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Ksenya-84 [330]

2 years ago

10

Romeo is using a common algorithm to find the product of 8,125 × 9. Drag the correct numbers to the problem to show the partial

products and to complete the multiplication for Romeo.

1 answer:

Sedaia [141]2 years ago

4 0

Answer:

the answer is

Step-by-step explanation:

....

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Linear System, substitutional method<br><br> 5x+4y=32 <br> 9x-y=33<br><br> helppp

Pachacha [2.7K]

5x + 4y = 32 ⇒ 45x + 36y = 288
9x - 1y = 33 ⇒ <u>45x - 5y = 165</u>
      <u>41y</u> = <u>123</u>
   41 41
      y = 3
      5x + 4(3) = 32
      5x + 12 = 32
   <u> - 12 - 12</u>
      <u>5x</u> = <u>20</u>
       5     5
      x = 4
      (x, y) = (4, 3)

6 0

2 years ago

What is the value of X<br> 8+4x+2+56-42x

Stels [109]

Answer:

i cannot answer the value of X unless there is an equal sign but the equation simplified is 66-38x

Step-by-step explanation:

3 0

2 years ago

Is a + b rational or irrational

Crank

Answer and fdaStep-by-step explanation:::

The answer depends on the numbers that are inputted for a and b.

If the numbers that are inputted for both a and b are rational, then a + b would be rational.

If the numbers that are inputted for both a and b are irrational, then a + b would be irrational.

If one of the variables is rational and the other is irrational, then a + b would be irrational.

#teamtrees #PAW (Plant And Water)

6 0

2 years ago

Hellp pls. This is not a test, so pls do not report.

SashulF [63]

B is the correct answer

7 0

2 years ago

Calculate the flux of the vector field F⃗ (x,y,z)=(exy+9z+4)i⃗ +(exy+4z+9)j⃗ +(9z+exy)k⃗ through the square of side length 3 wit

ikadub [295]

The square (call it $S$ ) has one vertex at the origin (0, 0, 0) and one edge on the y-axis, which tells us another vertex is (0, 3, 0). The normal vector to the plane is $\vec n=\vec\imath-\vec k$ , which is enough information to figure out the equation of the plane containing $S$ :

$(x\,\vec\imath+y\,\vec\jmath+z\,\vec k)\cdot(\vec\imath-\vec k)=0\implies x-z=0\implies z=x$

We can parameterize this surface by

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

for $0\le x\le\frac3{\sqrt2}$ and $0\le y\le3$ . Then the flux of $\vec F$ , assumed to be

$\vec F(x,y,z)=(e^{xy}+9z+4)\,\vec\imath+(e^{xy}+4z+9)\,\vec\jmath+(9ze^{xy})\,\vec k$ ,

is

$\displaystyle\iint_S\vec F(x,y,z)\cdot\mathrm d\vec S=\iint_S\vec F(\vec s(x,y))\cdot\vec n\,\mathrm dx\,\mathrm dy$

$=\displaystyle\int_0^3\int_0^{3/\sqrt2}\left((4+e^{xy}+9x)\,\vec\imath+(9+e^{xy}+4x)\,\vec\jmath+(e^{xy}+9x)\,\vec k\right)\cdot(\vec\imath-\vec k)\,\mathrm dx\,\mathrm dy$

$=\displaystyle\int_0^3\int_0^{3/\sqrt2}4\,\mathrm dx\,\mathrm dy=\boxed{18\sqrt2}$

3 0

3 years ago