A fireman learned a 36 foot ladder against a building.If he placed the ladder 7 feet from the base of the building,what angle is
1 answer:
Answer:
The angle between the ladder and ground is 78.78°
Explanation:
It is given that the length of the ladder is 36 foot and the distance between the base and the ladder is 7 feet.
Here we can see that the hypotenuse is 36 foot and the base is 7 feet. To find the angle between the ladder and the ground we take the cos inverse of 7/36.
Let the angle between the ladder and the ground is ‘x’.
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The angle between the ladder and ground is 78.78°
Explanation:
It is given that the length of the ladder is 36 foot and the distance between the base and the ladder is 7 feet.
Here we can see that the hypotenuse is 36 foot and the base is 7 feet. To find the angle between the ladder and the ground we take the cos inverse of 7/36.
Let the angle between the ladder and the ground is ‘x’.
Please check the attached image, also report the answer above me for spamming and trying to receive free points as this has been an issue lately.
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Answer:
The zeros of the given polynomial function are
2,2,
Step-by-step explanation:
Given polynomial is
To find the zeros equate the given polynomial to zero
ie., P(x)=0
By using synthetic division we can solve the polynomial:
2_| 1 -4 -1 20 -20
0 2 -4 -10 20
_____________________
1 -2 -5 10 |_0
Therefore x-2=0
x=2 is a zero of P(x)
Now we can write the cubic equation as below:
Again using synthetic division
2_| 1 -2 -5 10
0 2 0 -10
______________
1 0 -5 |_0
Therefore x-2=0
x=2 is also a zero of P(x).
Now we have
is a zero of P(x)
Therefore the zeros are 2,2,
Answer: 6,987,000 pounds fo CO₂ per kWh.
Step-by-step explanation: <u>Quilowatt</u>-<u>hour</u> <u>(kWh)</u> is a unit of energy that measures the amount of energy expended in 1 hour.
The AC uses 850 Watts, which in kW is 850,000 kW
If you leave the AC on for 6 hours, it will consume
850,000(6) = 5,100,000 kWh
Eletricity produces 1.37 pounds of CO₂ per kWh, then in 5,100,000 kWh:
1.37 .(5,100,000kWh) = 6,987,000 pounds
If you open a window for 6 hours, you would keep 6,987,000 pounds of CO₂ for entering the atmosphere.