Establish the identity.sin(4u) = 2 sin(2u) cos(2u)
What will be an ideal response?
sin(4u) = sin [2(2u)] = 2 sin(2u) cos(2u).
Mathematics
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Solve the equation.-27 = 10x - 7
A. -30 B. -2 C. -26 D. 4
Mathematics
Determine the most appropriate metric unit to go in the blank. Choose from L, mL, kg, g, and mg.Helen and Juan went hiking. Between the two of them they brought 8 
of water.
A. mg B. mL C. kg D. g E. L
Mathematics
Solve the problem.The population of a city has varied considerably in recent years. The data in the table relates the pollution P to time t, in years, where t = 0 corresponds to 1990. Use a quadratic function fitted to the data to predict the population in 2000. 
A. 48,430.80 B. 58,964.00 C. 119,000.00 D. 81,202.00
Mathematics
Solve.log6 (6x - 9) = 2
A. 
B. 
C. 
D. {39}
Mathematics