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Dimas [21]
3 years ago
15

Which table does not represent a proportional relationship?

Mathematics
2 answers:
expeople1 [14]3 years ago
8 0

Answer:

the first one

Step-by-step explanation:

i just did it on edgenuity

OleMash [197]3 years ago
7 0
Answer: the third one

Explanation: 12:2, 18:3, but 22 isn’t equivalent to 4
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Find the next two terms in this sequence, 16, 8, 4, 2, 1 ​
sweet-ann [11.9K]

Answer:

\frac{1}{2} and \frac{1}{4}

Step-by-step explanation:

The pattern is that a term gets divided by 2 to find the next term. 1 divided by 2 is \frac{1}{2} and when you divide that by 2 you get \frac{1}{4}

3 0
3 years ago
Evaluate w/4 - 4 when w=20 <br> A) 0<br> B)1<br> C)4<br> D)5
Sphinxa [80]
The answer is B because 20/4 equals 5 then 5-4 equals 1. So therefore your answer is B)1
3 0
2 years ago
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Simplifying Rational Expressions: I need answers for both 7 and 8 below. Answers for just one or the other is also fine.
seropon [69]

Answer:

<h2> 1. Option A</h2><h2 /><h2> 2. Option D</h2>

Step by step explanation

1. \frac{1}{1 - x}  +  \frac{x}{ {x}^{2}  - 1}

Use \frac{ - a}{b}  =  \frac{a}{ - b}  =  -  \frac{a}{b} to rewrite the fractions

-  \frac{1}{x - 1}  +  \frac{x}{(x - 1)(x + 1)}

Write all numerators above the Least Common Denominator ( X - 1 ) ( X + 1 )

\frac{ - (x + 1) + x}{(x - 1)(x + 1)}

When there is a ( - ) in front of an expression in parentheses , change the sign of each term in the expression

\frac{ - x - 1 + x}{(x - 1)(x + 1)}

Using (a - b)(a + b) =  {a}^{2}  -  {b}^{2} , simplify the product

\frac{ - x  - 1 + x}{ {x}^{2} - 1 }

Since two opposites add up to zero, remove them from the expression

\frac{ - 1}{ {x}^{2}  - 1}

So, Option A is the right option.

___________________________________

2.

\frac{ {x}^{2}  - x - 12}{ {x}^{2}  - 16}  -  \frac{1 - 2x}{x + 4}

Write - X as a difference

\frac{ {x}^{2} + 3x - 4x - 12 }{ {x}^{2} - 16 }  -  \frac{1 - 2x}{x + 4}

Using {a}^{2}  -  {b}^{2}  = (a - b)(a + b) , factor the expression

\frac{ {x}^{2} + 3x - 4x - 12 }{(x - 4)(x + 4)}  -  \frac{1 - 2x}{x + 4}

Factor the expression

\frac{x(x + 3) - 4(x + 3)}{(x - 4)(x + 4)}  -  \frac{1 - 2x}{x  + 4}

Factor out X+3 from the expression

\frac{(x + 3)(x - 4)}{(x - 4)(x + 4)}  -  \frac{1 - 2x}{x + 4}

Reduce the fraction with x-4

\frac{x + 3}{x + 4}  -  \frac{1 - 2x}{x  + 4}

Write all the numerators above the common denominator

\frac{x + 3 - ( 1- 2x)}{x + 4}

When there is a (-) in front of an expression in parentheses, change the sign of each term in the expression

\frac{x + 3 - 1 + 2x}{x + 4}

Collect like terms

\frac{3x + 3 - 1}{x + 4}

Subtract the numbers

\frac{3x + 2}{x + 4}

Undefined at,

X + 4 = 0

Move constant to R.H.S and change its sign

x = 0 - 4

Calculate

x =  - 4

So, the answer is :

\frac{3x + 2}{x + 4} , undefined at X = -4 and 4

Hope this helps..

Best regards!!

5 0
3 years ago
I HAVE ALGEBRA 2 QUESTIONS ON MY PAGE 50 POINTS EACH PLEASE SOMEONE HELP !!
Naddika [18.5K]

Answer:

Where is the paper?

Step-by-step explanation:

6 0
2 years ago
2[x-3]+1=7. <br><br> Help me pls
Mandarinka [93]

Answer:

2(x - 3) + 1 = 7 \\ 2(x - 3) = 7 - 1 \\ 2x - 2 \times 3 = 6 \\ 2x - 6 = 6 \\ 2x = 6 + 6 \\ 2x = 12 \\ x =  \frac{12}{2}  = 6 \\ x = 6 \\ thank \: you

8 0
2 years ago
Read 2 more answers
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