Answer:6cm
Step-by-step explanation:
Area of trapezoid=1/2*(a+b)*h
43.5=1/2*(8.5+6)*h
h=6cm
Answer:
63 mm
Step-by-step explanation:
The formula to find the volume of a cylinder is V=h
You square the radius which would be 9
Then multiply that by 7 which is the height and get 63
Since it is left in terms of pi you do not need to multiply by pi so you add the pi symbol to the end.
Then get 63 mm
Since an arithmetic sequence is a sequence of numbers and the difference of any two successive members of the sequence is a constant
So this question is arithmetic because it keep minus by 7
from 19 - 7 = 12
12 - 7 = 5
5 - 7 = -2
so common difference is -7
or you can check with arithmetic formular as
= + (n−1)d
I will just put in the 4th term which is -2 and n will equal to 4
and is the 1st term which is 19
-2 = 19 + (4−1)d
-2 - 19 = 3d
d =
d = -7
Teachers and principles probably still want to keep school a little old fashioned while still having little technology by the next year or 2 we'll might not have to carry heavy backpacks anymore I wish you the best of luck.