The answer is 578....................
Answer:
ISO 1600
Step-by-step explanation:
"Three stops" means the picture is overexposed by a factor of 2^3 = 8. Each f-stop increase halves the exposure, so increasing from 5.6 through 8 to 11 means you have cut the exposure by a factor of 4 with the f-stop change.
Each halving of the shutter-open time also cuts the exposure in half, so reducing the shutter speed from 1/30 to 1/250 cuts the exposure by a factor of about 8.
The adjustments of shutter speed and f-stop have decreased the exposure by a factor of 4·8 = 32, which is a factor of 4 more than the factor of 8 you needed. (The shutter speed change by itself would have been sufficient.)
So, to compensate for the much smaller exposure, you need faster film, by a factor of 4. The film needs to go from ISO 400 to ISO 1600.
Answer:
117.8
Step-by-step explanation:
Surface area = πr²+πrl (whee r = radius and l = slant height)
= π×3²+π×3×9.5
= 75π/2
= 117.8
10. he owes more than
11. she spent $55, she is $55 in debt
12. yes. -12 and 12 have the same absolute value, they ate both the same distance from 0
13. yes
14. not the opposite but the inverse
Answer:
A. Area = 8
B. Area = 15.5
Explanation:
Formula for Area of Triangles: b•h / 2
A.
height = 2.
base = 8.
2•8 = 16/2 = 8
Area = 8
B.
height = 3
base = 7
3•7 = 21/2 = 15.5
Area = 15.5
