Please take another picture i think i know the answer but i can’t see choices
Answer:
54.90
Step-by-step explanation:
Answer:
1/10 per sec
Step-by-step explanation:
When he's walked x feet in the eastward direction, the angle Θ that the search light makes has tangent
tanΘ = x/18
Taking the derivative with respect to time
sec²Θ dΘ/dt = 1/18 dx/dt.
He's walking at a rate of 18 ft/sec, so dx/dt = 18.
After 3seconds,
Speed = distance/time
18ft/sec =distance/3secs
x = 18 ft/sec (3 sec)
= 54ft. At this moment
tanΘ = 54/18
= 3
sec²Θ = 1 + tan²Θ
1 + 3² = 1+9
= 10
So at this moment
10 dΘ/dt = (1/18ft) 18 ft/sec = 1
10dΘ/dt = 1
dΘ/dt = 1/10 per sec
I dont get how to work this one out give me a secod
The answer is: [C]: " 1200 m³ " .
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Explanation:
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Volume of a cylinder = (Base area) * (height) ;
= (100 m²) * (12 m) ;
= 1200 m³ ; which is: Answer choice: [C] .
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