Answer:

• subtract eqn(b) from eqn(a);

• find x :

Answer:
compute its exterior angle as 360/18, which is 20 degrees
Step-by-step explanation:
Solution :
The null and alternative hypothesis is given by


Assume that the level of significance, α = 0.05
The t-test statistics is, t = 1.484
Degree of freedom :
df = n - 1
= 14 - 1
= 13
The P-value is given by
P-value = 2P (T>|t|)
= 2P(T>|1.484|)
= 2P(T>1.484)
= 2(=T.DIST.RT(1.484,13))
= 0.05
Answer:
b c d
Step-by-step explanation: