Approximate the number using a calculator. Round your answer to three decimal places.5-1.9

Find the sum or difference. Write the answer in standard form.(-5 + 4i) – (5 + 7i) + (4 – 9i)

 = 5 – 2x

Solve each equation.x2 – 14x + 74 = 0

Evaluate or simplify the expression without using a calculator.log 

Determine whether the equation has a graph that is symmetric with respect to the y-axis, the x-axis, the origin, or none of these.x2 – y2 = 7