3 years ago

What does 5(3 + 4) =

Mathematics

1 answer:

77julia77 [94]3 years ago

6 0

Answer: 35

Step-by-step explanation: 5 times 3, and 4 will get you 15 and 20 and that together and you will get 35

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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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Step-by-step explanation:

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Step-by-step explanation:

y is NOT a function of x because there is not a unique y for each x.

The vertical line through these three points is

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Step-by-step explanation:

95342 * 8% = 7627.36

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