Answer:
the span of the bridge is 73.7 feet
Step-by-step explanation:
The equation of an ellipse with a vertical major axis(i.e major axis parallel to y axis) is given by:
a>b
where (h,k) are the coordinates of the center of the ellipse, a is the length of the major axis and b is the length of the minor axis
For this problem, the center of the ellipse (h,k) = (0,0)
Therefore:
The top of the arch is 20 feet above the ground level (the major axis), therefore a=20
length of the major axis = 2a= 2*20 = 40
The coordinates of the ellipse (x,y) = (28,13)
b² ≅ 1358
b≅36.85
Length of minor axis (2b) = 73.7 feet.
the span of the bridge is 73.7 feet
Perimeter =the length of border of a shape .....if its an equilateral triangle and one side is 32 then. Perimeter is three times the side.ie. 3x32=96cm
Answer:
You are correct.
Step-by-step explanation:
The x-intercept could be written the way you have or also it can be written as a point (-1, 0).
The y-intercept could also be written as a point (0, -2) But they are commonly written the way you have also.
So, the slope is -2. But just to be clear. That slope of -2 has nothing to do with the y-intercept of -2.
If you mark all the points on the line, to get from one point to the next point, you go down 2 and over (positive direction) 1. The down 2 in math is -2 and the over 1 is just 1. The slope is that ratio of -2/1.
Slope tells us if the line is going up or down, steep or flat, even horizontal. It was coincidence only that the y-intercept and slope were the same number.
The statement that is true about mass are:
- One kilogram is 1,000 times greater than one gram.
- Kilograms are greater than grams
<h3>What is mass?</h3>
The mass is the physical measuring quantity that measures the weight or body inertia of a substance.
It also pinpoints the strength of an object's gravitational abstraction to other bodies.
The unit of mass can be expressed in;
A kilogram usually contains 1000 grams. Thus, we can conclude that:
- One kilogram is 1,000 times greater than one gram.
- Kilograms are greater than grams.
Learn more about mass here:
brainly.com/question/25121535
