MATHEMATICS HIGH SCHOOL

What is the slope of the line?

A. 2/5
B. -2/5
C. 5/2
D. -5/2
What is the slope of the line? A. 2/5 B. - 1

Answers

Answer 1
Answer:

Answer:

  B.  -2/5

Step-by-step explanation:

For a "run" (x change) of 5, the "rise" (y change) is -2 units. Then the slope is ...

  slope = rise/run = -2/5
Answer 2
Answer:

Answer:

 B.  -2/5

Step-by-step explanation:

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Please someone answer this question as quick as possible please

Which is the equation of a line with the slope of -2 that passes through the point (-2,0)

Answers

y = -2x - 4

-2x is the slope and -4 is the y intercept.
The equation of a line is y = mx + b (m is the slope; b is the y-intercept)

We are given the slope of -2 so...

y = -2x + b

We must determine b. Since they give us a point, we can sub in the x and y coords (-2,0)

0 = -2(-2) + b
0 = 2 + b
[Subtract 2 from both sides]
0-2=2-2+b
-2=b

Now, go back to the original equation (before adding coordinates in) and input b.

y = -2x-2

Two variables are correlated with r=0.96 which answer best describes the strength and direction of the association between the variables? A- Strong positive B- Strong negative C- Weak negative D- weak positive

Answers

The description that best describes the strength and direction of the association between the variables is A. Strong positive.

What is a correlation?

A correlation is defined as a causative association between two or more variable, which can be used to make predictions about a given outcome.

The degree and direction of the link between the variables are best described by a strong positive correlation. R = 0.96 indicates that the independent variable raise the dependent variable by 0.96. R correlation ranges from 0 to 1, with 0 indicating the weakest connection and 1 indicating the strongest correlation.

As a result, 0.96 is a strong correlation. The correlation coefficient's minus and positive values indicate the direction of the relationship between the variables.

Read more about correlation at:

brainly.com/question/36761554

8+4i
———
2i

please show work!!

Answers

Please brainliest this what Siri said

How are parallelogram related to triangles and rectangles

Answers

Parallelograms are related to trailed because you can divide the parallelogram into triangles by adding diagonals lines in it.

They are related to rectangles because the parallelogram is just tilted a little

What is the x-coordinate of the point in the standard (x,y) coordinate plane at which the 2 lines y = 2x + 6 and y = 3x + 4 intersect?Can you please explain with some details?

Answers

Answer:

The x-coordinate of the point in the standard (x,y) coordinate plane at which the 2 lines y = 2x + 6 and y = 3x + 4 intersect is:

                            x=2

Step-by-step explanation:

The point of intersection of the two lines is the point where the y-value of the two lines are equal.

Now, in order to find the x-coordinate of the point of intersection we equate the equation of two lines in terms of x and by some operation we obtain the value of x.

Here the equation of two lines are:

y = 2x + 6 and y = 3x + 4

Now, on equating the y-value we have:

  2x+6=3x+4

Now,

3x-2x=6-4

i.e.

x=2

Also, on putting the value of x in any of the two equation of lines we have:

y=10

Hence, the point of intersection is: (2,10)
You have to solve equation system:
\left \{ {{y=2x+6}|*(-1) \atop {y=3x+4}} \right. \n \left \{ {{-y=-2x-6} \atop {y=3x+4}} \right. \n 0=x-2\n x=2

Or you can also graph it. Look at enclose.
To graph it you have to draw two lines choosing two points for each one.
For example:
y=2x+6
so if x=0 y = 6
if x = 1 y = 8
You connect this points and you have y=2x+6 line. You do this the same with the second line. 

The tuition costs, C, for a local community college are modeled by C(h) = 250 + 200h, where h represents the number of credit hours taken. The local state university has tuition costs, S, modeled by the function S(h) = 300 + 180h. How many credit hours will a student have to take for the two tuition costs to be equal? Round the answer to the nearest tenth of an hour. 250 + 200h = 300 + 180h 250 + 200h = 300 + 180h − 180h − 180h 250 + 20h = 300 h = credit hours

Answers

To solve how many credit hours will a student have to take for the two tuition costs to be equal, the two functions should be equated and solve for the number of hours
  C (h) = S (h)
250 + 200h = 300 + 180h
200h – 180h = 300 – 250
20h = 50
H = 2.5 credit hours

The required equation is: \mathbf{150 + 200h = 300 + 180h} and the number of credit hours is 7.5

The functions are given as:

\mathbf{C(h) = 250 + 200h}

\mathbf{S(h) = 300 + 180h}

When the two tuition costs are equal, we have:

\mathbf{C(h) = S(h)}

This gives

\mathbf{150 + 200h = 300 + 180h}

Collect like terms

\mathbf{ 200h -180h= 300 -150 }

\mathbf{ 20h= 150 }

Divide both sides by 20

\mathbf{ h= 7.5 }

Hence, the required equation is: \mathbf{150 + 200h = 300 + 180h} and the number of credit hours is 7.5

Read more about functions at:

brainly.com/question/3468890
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