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3 years ago

Pls answer correctly or i report you i really need to know this

Mathematics

1 answer:

ra1l [238]3 years ago

8 0

Answer:

final answer is d

Step-by-step explanation:

explanation multiply exponent on the outside by the inside.

btw you dont have to give me brainliest i dont really care for it i just like helping hope it's right good luck.!!;)

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Find the value of x. The angle measures of a right triangle are <br>x°<br>8x°

lianna [129]

Answer:

x equals 10

Step-by-step explanation:

All triangles have 180 degrees

The bottom left angle is a right angle and is therefore 90°

That leaves us with x+8x=90°

9x=90°

x=10°

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3 years ago

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Alex can shovel the driveway in 45 minutes if he works alone. Alex and Luisa can shovel the driveway in 20 minutes if they work

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Step-by-step explanation:

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3 years ago

find an equation of the tangent plane to the given parametric surface at the specified point. x = u v, y = 2u2, z = u − v; (2, 2

Alexxandr [17]

The surface is parameterized by

$\vec s(u,v) = x(u, v) \, \vec\imath + y(u, v) \, \vec\jmath + z(u, v)) \, \vec k$

and the normal to the surface is given by the cross product of the partial derivatives of $\vec s$ :

$\vec n = \dfrac{\partial \vec s}{\partial u} \times \dfrac{\partial \vec s}{\partial v}$

It looks like you're given

$\begin{cases}x(u, v) = u + v\\y(u, v) = 2u^2\\z(u, v) = u - v\end{cases}$

Then the normal vector is

$\vec n = \left(\vec\imath + 4u \, \vec\jmath + \vec k\right) \times \left(\vec \imath - \vec k\right) = -4u\,\vec\imath + 2 \,\vec\jmath - 4u\,\vec k$

Now, the point (2, 2, 0) corresponds to u and v such that

$\begin{cases}u + v = 2\\2u^2 = 2\\u - v = 0\end{cases}$

and solving gives $u = v = 1$ , so the normal vector at the point we care about is

$\vec n = -4\,\vec\imath+2\,\vec\jmath-4\,\vec k$

Then the equation of the tangent plane is

$\left(-4\,\vec\imath + 2\,\vec\jmath - 4\,\vec k\right) \cdot \left((x-2)\,\vec\imath + (y-2)\,\vec\jmath + (z-0)\,\vec k\right) = 0$

$-4(x-2) + 2(y-2) - 4z = 0$

$\boxed{2x - y + 2z = 2}$

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2 years ago

a particular plant root grows 2.5 inches per month how many centimeters is the plant root growing per month

Lady bird [3.3K]

2.5 inches is 6.35 centimeters because 1 inch is 2.54 cm

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3 years ago

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÷)))))))))))))))))))

Anna35 [415]

Answer: x ≤ 16 y≥ 16

Step-by-step explanation:

-150x ≥ -2400 divide both sides by -150 and the sign will flip because you x≤16 diving by a negative number

-336 ≥ -21y

y ≥ 16

6 0

4 years ago

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