Are you talking about 7-day period instead? Or is that really 70?
Anyway, the mean number of phone calls received over the period of time given would be 4 calls. I got to this answer through adding all of the calls and dividing them by the number of days.
4 is the opposite of negative 4
the first one is x^2 + 6x + 34
the second one is x^2 - 12x + 37
the third one is x^2 + 16
Answer:
Step-by-step explanation:
8)
around the tank = 12 * circumference
circumference = d
c = 30
c = 94.2477796
area around tank = 12 * 94.2477796 = 1130.973355
now top of tank
area of a circle =
* = 706.858347
add the two surface areas together for the total
706.858347 + 1130.973355 = 1837.832
total surface area = 1837.8
10) all I see in the picture is a cylinder, but it's saying "composite" shape so I know there is probably more, but the cylinder is
** 10 = 282.7
Answer:
A
Step-by-step explanation:
5in=84in
scale factor is 16.8 (84/5)
(21x12)/16.8=15
(28x12)/16.8= 20