3 years ago

Simplify -4 + (-3) + 6. -1 5 13 18

Mathematics

2 answers:

Lisa [10]3 years ago

8 0

Answer:

-1

Step-by-step explanation:

Pemdas

() first then others

rusak2 [61]3 years ago

7 0

Answer:

-1

Step-by-step explanation:

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3 years ago

What is the domain of the funxtion f(x)=x+1/x^2-6+8

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3 years ago

Which shows all the values of x that make the rational expression undefined? x = 6 x = 7 x = –6 or x = 6 x = –7 or x = 7

n200080 [17]

<h2>Explanation:</h2>

The rational expression is given by:

$E=\frac{2x^2-72}{5x^2-245} \\ \\ Factor \ out: \\ \\ E=\frac{2(x^2-36)}{5(x^2-49)} \\ \\ E=\frac{2(x-6)(x+36)}{5(x-7)(x+7)} : \ \ \ \ a^2-b^2=(a-b)(a+b)$

The denominator can't be zero, therefore:

$(x-7)(x+7)\neq 0 \\ \\ \\ Thus: \\ \\ \boxed{x\neq 7 \ and x \neq -7}$

Finally,<em> the values of x that make the rational expression undefined are </em>

4 0

3 years ago

Need help! Do anyone know?

Katyanochek1 [597]

Could you please show the question so I can try to answer it

4 0

3 years ago

What other information do you need in order to prove the triangles congruent using the SAS Congruence Postulate?

Mazyrski [523]

Answer:

<CBA = <CDA

Step-by-step explanation:

Using <CBA = <CDA and Base angle theorem, you can say that AB = AD.

Now you have <CBA = <CDA, AB = AD, and CB = CD. These prove SAS.

5 0

3 years ago

Read 2 more answers