Answer:
The altitude is changing at a speed of 200 √3 km/hr
Step-by-step explanation:
Here, we want to know how far the altitude of the plane is changing
we are told that the airplane makes an angle of 60 degrees with the ground
So therefore , the rate of change of its altitude will be ;
sin 60 = x/ 400
x = 400 sin 60
x = 400 * √3/2
x = 200 √3 km/hr
The equations y = x² - 2x + 1 and 2x - y = 2 intersect at the points (1, 0) and (3, 4)
<h3>What is an equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
Given that the quadratic function intersecting a linear function at points (1, 0) and (3, 4)
This means that this points lie on both functions.
y = x² - 2x + 1 and 2x - y = 2
For point (1, 0):
y = 1² - 2(1) + 1 = 0; 2(1) - 0 = 2
For point (3, 4):
y = 3² - 2(3) + 1 = 4; 2(3) - 4 = 2
The equations y = x² - 2x + 1 and 2x - y = 2 intersect at the points (1, 0) and (3, 4)
Find out more on equation at: brainly.com/question/2972832
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Answer:
12 pi
Step-by-step explanation:
volume of sphere = 4/3 pi r2
4/3 pi 3 x 3
12 pi unit square
They all add 3 then subtract it by 4
