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3 years ago

9

When surveyed 5 out of 32 students said they ride their bikes to school. Predict how many students in a school of 800 ride their

bikes to school.
And please show your work!

1 answer:

yKpoI14uk [10]3 years ago

7 0

Answer:125 students

Step-by-step explanation:if 5 out of every 32 students bikes

5=32

X=800

800(5)=4000

4000/32=125

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Let II be the tangent plane to the graph of f(x, y) = 8 – 2x^2 – 3y^2 at the point (1, 2,-6). Let S, x² + y^2 + z = 4 be another

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Let $F(x,y,z)=f(x,y)-z$ . The tangent plane to $f(x,y)$ at (1, 2, -6) has equation

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Then the tangent plane has equation

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Let $g(x,y)=4-x^2-y^2$ , and $G(x,y,z)=g(x,y)-z$ . The tangent plane to $S$ at a point $(a,b,c)$ is

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$\nabla G(x,y,z)=(-2x,-2y,-1)\implies \nabla G(a,b,c)=(-2a,-2b,-1)$

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In order for this plane to be parallel to the previous plane, we need to have

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so the point we're looking for is (2, 6, -36).

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3 years ago