Answer:
Step-by-step explanation:
1.5
Answer:
n=-1
Step-by-step explanation:
-8n+4(1+5n)=-6n-14
-8n+4+20n=-6n-14
12n+4=-6n-14
12n+6n=-14-4
18n=-18
Answer:
The correct set of hypotheses is:
Step-by-step explanation:
This should be researched with a hypothesis test on the proportion of tourists visiting Rock City.
The claim that want to be tested is if the proportion has increased from the past proportion (π=0.75).
Then, the alternative hypothesis will state that the proportion is significantly higher than 0.75.
On the contrary, the alternative hypothesis will state that the proportion is not significantly different than 0.75.
This can be written as:
Answer:
28 is less than or equal to x
Step-by-step explanation:
20 is less than or equal to x - 8
20 + 8 is less than or equal to x - 8 + 8
You add to cancel out the 8 to isolate x.
28 is less than or equal to x
Answer:
See Explanation
Step-by-step explanation:
The question is incomplete, as there are lots of missing details in the question. To do this, I will make assumptions
See attachment for question illustration where
the height of the second floor
the distance where the base of the ladder is placed
the length of the ladder
So, we are to solve for x.
Using Pythagoras theorem, we have:
Make the subject
Take square roots of both sides
The above is the expression to calculate the base length of the ladder.
Assume
So, we have: