Use the variation of parameters formula to find the general solution of the system x' (t) = ax(t) +f(t), where a and f(t) are given:
a = [ 8 -4 ] f(t) = [ t^-2 / 2 ]
[ 4 -2 ] [ t^-2 ]
fyi: a and f(t) are both matrices

Agroup of randomly selected apple valley high school students were asked to pick their favorite gym class. the table below shows the results of the survey. there are 528 students at apple valley high school. gym class number of students racquet sports 1 team sports 9 track and field 17 bowling 13 based on the data, what is the most reasonable estimate for the number of students at apple valley high school whose favorite gym class is bowling? choose 1 answer a. 9 b. 13 c. 119 d. 172

Neoli is a nurse who works each day from 8: 00 am to 4: 00 pm at the blood collection centre. she takes 45 minutes for her lunch break. on average, it takes neoli 15 minutes to collect each sample and record the patient's details. on average, how many patients can neoli see each day?

What is the solution to the division problem below x3+x2-11x+4/x+4