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3 years ago

Evaluate the expression when a = -5 and b = 4

Mathematics

1 answer:

Gwar [14]3 years ago

8 0

Answer:

could you please explain me the exact question

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Does anyone know the answer to this

jekas [21]

Answer:

uh no sorry ......... cant see pic at all

Step-by-step explanation:

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3 years ago

Solve for base. 450 crates is 0.90% of ___ crates

Tema [17]

Well... if 450 is 90% of the crates then 500 is 100%. 450 crates is 0.90% of 500 crates.

8 0

3 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

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3 years ago

Please help with math picture below

Viktor [21]

Answer:

28,099.31-x= 11,135.21 => x=28,099.31 - 11,135.21 = 16964.1

Step-by-step explanation:

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3 years ago

The function y = 50x describes the distance Gary has traveled in miles after x hours. Use the graph to estimate how many miles G

Nana76 [90]

Substitute 8 for x in the function.
y=50(8)=400
He would travel 400 miles

7 0

3 years ago

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