4 years ago

Prove or disprove: if p and q are prime numbers then pq - 2 is also a prime number.

Mathematics

1 answer:

jeyben [28]4 years ago

7 0

Counterexample:

$p=2\\ q=3\\\\ pq-2=2\cdot3-2=4$

4 is not a prime number. So, it's false.

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IRINA_888 [86]

Answer:

$3x-4y=-40$

Step-by-step explanation:

The standard form of a linear equation is $ax+by=c$ .

The given line has equation:

$y-4=\frac{3}{4}(x+8)$

This is the point-slope form of the given line.

To find the standard form, we clear the fraction

$4y-16=3(x+8)$

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We group the variables on the LHS and the constants on the RHS.

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Multiply through by -1

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Step-by-step explanation:

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Answer:

Step-by-step explanation:

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