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2 years ago

How do I write eighty decreased by six times nine

Mathematics

2 answers:

fomenos2 years ago

4 0

80-6x9

Fyi decreased means subtracted

babunello [35]2 years ago

3 0

Well you would do 80-6*9

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Use the divergence theorem to find the outward flux of the vector field F(xyz)= 4x^2 i + 4y^2 j + 3z^2 k across the boundary of

Pavel [41]

$\vec F(x,y,z)=4x^2\,\vec\imath+4y^2\,\vec\jmath+3z^2\,\vec k\implies\nabla\cdot\vec F=8x+8y+6z$

Let $S$ be the surface of the rectangular prism bounded by the planes $x=0$ , $x=a$ , $y=0$ , $y=b$ , $z=0$ , and $z=c$ . By the divergence theorem, the integral of $\vec F$ over $S$ is given by the integral of $\nabla\cdot\vec F$ over the interior of $S$ (call it $R$ ):

$\displaystyle\iint_S\vec F\cdot\mathrm d\vec S=\iiint_R(\nabla\cdot\vec F)\,\mathrm dV$

$=\displaystyle\int_0^c\int_0^b\int_0^a(8x+8y+6z)\,\mathrm dx\,\mathrm dy\,\mathrm dz=\boxed{abc(4a+4b+3c)}$

5 0

2 years ago

The given cube has a mass of 173 grams, what is it’s density

Tanzania [10]

Answer:

I think the density is 4cm.

Hope that helps you.

Step-by-step explanation:

5 0

1 year ago

PLS HELPP WHAT IS THE ANSWER???

Elena-2011 [213]

Answer:

-220

Step-by-step explanation:

6 0

1 year ago

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Pick 3 cards from a standard 52-card deck. Find the P(of at least 1 red card).

kkurt [141]

Answer:P(BBR) = 1/2 × 25/51 × 26/50 = 13/102 if cards are not replaced.

P(RBB) = 1/2 × 26/51 × 25/50 (simplified 1/2) = 13/102

P(BRB) = 1/2 × 26/51 ×25/50 (simplified 1/2) = 13/102

Step-by-step explanation: P(B) at first step is 26 cards out of a possible 52 therefore 26/52 (or simplified 1/2). We then have 25 black cards left out of a possible 51 therefore 25/51. The final card then has to be red to meet the criteria, we have 26 red cards still out of a possible 50 therefore 26/50.

This would be an example of binomial probability as at each step there are only 2 options R or B.

8 0

2 years ago

How can I solve this question??

ollegr [7]

Answer:

It is a perfect square trinomial.

You split it into two binomials.

(E + 8)(e+8)

Step-by-step explanation:

5 0

1 year ago