Determine the inverse of a function. please help!​

Answer:

The answer would be -17

Step-by-step explanation:

On evaluation of  19 - 11 + (-17) + (-19) + 11 will result in -17

Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a statement. It's possible to multiply, divide, add, or subtract with this mathematical operation.

Using the concept that

+ - = -

On opening the brackets,

19 -11 + -17 + - 19 + 11=19-11-17-19+11

=19-19-17-11+11

=-17

Thus, 19 - 11 + (-17) + (-19) + 11 can be evaluated as -17

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Answer:

Bar graph

Step-by-step explanation:

Answer: Jordana will need 92 feet of fencing

Step-by-step explanation:

Given: Length of rectangle = 28 feet

Width of rectangle = 14 feet

Diameter of semicircle = 14 feet

Therefore radius of semicircle : r = [tex]\dfrac{Diamater}{2} =\dfrac{AB}{2} =\dfrac{14}{2} =7 \text { feet }[/tex]

Now we have to find the perimeter of attached figure for putting fence around a garden

[tex]Perimeter = 2 Length +Width + \text {Circumference of semicircle }\\\\\Rightarrow Perimeter = 2\times AD+DC + \pi r\\\\\Rightarrow Perimeter = 2\times 28+14 +\dfrac{22}{7} \times 7 \\\\\Rightarrow Perimeter = 56+14+22 = 92 \text {feet}[/tex]

Hence, jordana will need 92 feet of fencing

Answer:

the answer is 92 (or C)

Step-by-step explanation:

I did the review

Answer:

They were exposed to the same agents of weathering

Answer:

To convert a quadratic from y = ax2 + bx + c form to vertex form, y = a(x - h)2+ k, you use the process of completing the square. Let's see an example. Convert y = 2x2 - 4x + 5 into vertex form, and state the vertex. I had this question and got it right. Have a great day

Step-by-step explanation:

Answer:

x=4, y=5

Step-by-step explanation:

2y=x+6

3x=y+7

If you subtract 6 from both sides of the first equation, x will be isolated and you can plug it into the second equation. The new first equation is 2y-6=x, which when plugged into the second equation yields:

3(2y-6)=y+7

6y-18=y+7

5y=25

y=5

x=4

Hope this helps!

Final answer:

To solve the given system of linear equations, we use substitution to express x in terms of y from one equation and substitute it into the other, giving us the solution x = 4, y = 5.

Explanation:

The solution to a system of linear equations can be found by various methods, including substitution or elimination. The given system, which appears to be:

This can be solved by using these methods. First, we will express one variable in terms of the other from one of the equcations and then substitute this into the second equation. Taking the first equation:

2y = x + 6

we can solve for x:

x = 2y - 6

Now, we substitute x in the second equation:

3(2y - 6) = y + 7

This simplifies to:

6y - 18 = y + 7

Now, let's solve for y by isolating it on one side:

6y - y = 7 + 18

5y = 25

y = 5

With the value of y, we can now substitute back into the equation x = 2y - 6 to find x:

x = 2(5) - 6

x = 10 - 6

x = 4

Therefore, the solution to the system of equations is x = 4, y = 5.

Answer: A

Step-by-step explanation:

Answer:

24.5

Step-by-step explanation:

First, I subtracted 50 from 75.

75 - 50 = 25

Then, subtract 0.5 from 25.

25 - 0.5 = 24.5

I hope this helps!

Answer:

z=6

Step-by-step explanation:

3z/2=9

3x6=18/2=9

Answer:

The circumference of a circle with radius length of 1 1/2 units is:  

6.2832 units.

Step-by-step explanation:

Answer:

[tex]9.42[/tex]

Step-by-step explanation:

I used the equation [tex]C=2[/tex]π[tex]r[/tex]. I hope I could help you :))

Answer: 21.67 and full Answer is 21.6732

Step-by-step explanation: $108.36 divide by 5!

Answer:

They both equal 30, so if the question is are both equal the statement is true!

Note: I would appreciate if you give me 5 stars, a thanks, and brainiest :)

The equation that shows the cost of x gallons of gas is given as y = 2x

An equation is an expression that shows the relationship between two or more numbers and variables.

Let y represent the cost of x gallons of gas. Gas costs $2 per gallon, hence:

y = 2x

The equation that shows the cost of x gallons of gas is given as y = 2x

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Answer:

The volume of the cylinder is 432π

Step-by-step explanation:

Volume of a Cylinder is, πr²h where r = radius and h = height of the cylinder.

so, πr²h = π×6²×12 = 432π

Answered by GAUTHMATH

Answer:

A) 432

Step-by-step explanation:

Answer:

Only the x-value changes.

Step-by-step explanation:

When a point is reflected over the y-axis, it is the x-axis number that will flip it's sign.

When a point is reflected over the x-axis, it is the y-axis number that will flip it's sign.

~

Answer:

Area is 14608in²

Step-by-step explanation:

this problem is based on mensuration of flat shapes, polygon

Octagon number of sides n= 8

The expression for the area of polygon given apothem and side

Is

Area= (n*s*a)/2

Given n= 8

s= 55in

a= 66.4in

Substituting our given data we have

Area = (8*55*66.4)/2

Area = 29216/2

Area = 14608in²

The area of the regular octagon is [tex]\( 14608 \)[/tex] square inches.

The area of a regular polygon can be calculated using the formula:

[tex]\[ A = \frac{1}{2} \times a \times p \][/tex]

where [tex]\( A \)[/tex] is the area, [tex]\( a \)[/tex] is the apothem, and [tex]\( p \)[/tex] is the perimeter of the polygon.

For a regular octagon, the perimeter [tex]\( p \)[/tex] is given by:

[tex]\[ p = n \times s \][/tex]

where [tex]\( n \)[/tex] is the number of sides and [tex]\( s \)[/tex] is the length of one side. Since an octagon has 8 sides:

[tex]\[ p = 8 \times s \][/tex]

Given that [tex]\( s = 55 \)[/tex] in, we can calculate the perimeter:

[tex]\[ p = 8 \times 55 \text{ in} = 440 \text{ in} \][/tex]

Now, we can calculate the area of the regular octagon with the given apothem [tex]\( a = 66.4 \)[/tex] in and side length [tex]\( s = 55 \)[/tex] in:

[tex]\[ A = \frac{1}{2} \times a \times p \][/tex]

[tex]\[ A = \frac{1}{2} \times 66.4 \text{ in} \times 440 \text{ in} \][/tex]

[tex]\[ A = 33.2 \text{ in} \times 440 \text{ in} \][/tex]

[tex]\[ A = 14608 \text{ in}^2 \][/tex]

Answer:

50 + 4 + . 8/10 I think

Step-by-step explanation:

54.8

The number 'fifty-four and eight tenths' in expanded form is represented as 50 + 4 + 0.8. Each digit's place value is broken down in this representation.

The number 'fifty-four and eight tenths' is typically represented in decimal form as 54.8. In expanded form, we break down each digit's place value. Here are the steps:

When combined, the expanded form of 54.8 is 50 + 4 + 0.8.

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Answer:

A

Step-by-step explanation:

a. type in 2⁻³ in the calculator and you get 0.125, which is 1/8.

b. Anything to the power of 0 will equal 1. :)

Answer:

A.

Step-by-step explanation:

a.

when you have a negative exponent, the simplified value becomes a fraction:

2^-3

1/2^3

1/8

b.

any number to the power of 0 is equal to one:

(5.5)^0

1

Hope this helps :)

Answer:

15 km

Step-by-step explanation:

The formula to find the hypotenuse of a right triangle

Is the square root of [tex]a^{2} +b^{2}[/tex]

a and b represent the side lengths so just plug in the side lengths for a and b

it doesn't matter which side you make a or b

square a and b

square root of 144+81

add them

[tex]\sqrt{225}[/tex]

solve

15

add your units and you're done

15 km

Answer: A

n-4(32.5) > 300;n > 430tep-by-step explanation:

given that Zack wants to make a profit of more than $300 for painting 4 identical rooms. That is

Profit > $300

Then, the profit he makes is equal to the amount he is paid minus the cost of supplies. The cost of supplies is $32.50 for each room. That is

n - 32.5 and

P + 32.5 × 4

Where 4 = number of rooms

P + 130

The minimum profit = 300 + 130 = $430

Therefore, the inequality and solution that represent the dollar amount, n, that zack must be paid for each room if he is to make a profit of more than 300$ is

n-4(32.5) > 300;n > 430

Final answer:

The correct inequality to represent the amount Zack must be paid per room to make a profit of more than $300 is C: (n-32.5) > 300; n > 107.5. After solving the inequality, it shows that n must be greater than $107.5 per room.

Explanation:

Zack aims to make a profit of more than $300 for painting 4 identical rooms. The cost of supplies per room is $32.50, and Zack's profit is based on what he's paid minus the supplies costs. To find the minimum amount, n, he needs to be paid per room to achieve this profit, we set up an inequality where the total amount paid for all rooms minus the total cost of supplies is greater than the desired profit.

The correct inequality is:

4n - 4(32.5) > 300

When simplified, this inequality becomes:

4n > 300 + 4(32.5)

4n > 300 + 130

Now, we solve for n:

4n > 430

n > 107.5

This means each room must be paid for an amount greater than $107.5 for Zack to make his desired profit. Therefore, the correct answer is C.

Answer:

12 or 13

hope this helps

Answer:

13

Step-by-step explanation:

Answer:

(a) (x + 3)(2x + 7) = 0

(b) These solutions mean that for these two x values, f(x) is equal to 0. It's also where the graph of f(x) crosses the x-axis.

Step-by-step explanation:

(a) We set 4x² -26x + 42 equal to 0:

4x² -26x + 42 = 0

Let's divide both sides by 2 to simplify this a bit:

2x² - 13x + 21 = 0

Now, we need factors a and b of 2 and c and d of 21 such that ac + bd = -13. The factors of 2 are: 1 and 2, so let's say a = 1 and b = 2. The factors of 21 are: (1, 21), (3, 7), (-1, -21), and (-3, -7). We see that if c = -7 and d = -3, this works:

ac + bd = 1 * (-7) + 2 * (-3) = -7 - 6 = -13

So, the factored form is:

(x - (-3))(2x - (-7)) = 0

(x + 3)(2x + 7) = 0

(b) So now we need to solve this. Set each of the two parenthetical expressions equal to 0:

x + 3 = 0

x = -3

AND

2x + 7 = 0

x = -7/2

These solutions mean that for these two x values, f(x) is equal to 0. It's also where the graph of f(x) crosses the x-axis.

Answer:

a) 2(x - 3)(2x - 7) = 0

b) function is 0 when x = 3 or 7/2

Step-by-step explanation:

4x² - 26x + 42 = 0

2(2x² - 13x + 21) = 0

2[2x² - 6x - 7x + 21] = 0

2[2x(x - 3) - 7(x - 3)] = 0

2(x - 3)(2x - 7) = 0

Solutions:.

x = 3, 7/2

Answer:

37.68 ft.

Step-by-step explanation:

Answer: [tex]37.68ft[/tex]

Step-by-step explanation:

[tex]Formula: C=\pi d[/tex]

Replace

[tex]C=(3.14)(12ft)\\C=37.68ft[/tex]

Answer:

Its easy

Step-by-step explanation:

Just think and ask teachers for help math is easy if your good at anything else in school , then math should be easy it have to do with all that.

Answer:

All exponential functions try to cross the x axis but never do

Step-by-step explanation:

Answer:

Height x Width (length x breadth)

Step-by-step explanation:

4X3=12

Answer:

4.45

Step-by-step explanation

Answer:

Step-by-step explanation:

445

First, we move the decimal 2 spaces which give us 4.45

4.45 rounded is 4.45 so that is our answer

Step-by-step explanation:

The given equation is y = 23.67x + 13.12, where y is the value of the stock ABC and x is the number of days. The r-value of 0.9957 indicates a strong positive correlation between the two variables, which suggests that the equation is a good fit for predicting the value of the stock.

To find the value of the stock ABC at x = 28 days, we need to substitute x = 28 into the equation and solve for y:

y = 23.67(28) + 13.12

y = 663.76 + 13.12

y = 676.88

Therefore, the predicted value of the stock ABC at x = 28 days is $676.88.

The closest answer option is D. 675.88, but the correct answer is actually slightly higher at $676.88.

We are given a linear equation y = 23.67x + 13.12, where 'x' is the number of days and 'y' is the stock value.

Now, we need to predict the stock value for 'x' equals to 28 days. To do so, we substitute x = 28 into the equation.

Start by multiplying the given value of x with the slope:
23.67 times 28 equals 662.76.

Next, add the y-intercept to the result from the first step. So you take 662.76 and you add 13.12.
The sum is 675.88.

So, according to our calculation, the ABC stock would be worth 675.88 on the 28th day.

So, the answer is

Answer: D. 675.88.