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3 years ago

Find the value of the variable and DF if D is between C and F if CD 4y -9, DF 2y-7, and CF 14.

1 answer:

4 0

CF = CD + DF (since D is simply a point on the line, and C to that point added onto F to that point is CF), so 4y-9+2y-7=14. Adding it up, we get 6y-16=14 and adding by 16 we get 30=6y. Dividing both sides by 6, we get y=5. Plugging that into DF, we get 10-7=DF=3

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Answer:

Area - 6 unit^2 Perimeter - 10 units

Step-by-step explanation:

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6 0

3 years ago

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Vitek1552 [10]

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Which of the following is the inverse of y = 12 Superscript x? y = log Subscript one-twelfth Baseline x y = log Subscript 12 Bas

wariber [46]

Answer:

y = lnx/ln12

Step-by-step explanation:

Given the function y = 12^x, to find the inverse of the function, we news to write x as a function of y as shown:

Given y = 12^x

Taking ln of both sides

ln y = ln 12^x

ln y = xln12

Divide both sides by ln12

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x = lny/ln12

x = ln(y-12)

Replacing y with x and x with y

The inverse of the function will be:

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3 years ago

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Ira Lisetskai [31]

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