Answer:
A and B
27:9 divided by 3 on both sides,
9:3 (B)
27:9 divided by 9 on both sides,
3:1 (A)
Answer:
a. difference of means
Step-by-step explanation:
Given that :
Mean , x = 9.4
Standard deviation, 
= 2.5
Number, 
= 12
Mean, y = 6.5
standard deviation, 
= 2.4
Number, 
= 12
The null hypothesis is : 
The alternate hypothesis is : 
Level of significance, 
= 0.1
From the 
= 1.363
Since out test is right tailed.
Reject 
, if 
We use the test statics,
The value of 
with minimum 
that is 11 df is 1.363
We go and = 1.363
Decision making:
Since the value of 
and we reject the
The p-value : right tail 
= 0.00724
Therefore the value of 
, and so we reject the
Thus we are testing 'the difference of means" in this problem.
Answer:
when you dont feel like using a word problem u can do a expression instead
Step-by-step explanation:
Answer: (7x + 3)(7x -3)
Step-by-step explanation:
Answer:
A kite with a 100 foot-long string is caught in a tree. When the full length of the string is stretched in a straight line to the ground, it touches the ground a distance of 30 feet from the bottom of the tree. Find the measure of the angle between the kite string and the ground.
17°
27°
63°
73°
Step-by-step explanation:
