<h3>Answer: Choice C</h3>
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Explanation:
The x coordinate of the preimage point Q is x = 6.
The x coordinate of the image point Q' is x = 21.
The ratio of image over preimage is 21/6 = (3*7)/(3*2) = 7/2
You'll get this same value if you do the same steps with the y coordinates.
Therefore, the scale factor is 7/2 and the dilation rule is 
Note: 7/2 = 3.5
Answer:
30×5=150
so 150+10=160
thus his payment in the 30th installment is
rs.160
Answer:
The entire population will have a mean difference of μD = 0.
Step-by-step explanation:
This case is a null hypothesis for a test of repeated measures of two tails. The general null hypothesis is a hypothesis of no difference. We must find the differences of each pair and then find the mean of these differences.
Under a null hypothesis it is established that the population mean of the differences is 0.
Therefore, the correct option is the entire population will have a mean difference of μD = 0 (first option).
Second option is incorrect: It considers the sample instead of the population.
Third option is incorrect: It says that the mean difference is different from zero.
Forth option is incorrect: It says that the mean difference is different from zero.
Hope this helps!
