Answer:
91
Step-by-step explanation:
60/7=8.57142857
780/8.57142857=91
Answer:
Step-by-step explanation: The parallel sides of a trapezium are called the bases and the distance between them is the height. Therefore if 6cm and 15cm are the bases and 9cm is the height, then the area is A= ½(b1+b2)×h, where b1 is 6cm and b2 is 15cm and h is 9cm. Therefore the Area= ½(6+15)×9=94,5cm.
11 by 35
how?
well, i have no idea just found it on internet
Answer:
Option D is correct.
Step-by-step explanation:
We have been given the rate is raised by $45
Since, if we increased mean by 45 there will be no change in number of observations and in sum because there is symmetry in the sum of observations.
So, mean will be increased by $45
And standard deviation will remain same because it means how far the term is from the mean.
Therefore, option D is correct.