Lenovo uses the zx-81 chip in some of its laptop computers. the prices for the chip during the last 4 months were as follows: month price per chip january $1.80 february $1.67 march $1.70 april $1.85 this exercise contains only parts a, b, and c. a) using a 2-month moving average, calculate the forecast for march and april (round your responses to two decimal places). month mar apr forecast $ 1.74 $ 1.69 b) using a 3-month moving average, calculate the forecast for april. the forecast for april is $ 1.72 (round your response to two decimal places). c) calculate the mean absolute deviation based on a 2-month average.

Muscles, a membership-only gym is hoping to open a new branch in a small city in pennsylvania that currently has no fitness centers. according to their research approximately 12,600 residents live within driving distance of the gym. muscles sends out surveys to a sample of 300 randomly selected residents in this area (all of who respond) and finds that 40 residents say they would visit a gym if one was located in their area. based on the past survey research, muscles estimates that approximately 30% of these respondents would actually join the gym if they opened one in the area. based on this information and the results of the sample survey, about how many residents should muscles expect to join its new branch? a) 134 b) 504 c) 1,680 d) 3,780

What is the value of x? enter your answer in the box. x = two intersecting tangents that form an angle of x degrees and an angle of 134 degrees.

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)