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3 years ago

Which function, b or c, is the inverse function for function a?

Mathematics

2 answers:

andrezito [222]3 years ago

8 0

Answer:

If the perimeter of the rectangle is 60 in, find its area.

Schach [20]3 years ago

4 0

Function Algebra Unit test

1. (F•g)(x)=3x-9/x+4

2. F^-1 (x) = -3x-4/x-7

3. ( -5 , 0) u ( 0 ,~)

4. D: (-~,2) u (2,~) R: (-~,0) u (0,~)

5. {y|0 _< y< 8}

6. Restricted domain : x _> -4 ;f^-1 (x) = -4+ sqrt x-3

7. The function C because the graphs of A and C are line symmetrical about the Y=X

8. (-~,-3) u (-3,-5/2) u (-5/2,~)

9. ( 4 points )

10. (g • f) (x)= x+3/sqrt x+2

11. (f•g) (x) = x+6 ; [ -2,~)

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Brianna has x nickels and y pennies. She has no less than 20 coins worth no more

Bond [772]

Answer:

$y \ge 20 - x$

$y \le 80 -5x$

$(x,y) = (15,5)$

Step-by-step explanation:

Given

$Nickels = x$

$Pennies = y$

$Amount = \$0.80$ maximum

$Coins = 20$ minimum

Required

Solve graphically

First, we need to determine the inequalities of the system.

For number of coins, we have:

$x\ +\ y\ge 20$ because the number of coins is not less than 20

For the worth of coins, we have:

$0.05x\ +\ 0.01y\ \le0.80$ because the worth of coins is not more than 0.80

So, we have the following equations:

$x\ +\ y\ge 20$

$0.05x\ +\ 0.01y\ \le0.80$

Make y the subject in both cases:

$y \ge 20 - x$

$0.01y \le 0.80 - 0.05x$

Divide through by 0.01

$\frac{0.01y}{0.01} \le \frac{0.80}{0.01} -\frac{ 0.05x}{0.01}$

$y \le \frac{0.80}{0.01} -\frac{ 0.05x}{0.01}$

$y \le 80 -5x$

The resulting inequalities are:

$y \ge 20 - x$

$y \le 80 -5x$

The two inequalities are plotted on the graph as shown in the attachment.

$y \ge 20 - x$ --- Blue

$y \ge 80 -5x$ --- Green

Point A on the attachment are possible solutions

At A:

$(x,y) = (15,5)$

4 0

3 years ago

Point A, located at (-2, 4), is translated down 6 units. What are the coordinates of A'?

lara [203]

(-8, 4) hope that helps

3 0

3 years ago

Read 2 more answers

-) You and a friend are at the store and want to buy some candy. You buy 7 bags of Gummy Bears and 3 bags of Chocolate and your

worty [1.4K]

24.00 hope this helps

6 0

3 years ago

A coin is tossed and a number cube is rolled what is the probability that the coin shows heads and the number cube shows six

Advocard [28]

Answer:

There is a 1/2 chance the coin will land on heads and there is a 1/6 chance that the number cube will land on 6. hope this helps

5 0

3 years ago

Frank's bank charges a variable finance rate of 1.5 percent on purchases up to $100, and one percent for purchases over $100. If

Brilliant_brown [7]

Answer:

Hi there, $4.04 should be his finance charge.

Step-by-step explanation:

4 0

3 years ago