3 years ago

HELP ASAP What is the domain of the relation? -4<=x<=4 -4 -4<=x<=6 -4

Mathematics

1 answer:

IrinaK [193]3 years ago

3 0

Answer:

The Domain is -3

x I x>= -3

Step-by-step explanation:

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What is the exact distance from (-5, 1) to (3,0)?

Vlada [557]

Distance is calculated by the square root of (x2-x1)^2 + (y2-y1)^2

We simply substitute the values into this formula

Square root of (3--5)^2 + (0-1)^2

Which is 8

8 0

3 years ago

How can I solve |2x - 5| = 4?

Ray Of Light [21]

well, you already know an absolute value expression has a ± siblings, so let's proceed without much fuss.

$\bf |2x-5|=4\implies \begin{cases} +(2x-5)=4\implies 2x=9\implies x=\cfrac{9}{2}\\[-0.5em] \hrulefill\\ -(2x-5)=4\implies 2x-5=-4\\[1em] 2x=1\implies x=\cfrac{1}{2} \end{cases}$