2 years ago

Help me please these are for my finals. ! :(

Mathematics

1 answer:

Degger [83]2 years ago

4 0

Answer:

negitive

Step-by-step explanation:

good luck on finals

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What is the first step to solve this equation:<br> -3x + 12 = -40

ElenaW [278]

Answer:

Your supposed to cancel out 12 on both sides so u subtract 12 on both sides so the equation would be

-3x= -52

Step-by-step explanation:

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2 years ago

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Find the inverse function of <br><img src="https://tex.z-dn.net/?f=f%28x%29%20%3D%209%20%2B%20%20%5Csqrt%7B4x%20-%204%7D%20" id=

Vedmedyk [2.9K]

Answer:

$\displaystyle {f}^{ - 1}(x) = \frac{1}{4} (x - 18x + 85)$

Step-by-step explanation:

we would like to find the inverse of the following function:

$\displaystyle f(x) = 9 + \sqrt{4x - 4}$

to do so substitute y for f(x):

$\displaystyle y= 9 + \sqrt{4x - 4}$

interchange variables:

$\displaystyle x= 9 + \sqrt{4y - 4}$

cancel 9 from both sides:

$\displaystyle \sqrt{4y - 4} = x - 9$

square both sides:

$\displaystyle 4y - 4= x - 18x + 81$

add 4 in both sides:

$\displaystyle 4y = x - 18x + 85$

divide both sides by 4:

$\displaystyle y = \frac{1}{4} (x - 18x + 85)$

substitute back:

$\displaystyle {f}^{ - 1}(x) = \frac{1}{4} (x - 18x + 85)$

and we're done!

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2 years ago

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What is the 13th term of the geometric sequence with this formula

adell [148]

Answer:

Step-by-step explanation:

You plug in 13 to n-1. to get -2^12. This equates to 4096, and you multiply that by 3

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3 years ago

50 POINTS!!! MUST BE CORRECT OR I WILL DELETE IT AND REPORT IT!

Crank

Answer:

x=9

Step-by-step explanation:

-3 + 5x = 42

add 3 to both sides

5x=45

divide both sides by 5

x=9

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2 years ago

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Korolek [52]

Answer:

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Step-by-step explanation:

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3 years ago