Answer:
C. 1/4 cup for every cup of water
Step-by-step explanation:
9514 1404 393
Answer:
240 m²
Step-by-step explanation:
The lateral surface area is given by the formula ...
LA = πrs . . . . . cone with radius r and slant height s
The base area is given by the formula ...
BA = πr²
The total surface area is the sum of these:
SA = BA +LA = πr² +πrs = πr(r+s)
The radius is half the diameter, so is 9m/2 = 4.5 m. Then the surface area is ...
SA = π(4.5 m)(4.5 m +12.5 m) = 76.5π m² ≈ 240 m²
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❖ The gray whale will need to come up 12 times during the 6 hr period.
Convert 6 hrs to mins:
1 hr = 60 mins
60 x 6 = 360 mins
Divide by 30 to see how many times the whale will need to come up:
360/30 = 12
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X=3.5 add 10 and divide by 8
