Mathematics
06.11.2021 01:59
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The top speed of a peregrine falcon is 20 miles per hour less than three times the

The top speed of a peregrine falcon is 20 miles per hour less than three times the top speed of a cheetah. what is the cheetah's top speed?
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amelie1010
amelie1010
4,9(81 marks)
60 mph

20*3=60 
all you do after that is you convert it.

so all it takes is multiplication and just substitution.
juliopejfuhrf7336
juliopejfuhrf7336
4,6(43 marks)

Step-by-step explanation:

a) k(x) = (x - 2)² - 4 → x = (y - 2)² - 4 → (y - 2)² = x + 4 → y - 2 = ±√( x + 4) → y = 2 ±√( x + 4) → k-¹(x) = 2 ±√( x + 4)

b) f(x) = ½(x + 2)² - 3 → x = ½(y + 2)² - 3 → ½(y + 2)² = x + 3 → (y + 2)² = 2x + 6 → y + 2 = ±√(2x + 6) → y = -2 ±√(2x + 6) → f-¹(x) = - 2 ±√(2x + 6)

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