[Periodic energy usage] The 168-vector −→w gives the hourly electricity consumption of a manufacturing plant, starting on Sunday midnight to 1AM, over one week, in MWh (megawatt-hours). The consumption pattern is the same each day, i. e., it is 24-periodic, which means that wt+24 = wt for t = 1, · · · , 144. Let −→d be the 24-vector that gives the energy consumption over one day, starting at midnight. 1. Use vector notation to express −→w in terms of −→d.
2. Use vector notation to express −→d in terms of −→w.

9.55 degrees.

step-by-step explanation:

the given angle is

1 cycle is equal to 2π radians. so 4π will be equal to two cycles.

5.166667π-4π = 1.166667π

hence, this angle goes a little more than negative x axis.

1.166667π-π= 0.166667π

hence, the reference angle is 0.166667π radians.

1 radian = 57.2958 degrees

now, in degrees, this should be equals to 9.55 degrees.

2

step-by-2step explanation:

d. 8

step-by-step explanation:

the given radical expression is:

we can rewrite this as:

we express as square numbers to get;

the exponents will now cancel out to give.

the correct answer is d