Answer:
A) A 9% downhill grade means that the decrease in elevation of the road over the segment is 9% of the change in Horizontal distance over the same segment. In other words, for every 100 horizontal feet the road descends 9 feet and the road has a slope of 0.09 vertical feet per horizontal foot.
Step-by-step explanation:
A Certain westbound U.S highway truck route near a river has a downhill grade of 9%
A) A 9% downhill grade means that the decrease in elevation of the road over the segment is 9% of the change in Horizontal distance over the same segment. In other words, for every 100 horizontal feet the road descends 9 feet and the road has a slope of 0.09 vertical feet per horizontal foot.
In other to make things clear, lets assume
for X = 1 , y = 9% = 0.09
for y = 9 , x = 9 / 0.09 = 100
slope = y/x = 0.09 / 1 = 0.09
General equation of Ellipse centered at (h,k) is given as
![\frac{(x-h)^{2}}{a^{2}} + \frac{(y-k)^{2}}{b^{2}} =1\\](https://tex.z-dn.net/?f=%5Cfrac%7B%28x-h%29%5E%7B2%7D%7D%7Ba%5E%7B2%7D%7D%20%2B%20%5Cfrac%7B%28y-k%29%5E%7B2%7D%7D%7Bb%5E%7B2%7D%7D%20%3D1%5C%5C)
where a is the radius along x-axis
and b is radius along y-axis.
Given : The equation of elliptical path of Earth as
![\frac{(x+2.5)^{2}}{22350.25} + \frac{y^{2}}{22344} = 1\\](https://tex.z-dn.net/?f=%5Cfrac%7B%28x%2B2.5%29%5E%7B2%7D%7D%7B22350.25%7D%20%2B%20%5Cfrac%7By%5E%7B2%7D%7D%7B22344%7D%20%3D%201%5C%5C)
Comparing the equation with the general equation, we get
(h,k) as (-2.5,0)
a = ![\sqrt{22350.25} = 149.5](https://tex.z-dn.net/?f=%5Csqrt%7B22350.25%7D%20%3D%20149.5%20)
b = ![\sqrt{22344} = 149.48](https://tex.z-dn.net/?f=%5Csqrt%7B22344%7D%20%3D%20149.48%20)
We have the Sun located at the coordinate (0,0).
Hence, the distance between Sun and Earth in July = 149.5 + 2.5 =152
∴ Earth's distance from the Sun in July is 152 million kilometers.
I believe about two thirds
Answer:
$1200 interest
Step-by-step explanation:
$30,000 divided by 100 = 300 , 300 multipled by 4 = 1200 , thats how to find what 4% would be
Answer:
its 5.795
Step-by-step explanation: