Establish the identity.sin 4u = 2 sin 2u cos 2u

What will be an ideal response?


sin 4u = sin (2u + 2u) = 2 sin 2u cos 2u.

Mathematics

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Make a line graph of the data.The following table shows the average tuition for one semester at City X College over various years. Use time on the horizontal scale for your line graph.

What will be an ideal response?

Mathematics

Use the quadratic function to determine if the function has a maximum or minimum value and then find this maximum or minimum value.f(x) = 4x2 + 8x

A. maximum at 
B. maximum at  
C. minimum; (ii) 
D. minimum at 

Mathematics

Determine the order of the matrix.

A. 4 B. 2 × 2 C. 2 D. 1

Mathematics

In April of 1986, the world's worst nuclear power disaster occurred at Chernobyl in the former USSR. An explosion released about 924 kilograms of radioactive cesium-137 (137 Cs) into the atmosphere. If the half-life of 137 Cs is 30.17 years, how much will remain in the atmosphere in 148 years? Round your answer to four decimal places. ?

A. 0.0000 kg B. 802.2442 kg C. 144.6880 kg D. 188.3586 kg E. 30.8289 kg

Mathematics