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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Given:
Normal price of a tv = $200
Coupon = 25% off
To find:
The money saved by Katherine.
Solution:
Katherine buys a tv with a normal price of $200 and she has a 25% off coupon. It means, the money saved by Katherine is 25% of normal price of tv, i.e., $200.
Therefore, the money saved by Katherine is $50.
Answer:
Option D) $275
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = $235
Standard Deviation, σ = $20
We are given that the distribution of amount of money spent by students is a bell shaped distribution that is a normal distribution.
Formula:
We have to find the value of x such that the probability is 0.975
Calculation the value from standard normal z table, we have,
Approximately 97.5% of the students spent below $275 on textbook.