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prisoha [69]
3 years ago
14

PLEASE HELP ME WITH THIS MATHS QUESTIONS!!! WILL GIVE BRAINLIEST!!!

Mathematics
1 answer:
vampirchik [111]3 years ago
3 0

Answer:

a) y = (x+2)/3

b) 5

Step-by-step explanation:

f^-1(x) means "f inverse of x". To find the inverse, we simply:

a ) f(x) = 3x -2

    y = 3x - 2 --> because f(x) is the same thing as y

    x = 3y - 2 --> to find the inverse, we simply just switch x and y

    x + 2 = 3y

    y = (x+2)/3

b) f^-1(13)

   f^-1(13) = [((13) + 2)/3]

   f^-1(13) = (15)/3

   f^-1(13) = 5

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3 years ago
A spring is hanging from a ceiling. The length L(t) (in cm) of the spring as a function of time t (in seconds) can be modeled by
Zanzabum

Answer:

  L(t) = 5·sin(πt) +7

Step-by-step explanation:

The middle of the oscillation of the given function occurs when t=0. At that point, ...

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The next maximum of the oscillation occurs when the argument of the sine function is π/2.

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6 0
3 years ago
Simplify -2x+7=15, i need help understanding why it is -4
yulyashka [42]

Answer:

-4

Step-by-step explanation:

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Step 2: Divide both sides by -2.

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=

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3 0
3 years ago
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