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3 years ago

NEED HELPPPPPPPPPP !

Mathematics

2 answers:

Kruka [31]3 years ago

8 0

Answer:

Step-by-step explanation:

trust me im the smartest guy in the world

Allisa [31]3 years ago

6 0

29 just use PEMDAS. Parentheses first meaning u need to simplify the exponent then add 14, then divide that answer by 2, and finally subtract 10

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Use f(x) = 1)2 and f^-1(x) = 2x to solve the problems. a) f(2) b)f^-1(1) c)f^-1(f(2))

Luden [163]

a) f (2) = 1

b) $f^{-1}(1)=2$

c) $f^{-1}(f(2))=2$

<u>Step-by-step explanation:</u>

$f^{-1}$ - Indicates that we have to find the inverse of the function

Given data:

$f(x)=\left(\frac{1}{2}\right) x$ --------> eq.1

$f^{-1}(x)=2 x$ ---------> eq.2

To find $f(2), f^{-1}(1), f^{-1}(f(2))$

Case a)

Now, substitute x = 2 in the equation 1 to find f (2)

$f(2)=\left(\frac{1}{2}\right) \times 2=1$

Case b)

Now, substitute x = 1 in the equation 2 to find $f^{-1}(1)$

$f^{-1}(1)=2(1)=2$

Case c)

In general,

$f^{-1}(f(x))=f\left(f^{-1}(x)\right)=x$

Thereby,

$f^{-1}(f(2))=2 \text { where } x=2$

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3 years ago

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alisha [4.7K]

Answer:

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Step-by-step explanation:

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A briefcase has a three-digit lock code that does not include zero as a digit. What is the probability that the lock code consis

ch4aika [34]

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The probability is therefore 15/1000 or 3/200.

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