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2 years ago

What is the inverse of the function f(x) = 2x + 1?

Mathematics

1 answer:

Schach [20]2 years ago

8 0

Answer:

The first option ,f^-1(x)=1/2*x-1/2

Step-by-step explanation:

f(x)=2x+1

y=2x+1

Interchanging the places of x and y, we get,

x=2y+1

(x-1)/2=y

f^-1(x)=(x-1)/2

f^-1(x)=1/2*x-1/2

The first option.

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Answer:

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3 years ago

The price of the X-40 Laser Printer at five different stores $99 $68 $98 $105 and $90. The mean price is $92 and the median pric

masya89 [10]

Answer:

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8 0

2 years ago

Read 2 more answers

The information below applies to a competitive firm that sells its output for $40 per unit.

drek231 [11]

Answer: Option 'c' is correct.

Step-by-step explanation:

Since we have given that

On producing 150 units, its average total cost = $24.50

We need to find the total cost.

As we know that

$Average\ cost=\dfrac{Total\ cost}{No.\ of\ units}\\\\total\ cost=Average\ cost\times No.\ of\ units\\\\total\ cost=24.50\times 150\\\\total\ cost=\$3675$

Hence, total cost is $3675.00.

Therefore, Option 'c' is correct.

3 0

3 years ago

An airplane travels 290 km between Austin and Dallas in 1 h 15 min. What is it’s average speed?

aniked [119]

The average speed of the plane between Austin and Dallas is 232 kmph

Solution:

Given that,

Total distance traveled by airplane = 290 km

Time taken for travel between Austin and Dallas = 1 hour 15 minute

Let us convert the time taken to hours

$\begin{array}{l}{1 \text { minute }=\frac{1}{60} \text { hours }} \\\\ {15 \text { minutes }=\frac{15}{60}=\frac{1}{4}} \\\\ {\text { 1 hour } 15 \text { minutes }=1 \frac{1}{4} \text { hours }=\frac{1 \times 4+1}{4}=\frac{5}{4} \text { hours }}\end{array}$