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3 years ago

HELP ASAP solve 5-2x<7

Mathematics

1 answer:

kaheart [24]3 years ago

6 0

Answer:

x>-1

Step-by-step explanation:

5-2x<7

Subtract 5 from each side

5-5-2x<7-5

-2x < 2

Divide by -2

Remember that flips the inequality

-2x/-2 > 2/-2

x> -1

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3 years ago

Read 2 more answers

What is the domain of the function f(x) = + 5?

Greeley [361]

Answer:

The domain of the function is:

$\mathrm{Domain\:of\:}\:\sqrt{x+5}\::\quad \begin{bmatrix}\mathrm{Solution:}\:&\:x\ge \:-5\:\\ \:\mathrm{Interval\:Notation:}&\:[-5,\:\infty \:)\end{bmatrix}$

Step-by-step explanation:

Given the function

$f\left(x\right)\:=\sqrt{x+5}$

We know that the domain of a function is the set of input or argument values for which the function is real and defined.

From the function, it is clear that for the values x<-5, the function becomes undefined.

For example, for x=-6

√x+5 = √-6+5 = √-1 which is undefined

and for x=-5

√x+5 = √5+5 = √0 which is defined

Thus, the domain of the function is:

$\mathrm{Domain\:of\:}\:\sqrt{x+5}\::\quad \begin{bmatrix}\mathrm{Solution:}\:&\:x\ge \:-5\:\\ \:\mathrm{Interval\:Notation:}&\:[-5,\:\infty \:)\end{bmatrix}$

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3 years ago

Read 2 more answers

HELP ASAP solve 5-2x<7​

HELP ASAP solve 5-2x<7