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Shkiper50 [21]
3 years ago
7

Please help me with this question... please

Mathematics
2 answers:
LiRa [457]3 years ago
8 0

Answer:

b

Step-by-step explanation:

kolbaska11 [484]3 years ago
3 0

Answer:

B

Step-by-step explanation:

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ALGEBRA QUESTION PLS HELPS
cluponka [151]

The value of x is –7.

Solution:

Given expression:

$\left(\frac{1}{x+3}+\frac{6}{x^{2}+4 x+3}\right) \cdot \frac{x+3}{x+1}

Let us factor x^2+4x+3.

x^2+4x+3=(x+1)(x+3)

Substitute this in the fraction.

$\left(\frac{1}{x+3}+\frac{6}{(x+1)(x+3)}\right) \cdot \frac{x+3}{x+1}

To make the denominator same, multiply and divide the first term by (x +1).

$\left(\frac{(x+1)}{(x+1)(x+3)}+\frac{6}{(x+1)(x+3)}\right) \cdot \frac{x+3}{x+1}

Denominators are same, you can add the fractions.

$\left(\frac{x+1+6}{(x+1)(x+3)}\right) \cdot \frac{x+3}{x+1}

$\frac{x+7}{(x+1)(x+3)} \cdot \frac{x+3}{x+1}

Cancel the common term in the numerator and denominator.

$\frac{x+7}{x+1} \cdot \frac{1}{x+1}

Multiply the fractions.

$\frac{x+7}{(x+1)^2}

$\frac{x+7}{x^2+2x+1}

The expression is simplified to one rational expression.

Suppose the expression is equal to 0.

$\frac{x+7}{x^2+2x+1}=0

Do cross multiplication.

${x+7}=0\times (}{x^2+2x+1})

Any number or variable multiplied by 0 gives 0.

${x+7}=0

Subtract 7 from both sides of the equation.

${x+7-7}=0-7

x = –7

The value of x is –7.

7 0
3 years ago
Estimate 32% of 19.
Kipish [7]

Answer: 13

Step-by-step explanation: calculator

5 0
3 years ago
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What is the percent of decrease from 4 to 1
Iteru [2.4K]

Answer:

75%

Step-by-step explanation:

It went down by 3 so,

4-1=3

4 * 75% or 0.75=3

5 0
2 years ago
Plz tell me 12 x 12 = and 12 x 13 =
avanturin [10]

Answer:

12 x 12 = 144, 12 x 13 = 156

Step-by-step explanation:

3 0
3 years ago
Wat is 5/9-1/3<br> Equal to.
Llana [10]
\frac{5}{9}-\frac{1}{3}=\\\frac{5}{9}-\frac{1}{3}*\frac{3}{3}=\\\frac{5}{9}-\frac{3}{9}=\\\frac{2}{9}
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