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3 years ago

Someone pls help will give brainliest

Mathematics

1 answer:

liberstina [14]3 years ago

5 0

3. 60 divide by 360 times pi times (8)2=33.51 squared inch

4. 120divide by 360 times pi times (5 over 2)2=40.9 squared inch

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If you paint 1/6 of a fence each day, how many day would it take you to paint 3/4 of the fence?

ololo11 [35]

(3/4) / (1/6)

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2 years ago

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Find the area A if b = 14 cm and h = 6 cm

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2 years ago

Find an equation of the tangent plane to the given surface at the specified point. z = ln(x − 8y), (9, 1, 0)

Archy [21]

Answer:

x - 8y - z = 1

Step-by-step explanation:

Data provided according to the question is as follows

f(x,y) = z = ln(x - 8y)

Now the equation for the tangent plane to the surface

For z = f (x,y) at the point P $(x_0,y_0,z_0)$ is

$z - z_0 = f_x(x_0,y_0)(x-x_0) + f_y(x_0,y_0)(y-y_0)\\$

Now the partial derivatives of f are

$f_x(x,y) = \frac{1}{x-8y} \\\\f_y(x,y) = \frac{8}{x-8y} \\\\P(x_0,y_0,z_0) = (9,1,0)\\\\f_z(9,1,0) = (\frac{1}{x-8y})_^{(9,1,0)}$

$\\\\=\frac{1}{9-8}$

= 1

Now

$f_y(9,1,0)=(\frac{8}{x-8y})_{(9,1,0)}\\\\ = -\frac{8}{9 - 8}$

= -8

So, the tangent equation is

$z - 0 = 1\times (x - 9) -8\times (y - 1)$

Now after solving this, the following equation arise

z = x - 9 - 8y + 8

z = x - 8y - 1

Therefore

x - 8y - z = 1

4 0

2 years ago

PLZ HURRY IT'S URGENT!

Furkat [3]

Answer:

D. 12 units

Step-by-step explanation:

The distance between two points is found by

d = sqrt( (x2-x1)^2 + (y2-y1)^2)

sqrt( (4 -4)^2 + (-5-7)^2)

sqrt((0^2 + (-12)^2)

sqrt(0+144)

sqrt(144)

4 0

2 years ago