How many solutions does the system of equations graphed below have?

Answer:

Step-by-step explanation:

t(100-75)/100=2

t(25/100)=2

t=200/25

t=8 hours

Answer:

a) The addition property of equality

b) The division property of equality

Step-by-step explanation:

Here, we want to know the correct step to use

From the given question, to proceed;

All we have to do is to move the value that has a negative value on the left hand side to the right hand side

what accompanies this is the addition of the both terms, on the right hand side

After this, we now proceed to divide the sum by the coefficient of x

Thus, the correct choices are;

a) The addition property of equality

b) The division property of equality

-1/9 < -0.87 < -5/6 < -0.23

Answer:

B

Step-by-step explanation:

some people can't understand lafossefams joke

The method of completing the squares method will be used for the next step. The next step would be ( x+ (b/2a)  )^2 = -c/a + b^2/(4a^2)

Suppose that two terms are 'a' and 'b'.

Then, their sum's square is expanded as:

[tex](a+b)^2 = a^2 + 2ab + b^2[/tex]

For this case, we're given the quadratic equation with its 4 steps of solution as:

[tex]ax^2 + bx + c = 0\\\\\dfrac{ax^2}{a} + \dfrac{bx}{a} + \dfrac{c}{a} = 0\\\\x^2 + \dfrac{bx}{a} + \dfrac{c}{a} = 0\\\\x^2 + \dfrac{bx}{a} = -\dfrac{c}{a}\\\\x^2 + \dfrac{bx}{a} + \dfrac{b^2}{4a^2} = -\dfrac{c}{a} + \dfrac{b^2}{4a^2}[/tex]

We've to proceed to the next step.

In the left hand side, we can use the formula [tex](a+b)^2 = a^2 + 2ab + b^2[/tex], where [tex]\rm a \: is \: x^2, and \: b \: is \: \dfrac{b}{2a}[/tex]

Thus, we have:

[tex]x^2 + \dfrac{bx}{a} + \dfrac{b^2}{4a^2} = x^2 + 2 \times x \times \dfrac{b}{2a} + \left(\dfrac{b}{2a} \right)^2 = \left( x + \dfrac{b}{2a} \right)^2[/tex]

We expressed the left sided expression in this form so that the variable 'x' (which is assuminly the only variable in the equation, whose value is to be known) gets packed into single container and not spread throughout with different powers.

Now, we can use square root and then subtraction and division of some terms which will make 'x' stay on one side of the equation, and rest of the constants on other side, as the value of 'x' for which the considered equation [tex]ax^2 + bx + c = 0[/tex] is correct.

The next step of the solution, therefore, is:

[tex]\left( x + \dfrac{b}{2a} \right)^2 = \dfrac{-c}{a} + \dfrac{b^2}{4a^2}[/tex]

Learn more about completing the squares method here:

https://brainly.com/question/16800259

#SPJ2

Answer:

3 layers

Step-by-step explanation:

Given

[tex]L = 1cm[/tex] --- side length of the cube

Each layer = 2 * 2 cube

[tex]Volume = 24cm^3[/tex]

Required

Determine the number of layers

First, we calculate the volume of each layer:

The length of the layer is:

[tex]Length = 2 * L[/tex]

[tex]Length = 2 * 1cm[/tex]

[tex]Length = 2cm[/tex]

Next, we calculate the volume of each layer:

[tex]Volume = Length^3[/tex]

[tex]Volume = (2cm)^3[/tex]

[tex]Volume = 8cm^3[/tex]

The number of layer is calculated by dividing the volume of the tower by the volume of each layer

[tex]Layers = \frac{24cm^3}{8cm^3}[/tex]

[tex]Layers = 3[/tex]

Answer:

Please refer to the attachment

Answer:

B) 4√2

General Formulas and Concepts:

Calculus

Differentiation

Basic Power Rule:

Parametric Differentiation

Integration

Arc Length Formula [Parametric]:                                                                         [tex]\displaystyle AL = \int\limits^b_a {\sqrt{[x'(t)]^2 + [y(t)]^2}} \, dx[/tex]

Step-by-step explanation:

Step 1: Define

Identify

[tex]\displaystyle \left \{ {{x = t - cos(t)} \atop {y = 1 - sin(t)}} \right.[/tex]

Interval [0, π]

Step 2: Find Arc Length

Topic: AP Calculus BC (Calculus I + II)

Unit: Parametric Integration

Book: College Calculus 10e

Answer:

088y765

Step-by-step explanation:

Answer:

c(n) = 2.25n + 4

g(n) = 2n + 6

Solve:

[tex]g(n) = c(n)[/tex]

so:

[tex]2n + 6 = 2.25n + 4\\2 = 0.25n\\n = 8[/tex]

plug this in:

[tex]g(n) = 2n + 6\\g(n) = 2 * 8 + 6\\g(n) = 16 + 6 = 22[/tex]

Both Chef Mate and Grocery Gourmet charge $22 for 8 ounces of vanilla extract.

Answer:

10x=4

x=4/10

x=2/5

Step-by-step explanation:

Answer:

3x+4x+3x=12-8

10x=4

x=4/10

x=2/5

x= o.4

hope you have a nice day

( •_•)>⌐■-■        ( ⌐■_■)

               -kay

Answer:

-4636833600

Step-by-step explanation:

6 x 92 x 10^-3 + 4 x 84 x 10^-2

552 x 10^-3 + 4 x 84 x 10^-2

552 x 1000 = 552,000 +4 = 552,004 x 84 = 46368336 x -100 = -4636833600

Answer:

C - A -B - C -A

Step-by-step explanation:

Answer:

Office Max

Step-by-step explanation:

Office Max charges $3.50 for each notebook. Staples charges $4 for each notebook. You can achieve this answer by dividing cost by the number of notebooks.

Answer:

1/10. 10% Since there are 30 pens, there are 3 black ones.

Answer:

The fraction of the black pens in the pack is [tex]\frac{3}{30}[/tex]

The percent of the black pens in the pack is 10%

Step-by-step explanation:

If 1/10 pens are black, we can use this same proportion to find how many black pens will be in the pack of 30.

Using this, there will be 3/30 pens that will be black, since 3/30 is equivalent to 1/10 when reduced.

So, the fraction of the black pens in the pack is [tex]\frac{3}{30}[/tex]

To find the percent, divide 3 by 30:

3/30

= 0.1 (10 percent)

So, the percent of the black pens in the pack is 10%

Answer:

easy

x=4 y=7 or

x=4 y=-1

Step-by-step explanation:

x=4 y=7 or

x=4 y=-1

Answer:

q

Step-by-step explanation:

Answer:

no

Step-by-step explanation:

Answer:

556 degrees i think

Step-by-step explanation:

Answer:

I think 3 have more, but I am not 100 percent

Coefficient of 14x is 14

Coefficientis the number in front of the letter. For example, coeffient of 2b is 2. When there is no number in front of the letter the coefficient is 1.

Answer:

$477

Step-by-step explanation:

Net Price:$ 450.00

+ Sales Tax (6%):$ 27.00

Total Price:$ 477.00

Answer:

642 right??

Step-by-step explanation:

Was this the answer you were looking for?

Answer:

1 3/8

Step-by-step explanation:

Answer:

y=q(x-r)+p

Step-by-step explanation:

y-y1=m(x-x1)

y-p=q(x-r)

y=qx-qr+p

y=q(x-r)+p

Answer: R = 3/7

Step-by-step explanation:

The complete question is:

Erin loves to play sports! She has earned 3 tennis trophies, 4 basketball trophies, 7 soccer trophies, and 1 volleyball trophy.

What is the ratio of Erin's tennis trophies to soccer trophies?

This is simply the quotient between the number of tennis trophies and the number of soccer trophies.

She has 3 tennis trophies and 7 soccer trophies, then the ratio is:

R = 3/7

Answer:

option A

Step-by-step explanation:

it says that 1.2 with the mark percent representing the function percent it is also increasing

Therefore, it's a

Glad I can help tell me if you need anything else!

Answer:

A = 900in²

Perimeter   120in

Using the formulas

A = a²

P = 4a

Step-by-step explanation:

Solving for A:

A = 1/16 P² = 1/16 · 120² = 900in²

Answer:

900in^2

Step-by-step explanation:

120 divided by 4 because there are 4 sides

120÷4=30

Area= 30x30

       = 900in^2

Answer:

x = 3 and y = 8

Step-by-step explanation:

The Opposite sides of a parallelogram are equal and parallel. It means,

[tex]\dfrac{y}{2}=4\\\\y=8[/tex]

Also,

5x - 6 = 3x

Taking like terms together,

5x -3x = 6

2x = 6

x = 3

So, the values of x and y are 3 and 8 respectively.