Which of the following circles lie completely in the fourth quadrant
1 answer:
Answer:
C.(x-5)²+(x+5)=9
D (x-9)²+(y+9)²=16
Step-by-step explanation:
Use a graph tool to visualize the circle.See attached
You can also see that in the options
C. circle has center (5,-5) and radius 3 which will form in 4th quadrant
D. Circle has center (9,-9) and radius 4 which will still form in 4th quadrant
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Answer:
Null Hypothesis, :
= 1,100 square feet
Alternate Hypothesis, :
< 1,100 square feet
Step-by-step explanation:
We are given that the mean area of several thousand apartments in a new development is advertised to be 1,100 square feet.
A consumer advocate has received numerous complaints that the apartments are smaller than advertised.
<u><em>Let </em></u><u><em> = mean area of several apartments.</em></u>
So, Null Hypothesis, :
= 1,100 square feet
Alternate Hypothesis, :
< 1,100 square feet
Here, <u>null hypothesis states that</u> the mean area of apartments are same as advertised.
On the other hand, <u>alternate hypothesis states that</u> the mean area of apartments are smaller than advertised.
So, this would be the appropriate null and the alternative hypothesis to test this claim.