Answer:
X=+30 that's all I know, Sorry I couldn't help much :(
Answer:
20 students
Step-by-step explanation:
Sample is basically a selected subset of a population. A researcher is investigating the effect of sugary cereal on the aggression of second graders during morning play period. For this purpose, a researcher selected 20 student and feed them a sugary cereal and then observe their behaviors. Here, 20 student are selected from the all second grader students. So, the sample in the conducted study are 20 students.
For a fraction, if the denominator turns to 0, the fraction becomes undefined, and therefore, that's a restriction on a rational.
now, what values of "x" makes the denominator 0? let's check,
x+2 = 0
x = -2
so, if "x" ever becomes -2, then you'd get

so, the domain, or values "x" can take on safely, are any real numbers EXCEPT -2.
Answer:
A. cos(t)= 1/sec(t)
Second answer is C. 12/13
Step-by-step explanation:
Just had the question.