Answer:
its C
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
First, simplify sqrt(18/30) into sqrt(3/5). This equals (sqrt(3))/(sqrt(5)) or (sqrt(15))/5. Now, multiply it by 8 to get 
or D.
The critical values are fixed values which can be
obtained from the standard t crit
tables. We can find the critical value tc when the degrees of freedom
and confidence level are given. The degrees of freedom is simply:
Degrees of Freedom = Number of samples – 1
Degrees of Freedom = 19 – 1
Degrees of Freedom = 18
From the t critical tables, the tc corresponding to Degrees
of Freedom equal to 18 and Confidence level equal to 95% is as follows:
tc = 2.101
Therefore this means that any t value beyond 2.101, we already
reject the null hypothesis.
Step-by-step explanation:
5x +2 = 182 -4x
5x+4x = 182-2
9x = 180
x = 180/9
x = 20
4y +2 = 5x +2
4y = 5x
4y = 5(20)
4y = 100
y = 100/4
y = 25
Answer:
Yes, when you divide 249 by 3 you get a rational number meaning that 249 is divisible by 3.
Step-by-step explanation:
