3 years ago

On a number line, show all values of x for which |x|>3

Mathematics

1 answer:

charle [14.2K]3 years ago

5 0

It’s something that’s for sure good luck!

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Round up 395,621 to the nearest ten thousand

jeyben [28]

396,000
because 5 goes up and anything lower than five stays the same

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2 years ago

Express p in terms of q if

Irina-Kira [14]

$p=x^2+\dfrac{1}{x^2}\\\\p=\dfrac{x^4}{x^2}+\dfrac{1}{x^2}\\\\p=\dfrac{x^4+1}{x^2}\qquad(*)$

$q=x+\dfrac{1}{x}\\\\q=\dfrac{x^2}{x}+\dfrac{1}{x}\\\\q=\dfrac{x^2+1}{x}\qquad\text{square both sides}\\\\q^2=\left(\dfrac{x^2+1}{x}\right)^2\\\\q^2=\dfrac{(x^2+1)^2}{x^2}\qquad\text{use}\ \ (a+b)^2=a^2+2ab+b^2\\\\q^2=\dfrac{(x^2)^2+2(x^2)(1)+1^2}{x^2}\\\\q^2=\dfrac{x^4+2x^2+1}{x^2}\\\\q^2=\dfrac{x^4+1}{x^2}+\dfrac{2x^2}{x^2}\\\\q^2=\dfrac{x^4+1}{x^2}+2\qquad\text{subtract 2 from both sides}\\\\q^2-2=\dfrac{x^4+1}{x^2}\\\\\text{From (*) we have}\\\\\boxed{p=q^2-2}$

8 0

2 years ago

the cost of plastering a wall of a room having length 8m and heights 4m at 4s 15 per m² is rs 1560 . find the cost of carpeting

Virty [35]

Answer:

Here,

length = 8m

height = 4m

4s = 15 per m^2

Now,

300 per meter = 300 * 15 per m^2

= 4500 per m^2

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2 years ago

When AB=3x+8 and GJ=2x+24 what is AB?

valina [46]

Answer:

AB= GJ ➗2

2x+24➗2= x+12

i'm not sure

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2 years ago

Emilia ate lunch at a restaurant. The bill came to $51. If she left a 15% tip, how much was the tip?

Arturiano [62]

Answer:

7.65

Step-by-step explanation:

15% of 51 is 7.65

4 0

3 years ago

Read 2 more answers