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2 years ago

What is the error in the equation

Mathematics

1 answer:

dimulka [17.4K]2 years ago

4 0

Answer:

The fifth line contains the error.

Step-by-step explanation:

Line 1 is the equation.

Lines 2, 3, and 4 are correct.

The error is in the 5th line.

The square root of a negative number is not a real number, so if this problem is solved only with real numbers, there is no solution.

If imaginary numbers are allowed, then the last line should read:

$x = \pm\dfrac{i\sqrt{11}}{2}$

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How do I find the inverse function of this equation

trapecia [35]

Answer:

y=ln(x/(1-x))

Step-by-step explanation:

y=e^x/(1+e^x)

Cross multiply

y(1+e^x)=e^x

Distribute

y+ye^x=e^x

Put anything with x on with side and everything without x on opposing side:

y=e^x-ye^x

Factor right hand side

y=(1-y)e^x

Divide both sides by (1-y)

y/(1-y)=e^x

Use natural log.

ln(y/(1-y))=x

The inverse is

y=ln(x/(1-x))

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3 years ago

(m + n)3<br> for m = 1 and n = 1

Komok [63]

Answer:

3+3 am I right... I think I am

3 0

3 years ago

What is the mode of the data set?

Alex17521 [72]

1. the mode is 100 because 100 is the most common number in that sequence

2. the mean is 193.8 because if you add up 108, 306, 252, 113, and 191 then divide that by 5 you get 193.8

5 0

4 years ago

Read 2 more answers

Please help me! Thank you. :)

amm1812

Answer:

13.75/ hour

Step-by-step explanation:

$192.50/14 hours= $13.75/hour

$247.50/18 hours= $13.75/hour

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5 0

3 years ago

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Which of the following is equal to (3^-3)(3^7)? 3 ^-10 3 ^10 3 ^4 3 ^-4

bixtya [17]

Answer:

3⁴

Step-by-step explanation:

Hey there! To evaluate $\displaystyle \large{3^{-3} \cdot 3^7}$ , we can simply do by using one of exponent laws.

<u>Laws of Exponent</u>

<u /> $\displaystyle \large{a^m \cdot a^n = a^{m+n}}$

Hence, let m = -3 and n = 7. Therefore, $\displaystyle \large{3^{-3} \cdot 3^7 = 3^{-3+7} \to 3^4}$

Let me know if you have any questions regarding the exponent!

7 0

2 years ago