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2 years ago

Please help me and can you explain thank you

Mathematics

1 answer:

Rufina [12.5K]2 years ago

4 0

Answer:

(4,2), there is already a 4 in x value

Step-by-step explanation:

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Describe how to convert from vertex form to standard form. (10 points

Anton [14]

Answer:

"simplify" it

Step-by-step explanation:

To convert from vertex form to standard form for a quadratic, eliminate parentheses and collect terms. In short, "simplify" it.

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2 years ago

I need this one, answer please?

Stolb23 [73]

Answer:

Pair 1.

Step-by-step explanation:

On pair 1, shape A can go into shape B with a rotation.

Pair 2 would be a translation.

Pair 3 would be a reflection across the x-axis.

Pair 4 would be a reflection across the y-axis.

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3 years ago

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Find the perimeter of the sector of a circle of radius 14cm with an angle of 72 degree

Alika [10]

Answer:

the area sector is 123.2

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3 years ago

Use the divergence theorem to find the outward flux of the vector field F(x,y,z)=2x2i+5y2j+3z2k across the boundary of the recta

aksik [14]

Answer:

The answer is "120".

Step-by-step explanation:

Given values:

$F(x,y,z)=2x^2i+5y^2j+3z^2k \\$

differentiate the above value:

$div F =2 \frac{x^2i}{\partial x}+5 \frac{y^2j}{\partial y}+3 \frac{z^2k }{\partial z} \\$

$= 4x+10y+6z$

$\ flu \ of \ x = \int \int div F dx$

$= \int\limits^1_0 \int\limits^3_0 \int\limits^1_0 {(4x+10y+6z)} \, dx \, dy \, dz \\\\ = \int\limits^1_0 \int\limits^3_0 {(4xz+10yz+6z^2)}^{1}_{0} \, dx \, dy \\\\ = \int\limits^1_0 \int\limits^3_0 {(4x+10y+6)} \, dx \, dy \\\\ = \int\limits^1_0 {(4xy+10y^2+6y)}^3_{0} \, dx \\\\ = \int\limits^1_0 {(12x+90+18)}\, dx \\\\= {(12x^2+90x+18x)}^{1}_{0} \\\\= {(12+90+18)} \\\\=30+90\\\\= 120$

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3 years ago

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andreev551 [17]

Changchun. eh just h dhchre

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3 years ago