Is y = 0(x-4)2 + 3 a quadratic function? Explain?​

Answer: A

Step-by-step explanation: You know multiplying will be involved, so B can automatically be removed. It states that the length is 8 cm longer. You know absolutely nothing about the width, so the variable of w can be given for the width. You also know the length will be 8 cm longer, of w+8. w and w+8 will be multiplied, which gives you w(w+8).

Answer:

w(w+8)=48

Step-by-step explanation:

Final answer:

To finish reading 1 million pages while reading 1000 pages a month, it would take the student 1000 months.

Explanation:

To calculate how long it would take to finish reading 1 million pages, we need to find the number of months required. Since the student reads 1000 pages a month, we can set up a proportion:

1000 pages / 1 month = 1 million pages / x months

Cross-multiplying gives:

1000x = 1 million

Dividing both sides by 1000:

x = 1000 months

Therefore, it would take the student 1000 months to finish reading 1 million pages.

Answer:

1.30

Step-by-step explanation:

A

41 is not divisible by any number other than 1 and itself so it is prime and not composite and obviously 41 is a whole number so BCD are eliminated

Answer:

A. 41 is a prime number.

Step-by-step explanation:

Since we know that 8x5= 40 and 8x6= 48, it is not a prime number.

And even if you divide any number by 41, you won't get a whole number answer. So that is why 41 is a prime number.

Answer:

48

Step-by-step explanation:

6(24/4)+2

6(6)+2

6*8

48

i think its b

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Both points y is -2 so the answer is

the line y = -2.

Answer:  the correct option is

(c) y = -2.

Step-by-step explanation:  We are given to find the equation of a line that contains the points (2, -2) and (0, -2).

We know that

the slope of a line containing the points (a, b) and (c, d) is given by

[tex]m=\dfrac{d-b}{c-a}.[/tex]

So, the slope of the given line is

[tex]m=\dfrac{-2-(-2)}{0-2}=\dfrac{0}{-2}=0.[/tex]

Since the line has a point (2, -2) on it, so its equation will be

[tex]y-(-2)=m(x-2)\\\\\Rightarrow y+2=0(x-2)\\\\\Rightarrow y+2=0\\\\\Rightarrow y=-2.[/tex]

Thus, the required equation of the line is [tex]y=-2.[/tex]

Option (c) is CORRECT.

Answer:

36

Step-by-step explanation:

12 x 3 = 36

Answer:

decrease = 26.04

increase = 29.96

Step-by-step explanation:

Decrease of £28.00 by 7% = £28 -(7% of 28)

                                             = £28 - (0.07 × 28)

                                             = £28 - 1.96

                                             = £26.04

Increase of £28 by 7% = £28 +(7% of 28)

                                      = £28 +(0.7 × 28)

                                      = $28 + 1.96

                                      = £29.96

Decrease £28 by 7% would be £26.04

and increase £28 by 7% would be £29.96

Answer:

Part 1) [tex]f(2)=1[/tex]

Part 2) [tex]f^{-1}(1)=2[/tex]

part 3) [tex]f^{-1}(f(2))=2[/tex]

Step-by-step explanation:

we have that

[tex]f(x)=\frac{1}{2}x[/tex]

[tex]f^{-1}(x)=2x[/tex]

Part 1) Find f(2)

For x=2

substitute the value of x in f(x)

[tex]f(2)=\frac{1}{2}(2)[/tex]

[tex]f(2)=1[/tex]

Part 2) find [tex]f^{-1}(1)[/tex]

For x=1

Substitute the value of x in [tex]f^{-1}(x)[/tex]

[tex]f^{-1}(1)=2(1)[/tex]

[tex]f^{-1}(1)=2[/tex]

Part 3) Find [tex]f^{-1}(f(2))[/tex]

we know that

[tex]f(2)=1[/tex] -----> see part 1)

so

[tex]f^{-1}(f(2))=f^{-1}(1)[/tex]

we have that

[tex]f^{-1}(1)=2[/tex] -----> see part 2)

therefore

[tex]f^{-1}(f(2))=2[/tex]

Answer:

f(2) = 1

f−1(1) = 2

f−1(f(2)) = 2

Step-by-step explanation:

just did it egen2020

Answer:

1/(x + 1)

Step-by-step explanation:

1/(x² + 3)

x = √(x - 2)

1/((√(x - 2))² + 3

1/(x - 2 + 3)

1/(x + 1)

Answer:

GH = 96

Step-by-step explanation:

Since G is at the midpoint of RH then RG = SH and

GH = 7x - 23

Thus

RG + GH = RH ← substitute values

7x - 23 + 7x - 23 = 6x + 90

14x - 46 = 6x + 90 ( subtract 6x from both sides )

8x - 46 = 90 ( add 46 to both sides )

8x = 136 ( divide both sides by 8 )

x = 17

Hence

GH = 7x - 23 = (7 × 17) - 23 = 119 - 23 = 96

Answer:

96

Step-by-step explanation:

Drawing a picture helps to think this problem through. 2(7x-23)=6x+90 by midpoint theorem. Solve this equation.

14x-46=6x+90

8x=136

x=17

Substitute x in the equation for RG. 7(17)-23.

7x17=119

119-23=96

Answer:

The answer would be 43 because 62.25-18.92=43.34 therefore it would be rounded down the nearest whole number

Answer:

A

Step-by-step explanation:

First round both numbers to the nearest whole number which would be 62-19. Now calculate. The answer is 43

Answer: 7000

Step-by-step explanation:

Answer: OPTION C.

Step-by-step explanation:

The volume of a cube can be calculated with the following formula:

[tex]V=s^3[/tex]

Where "s" is the length of each edge of the cube.

Solving for "s":

[tex]s=\sqrt[3]{V}[/tex]

Let's check each option to find which volume would work according to the size she needs:

A. Substitute [tex]V=216in^3[/tex] into [tex]s=\sqrt[3]{V}[/tex], then:

[tex]s=\sqrt[3]{216in^3}=6in[/tex]

B. Substitute [tex]V=125in^3[/tex] into [tex]s=\sqrt[3]{V}[/tex], then:

[tex]s=\sqrt[3]{125in^3}=5in[/tex]

C. Substitute [tex]V=64in^3[/tex] into [tex]s=\sqrt[3]{V}[/tex], then:

[tex]s=\sqrt[3]{64in^3}=4in[/tex]

Based on these results, we can determine that the cubes with a volume of [tex]64in^3[/tex] would work.

Answer:

all work is pictured/shown

Answer:40,600

Step-by-step explanation:

10x10x10x10=10,000

10x10=100

4x10,000+6x100

40,000+600=

40,600

Answer: 40,600

Explanation:

4 X 10,000 + 6 X 100

40000 + 600

Answer:

9 people is 9/4 = 2.25 times more people than 4 people. So, they can do it faster. 3 hours/2.25 = 1.33 hours 1.33 hours x 60 minutes/hour = 80 minutes

Step-by-step explanation:

Answer: 1 hour 20 minutes

Step-by-step explanation:

Let's figure out how long it would take 1 person to dig the hole and then divide that number by 9 (since they are sharing the workload).

[tex]\dfrac{1}{4}x=3\qquad \implies \qquad x = 12\quad \text{It takes 12 hours for 1 person}\\\\\\\dfrac{12\ \text{(for 1 person)}}{9\ \text{(people)}}\quad =1\dfrac{1}{3}\quad =\large\boxed{1\ hour\ 20\ minutes}[/tex]

In the given figures figure C has no line of symmetry. Hence, option C is correct.

The line of symmetry is an imaginary line that divides an object into two equal and identical halves.

It is a reflectional symmetry, meaning that each point on one side of the line corresponds to an identical point on the other side.

This line can be vertical, horizontal, or even diagonal, depending on the shape or object being considered.

The line of symmetry is an important concept in geometry and can be found in various symmetrical objects like letters, shapes, and even faces.

If we rotate Figure C with respect to any axis we don't get an identical shape.

Therefore,

Figure C has no line of symmetry.

To learn more about line of symmetry visit:

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Answer: x = 2

Step-by-step explanation:

9 - 4x + 7 x = 15

             3x = 15-9

             3x = 6

               x = 2

Answer:

100 % - 65% = 35%

this means that 63.00 is 35% the original price

cross multiply:

$63 35%

$x 100%

100 * 63 = 6300

------------ ---------- = $180

35 35

original price $180

The original price, 100% of an item at the store is $180.00.

A percentage is a number or ratio that can be expressed as a fraction of 100. Percentage can be calculated by dividing the value by the total value, and then multiplying the result by 100.

For the given situation,

Amount paid by Joyce = $63.00

Consider the original price be 100%

65 percent off the original price = [tex]100 - 65[/tex]

⇒ [tex]35[/tex]

So, 35% of an item is $63.00

The original price 100% can be calculated as

⇒ [tex]\frac{63(100)}{35}[/tex]

⇒ [tex]\frac{63100}{35}[/tex]

⇒ [tex]180[/tex]

Hence we can conclude that the the original price, 100% of an item at the store is $180.00.

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Answer:

See explanation

Step-by-step explanation:

Let x be the number of minutes Charlene uses her phone per month and $y be the charge (in dollars) for x minutes of usage the phone.

A. Cell Plus gives unlimited minutes for $50/month. This paln doesn't depend on time, so

[tex]y=50[/tex]

A1 Cell offers a $40 monthly fee, plus $0.05/min for any time over 300 min per month, then

[tex]y=40+0.05(x-300)\\ \\y=40+0.05x-15\\ \\y=25+0.05x[/tex]

B. Attached diagram shows the graphs of these two functions.

C. The point of intersection is (500,50) and it represents the number of minutes x=500 when to plans have the same charges.

D. 10 hours = 600 minutes.

Cell plus charge = $50

A1 Cell charge [tex]=25+0.05\cdot 600=\$55[/tex]

Charlene has to choose Cell plus plan in this case.

6 hours = 360 minutes

Cell plus charge = $50

A1 Cell charge [tex]=25+0.05\cdot 360=\$43[/tex]

Charlene has to choose A1 Cell plan in this case.

The equation to model the given situation is x+y=30.

Given that, the perimeter of a rectangular room=60 feet.

The formula to find the perimeter of the rectangle is 2(l+b).

Where, l=length and b=width.

Let x be the width of the room (in feet) and let y be the length of the room (in feet).

So, 60=2(x+y)

⇒x+y=30

Therefore, the equation to model the given situation is x+y=30.

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Answer:

1.  45, 51

2. 40, 52

3. -64, 128

4. 63.5, 63.75

Step-by-step explanation:

1. It is adding 6 each time.

2. It adds 2, then 4, then 6, each time adding an extra 2 units. (another way to explain is, the original term, 2, that they add is multiplied by 2 each time)

3. It multiplies by -2 each time.

4. It adds 16, then 8, then 4, dividing the term that is added by 2 each time.

Attention:

I didn't do the bottom half of the homework, I will leave that for someone else to get the points. I hope this helps you. :)

Answer:

c -5.2 tell me if you need the explanation

Step-by-step explanation:

Answer:

the answer would be $3,582 dollars i hope u geta good grade and your welcome :3

Answer: The cost would be $1782 and $3582 respectively.

Step-by-step explanation:

Since we have given that

Number of MP3 players = 18

Number of CD/MP3 = 18

Cost of each MP3 = $99.00

Cost of each CD/MP3 = $199.00

So, the Cost of 18 MP3 would be

[tex]18\times 99\\\\=\$1782[/tex]

And, the cost of 18 CD/MP3 would be

[tex]199\times 18\\\\=\$3582[/tex]

Hence, the cost would be $1782 and $3582 respectively.