2 years ago

I got about six questions

Mathematics

1 answer:

yulyashka [42]2 years ago

3 0

1.) 6(v-7+p)
2.) 6(4+3)
3.) -8(s-5+4m)
4.) -4(4k+7)
5.) -4(t+9+10q)
6.) -8(8s+3)

hope that helps you out !! ^^

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Find the error & find the correct answer 2In(x)=In(3x)-[In(9)-2In(3)] In(x^2)=In(3x)-[In(9)-In(9)] In(x^2)=In(3x)-0 In(x^2)=

Art [367]

Answer:

Error: $lnx^2=ln 3x$ not $ln\frac{3x}{0}$

Solution:x=0 and 3

Step-by-step explanation:

We have to find the error and correct answer

Given: $2ln x=ln(3x)-[ln9-2ln(3)]$

$lnx^2=ln(3x)-[ln9-ln3^2]$

Using the formula

$alog b=logb^a$

$lnx^2=ln(3x)-[ln9-ln9]$

$lnx^2=ln(3x)-0$

$lnx^2=ln(3x)$

$x^2=3x$

$x^2-3x=0$

$x(x-3)=0$

Therefore, x=0 and x=3

But last step in the given solution

$lnx^2=ln\frac{3x}{0}=\infty$

It is wrong this property is used when

$log m-log n$ then

$log\frac{m}{n}$

Hence, the student wrote $lnx^2=ln\frac{3x}{0}$ instead of $lnx^2=ln3x$ and solution is given by

x=0 and x=3

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Answer:

Step-by-step explanation:

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Four more than seven times a number is 12.” Write an equation that represents the statement. Then solve.

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7x + 4 = 12

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5+3.2n-4.8n=simplify the expression

dmitriy555 [2]

Answer:

5-1.6n

Step-by-step explanation:

5+3.2n-4.8n=5-1.6n

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