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3 years ago

1. Change into decimal number.

Mathematics

1 answer:

alexdok [17]3 years ago

7 0

Naguguluhan ako sa tanong mo po

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thirteen unit cubes are taken from the thousands cube.Write a fraction and a decimal to represent how man unit cubes are left.

podryga [215]

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1 year ago

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The diagram below shows the dimensions of Tessa’s garden.

Leona [35]

Answer:

Tessa's mistake was to have multiplied each dimension by two instead of multiplying by a square root of two.

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its areas is equal to the scale factor squared

Let

z -----> the scale factor

x ----> the area of the enlarged garden

y ----> the area of the original garden

$z^{2}=\frac{x}{y}$

we have that

If Tessa multiplies each dimension by 2, then the scale factor equals 2.

$z=2$

substitute

$2^{2}=\frac{x}{y}\\\\ 4=\frac{x}{y}\\\\x=4y$

The area of the enlarged garden will be equal 4 times the area of the original garden

If Tessa wanted to have twice as much surface, she must multiply each dimension by a square root of 2.

therefore

Tessa's mistake was to have multiplied each dimension by two instead of multiplying by a square root of two

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3 years ago

When a=2, b=-4, and c=1

Alexxx [7]

we know that the quatraitic equation

we know that the quadratic equation is aX square + bx + c we put this value A and B and C in equation X square + bx + c

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2 years ago

Find the flux of F=(x^5+y^5+z^5-2x-3y-4z)i+sin(2y)j+4zsin^2(y)k across the surface of the tetrahedron bounded by the coordinate

Tju [1.3M]

Use the divergence theorem.

$\mathbf F(x,y,z)=(x^5+y^5+z^5-2x-3y-4z)\,\mathbf i+\sin2y\,\mathbf j+4z\sin^2y\,\mathbf k$
$\implies(\nabla\cdot\mathbf F)(x,y,z)=\dfrac{\partial(x^5+y^5+z^5-2x-3y-4z)}{\partial x}+\dfrac{\partial(\sin2y)}{\partial y}+\dfrac{\partial(4z\sin^2y)}{\partial z}=5x^4-2+2\cos2y+4\sin^2y$

The flux of $\mathbf F$ across the tetrahedron's surface $S$ is then given by the integral of $\nabla\cdot\mathbf F$ over the interior of the tetrahedron $\mathbf R$ .

$\displaystyle\iint_S\mathbf F\cdot\mathrm dS=\iiint_T\nabla\cdot\mathbf F\,\mathrm dV$
$=\displaystyle\int_{x=0}^{x=1}\int_{y=0}^{y=1-x}\int_{z=0}^{z=1-x-y}(5x^4-2+2\cos2y+4\sin^2y)\,\mathrm dz\,\mathrm dy\,\mathrm dx$
$=\dfrac1{42}$

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3 years ago

Holly had $5,000 in her bank account. She withdrew $800 to buy a new bike. What is the percent decrease in the balance of her ac

hoa [83]

Answer:

The answer is B. the percent decrease is 16%

Step-by-step explanation:

Multiple 16% by 5000 and you'll get 800

4 0

2 years ago

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