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Ipatiy [6.2K]
2 years ago
7

The sum of the ages of two sisters is 36. The younger sister is 6 more than a fifth of the older sister's age. How old is each s

ister? *
Mathematics
1 answer:
melomori [17]2 years ago
7 0

Answer:

bxksbdjsksjdjsksjjxkzjxjxosjzhxbxbxkJzbxjjxkahsjsbx no isjxks

36

6

2. =42 is the answer

4

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maria [59]

Answer: x= -1, y= -6

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3 years ago
The graph below shows the function f(x)=x-3/x2-2x-3. Which statement is true?
BARSIC [14]
1. Domain.

We have x^2-2x-3 in the denominator, so:

x^2-2x-3\neq0\\\\(x^2-2x+1)-4\neq0\\\\(x-1)^2-4\neq0\\\\(x-1)^2-2^2\neq0\qquad\qquad[\text{use }a^2-b^2=(a-b)(a+b)]\\\\(x-1-2)(x-1+2)\neq0\\\\&#10;(x-3)(x+1)\neq0\\\\\boxed{x\neq3\qquad\wedge\qquad x\neq-1}

So there is a hole or an asymptote at x = 3 and x = -1 and we know, that answer B) is wrong.

2. Asymptotes:

f(x)=\dfrac{x-3}{x^2-2x-3}=\dfrac{x-3}{(x-3)(x+1)}=\boxed{\dfrac{1}{x+1}}

We have only one asymptote at x = -1 (and hole at x = 3), thus the correct answer is A)
6 0
3 years ago
Read 2 more answers
SIMPLIFY and SHOW WORK THANKS 3∙[ 9 – 2∙ (7 – 8)]
Zepler [3.9K]

Answer:

33

Step-by-step explanation:

3∙[ 9 – 2∙ (7 – 8)]

PEMDAS,

Parentheses, start from the inside out

3∙[ 9 – 2∙ (-1)]

3∙[ 9 +2]

3* 11

33

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3 years ago
Eric created a rectangular patio using 1 foot square paving stones,which are sold in batches by the dozen. The patio measures 7
Nuetrik [128]
I believe it is 56 because 7•8 is 56 and 1•56 is 56
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true

Step-by-step explanation:

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