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2 years ago

Are 4 and 9 relatively prime?

Mathematics

2 answers:

Helen [10]2 years ago

8 0

Answer:

Relatively prime numbers ( coprimes ) are numbers that share no common divisor (except 1). Numbers 4 and 9 share the number 1 as the only common divisor and so are coprimes .

Step-by-step explanation:

SSSSS [86.1K]2 years ago

6 0

Answer:

nbvStep-by-step explanation:

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Which are the solutions of x2 = –7x – 8?

vovangra [49]

Answer:

The solutions are:

$x_1=\frac{-7+\sqrt{17}}{2}$ $x_2=\frac{-7-\sqrt{17}}{2}$

Step-by-step explanation:

We have the following quadratic equation

$x^2 = -7x - 8$

We can rewrite the equation as follows

$x^2+7x + 8=0$

Now we use the quadratic formula to solve the equation

For an equation of the form $ax ^ 2 + bx + c = 0$ the quadratic formula is:

$x=\frac{-b\±\sqrt{b^2-4ac}}{2a}$

In this case:

$a=1,\ b=7,\ c=8$

Then:

$x=\frac{-7\±\sqrt{7^2-4(1)(8)}}{2(1)}$

$x=\frac{-7\±\sqrt{49-32}}{2}$

$x=\frac{-7\±\sqrt{17}}{2}$

$x_1=\frac{-7+\sqrt{17}}{2}$

$x_2=\frac{-7-\sqrt{17}}{2}$

7 0

3 years ago

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sdas [7]

Answer:

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3 years ago

Solve the equation -6 = -9 - 3x for x

Xelga [282]

Answer:

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