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3 years ago

PLEASE HELP FAST!! |x+5|>-1, what is x (answer in x equals to)

1 answer:

7 0

$(x+5)>-1 or -(x+5)>-1$

$x>-1-5 or x$

$x>-6 or x$

This gives us the union of two sets

$(-∞,-4) U (-6,+∞)$

$=(-∞,+∞)$

x belongs to all real numbers

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Which shows an equation in point-slope form of the line shown?

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Answer: Option (3)

Step-by-step explanation:

The slope of the given line is

$\frac{-2-4}{-6-2}=\frac{-6}{-8}=\frac{3}{4}$

Thus, the answer must be Option (3)

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2 years ago

A plumber charges customers a $50 fee for house calls, plus $25 per hour that he stays to work. Which linear function best model

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3 years ago

-2=-(n-8)=<br> Help please!??

motikmotik

Answer:

n = 10

Step-by-step explanation:

move all terms to the left:

-2-(-(n-8))=0

calculate terms in parentheses: -(-(n-8)), so:

-(n-8)

get rid of parentheses

-n+8

add all the numbers together, and all the variables

-1n+8

go back to the equation:

-(-1n+8)

get rid of parentheses

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add all the numbers together, and all the variables

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7 0

3 years ago

Consider the derivation of the quadratic formula below. What is the missing radicand

Vedmedyk [2.9K]

Answer:

$\frac{b^2 - 4ac}{4a^2}$

Step-by-step explanation:

Given

See attachment for complete question

Required:

Complete step 6

At step 5, we have:

$(x + \frac{b}{2a})^2 = \frac{b^2}{4a^2} - \frac{4ac}{4a^2}$

Take LCM

$(x + \frac{b}{2a})^2 = \frac{b^2 - 4ac}{4a^2}$

Take square roots of both sides to get step 6

$x + \frac{b}{2a} = \±\sqrt{\frac{b^2 - 4ac}{4a^2}}$

Hence, the missing radicand is: $\frac{b^2 - 4ac}{4a^2}$

5 0

3 years ago

Arrange the functions in ascending order, starting with the function that eventually has the least value and ending with the fun

netineya [11]

Answer:

3x < 4x < 3x + 8 < 4x + 3 < x² < x² + 6

Step-by-step explanation:

This is because as x → ∞

3x → 3∞ ,

Also, as x → ∞

4x → 4∞ ,

Also, as x → ∞

3x + 8 → 3∞ + 8,

Also, as x → ∞

4x + 3 → 4∞ + 3 ,

Also, as x → ∞

x² → ∞²,

Also, as x → ∞

x² + 6 → ∞² + 6

and 3∞ < 4∞ < 3∞ + 8 < 4∞ + 3 < ∞² < ∞² + 6

Thus as x → ∞

3x < 4x < 3x + 8 < 4x + 3 < x² < x² + 6 in ascending order

8 0

2 years ago