Answer: 920.3 ft
Step-by-step explanation:
![\tan 7^{\circ}=\frac{113}{x} \\ \\ x(\tan 7^{\circ})=113 \\ \\ x=\frac{113}{\tan 7^{\circ}} \approx \boxed{920.3 \text{ ft}}](https://tex.z-dn.net/?f=%5Ctan%207%5E%7B%5Ccirc%7D%3D%5Cfrac%7B113%7D%7Bx%7D%20%5C%5C%20%5C%5C%20x%28%5Ctan%207%5E%7B%5Ccirc%7D%29%3D113%20%5C%5C%20%5C%5C%20x%3D%5Cfrac%7B113%7D%7B%5Ctan%207%5E%7B%5Ccirc%7D%7D%20%5Capprox%20%5Cboxed%7B920.3%20%5Ctext%7B%20ft%7D%7D)
We know that
At sea level, the height is 0 and
the pressure is 98 kilopascals
At 1000 ft, the height is 1000 and
the pressure <span>decreases about 11.41%
</span>i(100%-11.41%)/100----> (0.8859)
therefore
1) at 1000 ft--------> the pressure is 98*(0.8859)----------> 86.82 kilopascals
2) at 2000 ft--------> the pressure is 86.82*(0.8859)-------> 76.91 kilopascals
3) at 3000 ft--------> the pressure is 76.91*(0.8859)-------> 68.14 kilopascals
4) at 4000 ft---------> the pressure is 68.14*(0.8859)-------> 60.36 kilopascals
the answer is
<span>The pressure at an altitude of 4000 m is about </span>60.36 kilopascals
Answer:
6:10pm
Step-by-step explanation:
At 6:00 the hands are 180° apart.
The hour hand moves 1/12 of circle per hour = 30° per hour = 0.5° per minute.
The minute hand moves 1/60 of the circle per minute = 6° per minute
Angle between the hands decreases by 6-0.5 = 5.5° per minute.
180 - 5.5t = 125
t = 125/5.5 = 10 minutes
The hands are 125° apart at t minutes after 6:00, or 6:10.
Answer:
Find the derivative of the function given by f(x)=(√(x^2+1))/x
Step-by-step explanation:
Answer:
huh? -1 is a decimal number maybe write it as -1.0 ?