A random sample of 26 restaurants was selected from all restaurants listed in Greenwich Village and their Zagat ratings were rec
orded. Zagat ratings are averages of responses from many diners who rated the restaurants on a scale of 0 to 30 on food, décor, and service. Diners also estimated the total cost of dinner, one drink, and a tip. Suppose that Zagat is interested in whether they can predict the cost of a meal from the Zagat service rating. In that study, the response (dependent) variable is:
1 answer:
Complete Question
The complete question s shown on the first uploaded image
Answer:
Correct option is B
Step-by-step explanation:
Generally the respond dependent variable can be defined as a variable whose values are dependent on the changes in other variable
Now in this question the respond (dependent) variable is the cost of meal , this because from the question the interest of Zagat is to predict the cost of a meal from the Zagat service rating
So in this case the independent variable is Zagat service rating
While the responds dependent variable is cost of meal
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Answer:
The equation represents the equation of the parabola with focus (-3, 3) and directrix y = 7.
Step-by-step explanation:
To find the equation of the parabola with focus (-3, 3) and directrix y = 7. We start by assuming a general point on the parabola (x, y).
Using the distance formula , we find that the distance between (x, y) is
and the distance between (x, y) and the directrix y = 7 is
.
On the parabola, these distances are equal so, we solve for y:
Adding: When adding fractions, you want to make sure that the denominator is the same for both fractions. If they are already the same, just add both the numerators to get the answer. For example,
If the denominator is different in both fractions, you have to find the least common denominator, or LCD. The LCD is the smallest number that both denominators can multiply into. For example, say you need to find
Multiply both the numerator and the denominator of (1/3) by 2 to get (2/6). This way, the denominators are the same and you can find the answer.
In the case that one denominator does not go into the other, find the smallest number they both multiply into. For example,
Here, the smallest number that both 4 and 3 multiply into is 12. Multiply both fractions by the correct amount to make both denominators 12. It would then become
Subtraction: follow the same rules as addition, except subtract the numerators instead of adding them.
Multiplication: multiply both numerators and both denominators.
Division: Flip one of the fractions and multiply.
Becomes
Hope this explains it all. Let me know if you have any questions :)
If the denominator is different in both fractions, you have to find the least common denominator, or LCD. The LCD is the smallest number that both denominators can multiply into. For example, say you need to find
Multiply both the numerator and the denominator of (1/3) by 2 to get (2/6). This way, the denominators are the same and you can find the answer.
In the case that one denominator does not go into the other, find the smallest number they both multiply into. For example,
Here, the smallest number that both 4 and 3 multiply into is 12. Multiply both fractions by the correct amount to make both denominators 12. It would then become
Subtraction: follow the same rules as addition, except subtract the numerators instead of adding them.
Multiplication: multiply both numerators and both denominators.
Division: Flip one of the fractions and multiply.
Becomes
Hope this explains it all. Let me know if you have any questions :)