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2 years ago

if 9<15mx-8<27, where m is a positive constant, what is the possible range of values of 8/3 -5mx?

Mathematics

2 answers:

ludmilkaskok [199]2 years ago

4 0

Answer:

Any value greater than -9 and less than -3 ( the person above is correct, thanks for points!!!)

Get it, let it ROLL!

Svetach [21]2 years ago

3 0

Answer:

Any value greater than -9 and less than -3

Step-by-step explanation:

Explained and uploaded

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3 years ago

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Answer:

Tyler needs 48 tickets.

Step-by-step explanation:

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2 years ago

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In another survey, Jane found that 25% of the total number of teenagers surveyed like sandwiches. If 50 teenagers like sandwiche

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3 years ago

What is the value of the rational expression 2x^2+5x+9/x^2+2x-1 when x=-2

Sergio039 [100]

Answer:

The value of the Rational expression when $x=-2$ is: $-7$

Step-by-step explanation:

For this exercise is important to remember:

When a negative number is raised to an even power, the result will be positive.
The multiplication of signs:

$(+)(+)=+\\(-)(-)=+\\(-)(+)=-$

Then, given the following Rational expression:

$\frac{2x^2+5x+9}{x^2+2x-1}$

You need to follow these steps in order to find its value when $x=-2$ :

1. Substitute the given value of "x" ( $x=2$ ) into the expression:

$\frac{2(-2)^2+5(-2)+9}{(-2)^2+2(-2)-1}$

2. Evaluate and simplify:

$\frac{2(4)+5(-2)+9}{4+2(-2)-1}=\frac{8-10+9}{4-4-1}=\frac{7}{-1}=-7$

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2 years ago

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