Solve the system of equations by using the substitution method.
2x - 3y = 11
y=x-4

=================================================

Explanation:

The probability of getting all heads is (1/2)*(1/2)*(1/2) = 1/8

The probability of getting all tails is 1/8 for identical steps as above.

The probability of getting all to land on the same side is 2*(1/8) = 1/4

Answer:

0

Step-by-step explanation:

I tried solving it

x^2+8x+20=0

1x^2+8x+20=0

I used the quadratic formula, I can't type it here but trust me!

Answer:

there are 0 real solutions so the answer is number 1

Step-by-step explanation:

Answer:

D: 48

Step-by-step explanation:

Daily cost of production; c(x) = 200 + 16x

when the number of complete products manufactured is 5, the cost is:

c(5) = 200 + 16(5)

      = 200 + 80

      = 280

c(5) = 280

When the number of complete products manufactured is 8, the cost is:

c(8) = 200 + 16(8)

      = 200 + 128

      = 128

c(8) = 328

Average rate of change = c(8) - c(5)

                                        = 328 - 280

                                        = 48

Thus, the average rate of change is 48.

Answer:

[tex]f(n) = f(n-1) + 8[/tex] for [tex]n > 1[/tex]

Step-by-step explanation:

Given

[tex]f(1) = 3[/tex] -- First Term

[tex]\frac{1}{2}d = 4[/tex] --- half common difference

Required

Find the recursive rule

First, we calculate the common difference

[tex]\frac{1}{2}d = 4[/tex]

Multiply through by 2

[tex]2 * \frac{1}{2}d = 2 * 4[/tex]

[tex]d = 8[/tex]

The second term of the sequence is:

[tex]f(2) = 3 + 8 = 11[/tex]

The third term is:

[tex]f(3) = 11 + 8 = 20[/tex]

So, we have:

[tex]f(1) = 3[/tex]

[tex]f(2) = 3 + 8[/tex]

Substitute f(1) for 3

[tex]f(2) = f(1) + 8[/tex]

Express 1 as 2 - 1

[tex]f(2) = f(2-1) + 8[/tex]

Substitute n for 2

[tex]f(n) = f(n-1) + 8[/tex]

Similarly:

[tex]f(3) = 11 + 8[/tex]

Substitute f(2) for 11

[tex]f(3) = f(2) + 8[/tex]

Express 2 as 3 - 1

[tex]f(3) = f(3-1) + 8[/tex]

Substitute n for 3

[tex]f(n) = f(n-1) + 8[/tex]

Hence, the recursive is:

[tex]f(n) = f(n-1) + 8[/tex] for [tex]n > 1[/tex]

Answer:

a=$12

b=$12

c=$13

d=$12

Answer:

3.62

Step-by-step explanation:

AC=[tex]\sqrt{(CD)(BC)}[/tex]

AC= [tex]\sqrt{2.3 * 5.7}[/tex]

AC = [tex]\sqrt{13.11}[/tex]

AC= 3.62

Answer:

[tex]sss[/tex]

Step-by-step explanation:

Because

AB = ED ( Side)

BC = EF ( Side )

AC = DF ( Side )

So,

ABC Triangle is congruent to EDF triangle ( SSS)

Please...Can I have the brainliest?

Answer:

180 kg

Step-by-step explanation:

The ratio is

cement : sand : gravel

    1       :    3     :    4

If he used 1 kg cement, 3 kg sand, and 4 kg gravel, he'd get 8 kg of concrete.

He wants to make 480 kg of concrete.

480/8 = 60

He needs 60 times more concrete than the numbers in the ratio.

60 * 3 kg = 180 kg

Answer: 180 kg

Answer:

If sand is 3 in the ratio, it is 180kg

Step-by-step explanation:

480/8=60  60 times 3 is 180

2 & 7

because 2 x 7 = 14

sorry if this wasnt what you were looking for, have a nice day :)

The slope of the line is m = 5/2

The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept

And y - y₁ = m ( x - x₁ )

y = y-coordinate of second point

y₁ = y-coordinate of point one

m = slope

x = x-coordinate of second point

x₁ = x-coordinate of point one

The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )

Given data ,

Let the equation of line be represented as A

Now , the value of A is

Let the first point be P ( 2 , 4 )

Let the second point be Q ( 0 , -1 )

Now , the slope of the line is m = ( y₂ - y₁ ) / ( x₂ - x₁ )

Substituting the values in the equation , we get

Slope m = ( 4 - ( -1  ) ) / 2

m = ( 4 + 1 ) / 2

m = 5/2

Hence , the slope is m = 5/2

To learn more about equation of line click :

https://brainly.com/question/14200719

#SPJ7

Answer:

-2/3

Step-by-step explanation:

Answer:

-2/3

Step-by-step explanation:

Answer:

the slope is 3 because y=mx+b where m= slope and b= y-intercept

Step-by-step explanation:

Answer:

Wait hold on! can I join the google meet!? :O

Answer:

trend line or line of best fit is best described as a line that approximates the relationship between the sets of data of a scatter plot.

hope this helps and i didn't read it wrong

Step-by-step explanation:

why are you still doing school tho

Answer: y= x + 4

Step-by-step explanation:

The equation would have its y intercept at 4 and it’s x intercept at -4

Answer:

12 andy 9

Step-by-step explanation:

Answer:

m = -3.6 / -9.5 = 0.37895

Step-by-step explanation:

Answer:

91.80

Step-by-step explanation:

the answer is 91.80

Answer:

Following are the solution to this question:

Step-by-step explanation:

The experiment of three possible results has been performed through Gerald. This statement better applies to the data point to obtain results comparable to the findings expected.

The amount of potential scenarios predicted from the above claim is three (smaller than) twenty potential scenarios, as indicated in the 2nd statement. Throughout the case with good predictive claims, the 1st claim sounds very good.

B, Gerald will need to conduct fewer trials than Kasey because there are fewer possible outcomes in his experiment.

This is probably too late to help you but maybe it'll help someone else.

Hi there!

[tex]\large\boxed{f^{-1}(x) = \sqrt[3]{\frac{x+4}{9} } }[/tex]

[tex]f(x) = 9x^{3} - 4[/tex]

Find the inverse by replacing f(x) with y and swapping the x and y variables:

[tex]x = 9y^{3} - 4[/tex]

Isolate y by adding 4 to both sides:

[tex]x + 4 = 9y^{3}[/tex]

Divide both sides by 9:

[tex]\frac{x+4}{9}= y^{3}[/tex]

Take the cube root of both sides:

[tex]y = \sqrt[3]{\frac{x+4}{9} }\\\\f^{-1}(x) = \sqrt[3]{\frac{x+4}{9} }[/tex]

Answer:

BC is the length of ad

Step-by-step explanation:

The quadrilateral ABCD is a Parallelogram BC is 8 units in length.

A simple quadrilateral with two sets of parallel sides is known as a parallelogram. In a parallelogram, the opposing or facing sides are of equal length, and the opposing angles are of equal size.

The following information is missing in the question:

AB= 4x

CD= 2y

AD= y + 4

BC= 2y

Given that ABCD is a parallelogram, then the opposite sides are congruent. That means:

AB = CD -> 4x = 2y      (eq. 1)

BC = AD -> 2y = y + 4  (eq. 2)

Solving equation 2:

2y = y + 4  

2y - y = 4  

y = 4

Solving equation 1:

4x = 2*4

x = 8/4

x = 2

This means that:-

BC = 2 x 4 = 8 units length

CD = 2 x 4 = 8 units length

AB= 4 x 2 =  8 units length

AD= 4 + 4  = 8 units length

Hence, the quadrilateral ABCD is a Parallelogram BC is 8 units in length.

To know more about parallelograms follow

https://brainly.com/question/14258175

#SPJ6

Given:

Quadratic function is

[tex]f(x)=x^2-6x+c[/tex]

It passes through B(-2,4).

To find:

The value of c.

Solution:

The quadratic function passes through B(-2,4), it means the equation of quadratic equation must be true for the point B(-2,4).

We have,

[tex]f(x)=x^2-6x+c[/tex]

Putting x=-2 and f(x)=4, we get

[tex]4=(-2)^2-6(-2)+c[/tex]

[tex]4=4+12+c[/tex]

[tex]4=16+c[/tex]

Subtract both sides by -16.

[tex]4-16=c[/tex]

[tex]-12=c[/tex]

The value of c is -12.

Therefore, the correct option is A.