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vampirchik [111]
3 years ago
13

These two Scalene triangles are similar with a scale of 5:2. What is true about these figures?

Mathematics
2 answers:
Alika [10]3 years ago
5 0

Answer:

top right one ac/df= 5/2

Step-by-step explanation:

i got it right on im

Ostrovityanka [42]3 years ago
4 0

Answer:AC/DF =5/2

Step-by-step explanation: since triangle ABC and triangle DEF have a scale of 5/2 the side from the bigger triangle (ABC) would be 5 and the smaller triangle (DEF) would be 2.

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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:

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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!

7 0
3 years ago
Read 2 more answers
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