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Dmitry [639]
3 years ago
13

One grain of this sand approximately weighs 7 x 10^-5g.

Mathematics
2 answers:
Mkey [24]3 years ago
8 0

6.3 x 106 ÷ 7 x 10-5 = 0.9 x 1011 or 9 x 1010

oee [108]3 years ago
4 0

Answer: i belive it is 90 billion grains of sand


Step-by-step explanation:


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3 years ago
) find a vector parallel to the line of intersection of the planes 5x − y − 6z = 0 and x + y + z = 1.
snow_tiger [21]
The cross product of the normal vectors of two planes result in a vector parallel to the line of intersection of the two planes.

Corresponding normal vectors of the planes are
<5,-1,-6> and <1,1,1>

We calculate the cross product as a determinant of (i,j,k) and the normal products

    i   j   k
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   1  1  1

=(-1*1-(-6)*1)i -(5*1-(-6)1)j+(5*1-(-1*1))k
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Check orthogonality with normal vectors using scalar products
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3 years ago
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jek_recluse [69]
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maw [93]

Answer:

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Step-by-step explanation:

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6 0
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Read 2 more answers
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Answer:

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Step-by-step explanation:

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For 12: 0, 12, 24, 36, 48, "60", 72, 84, 96, 108, 120...

From this, it is obvious that 60 is the lowest common multiple of these two numbers. Therefore, we know that Stefan can make dog collars without having leftover supplies by using 6 10-pack buckles and 5 12-pack straps.

From this, we know that Stefan does not need to buy 120 of either the buckles or the straps.

5 0
3 years ago
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