Answer:86%of 950= 817
Step-by-step explanation:
The equation that can be used to determine the dimensions of the base of the doghouse is x² + 4x = 21
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What is the equation?</h3>
A quadratic equation is an equation that usually has a single variable and it is raised to the power of 2.
Area of a rectangle = length x width
x (4 + x) = 21
x² + 4x = 21
To learn more about quadratic equations , please check: brainly.com/question/27696091
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Answer:
16.28
Step-by-step explanation:
0.22/m=0.05/3.7
0.814/0.05=m
m=16.28
There must be minus sign with 4.9 .

The given equation is the equation of parabola , which is maximum at its vertex, and the formula of vertex is

So the height is maximum at t=2.55 seconds and to find the maximum height , we need to plug 2.55 for t , that is

So the maximum height is 112 m .