Since it says the sum of any number not one in specific then the value will be x, plus the sum of 7,
Answer:
C. He should have added t instead of subtracting t.
Step-by-step explanation:
Using the disk method, the volume of the solid is
Substitute 
and 
.
Answer:
Step-by-step explanation:
Bro this is hard and i think this is on a test so... i dont know lol thanks for the 25 points
Answer:
No
Mean diameter = 44, which is in the 40 - 44 cm group
Step-by-step explanation:
Given the data:
Diameter (cm) - mid point(X) - frequency(F) - - FX
35-39 - - - - 37 - - - - 8 - - 296
40-44 - - - 42 - - - 10 - - - 420
45-49 - - - 47 - - - 13 - - - 611
50-54 - - - 52 - - - 3 - - - 156
55-59 - - - 57 - - - 1 - - - 57
Mean of grouped data:
Sum of (F × X) / sum of F
1540 / 35 = 44
