(5, 90)
You can solve both equations for y and then set equal to each other. Then use the quadratic equation to solve for x
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
Answer:
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Step-by-step explanation:
B. Bob nbhfhv Fahd cjcnv Vivian. No. V v vvv
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H Ghanga
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Answer:
Kayla put 52,908 km on the truck.
Step-by-step explanation:
Subtract 27,544 km from 80,452 km to answer this question:
80,452 km
- 27,544 km
-------------------
52,908 km
Kayla put 52,908 km on the truck.
