The athletic director of a college would like to reduce the number of injuries of her athletes. She believes that the ideal amount of sleep for college students is 8 hours per night. During the school year, all athletes tracked how much they slept each night, and their average time slept was rounded to the nearest hour (6, 7, 8, or 9 hours). The coaches of all teams reported whether the athlete was injured throughout the year. The Athletic director read that college students need 8 hours of sleep each night and believes that this group will have the least chance of injury. Her hypothesis is Athletes who sleep 8 hours each night will have the least chance of injury.

Using the information above, write a conclusion for this experiment. Is the hypothesis supported by the data? Explain why or why not using evidence to support your reasoning. Write your answer in complete sentences.

i think it because equal matrices have equal dimensions, only square matrices can be symmetric. for all indices and . every square diagonal matrix is symmetric, since all off-diagonal elements are zero. in linear algebra, a real symmetric matrix represents a self-adjoint operator over a real inner product space.

are their multiple choices ?

explanation:

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation: