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3 years ago

What is the slope of the line? help

Mathematics

2 answers:

Oksana_A [137]3 years ago

5 0

Use the red dots as two points in the line.

Slope = change in y over the change in x.

point 1: (-5,4)

Point 2: (5,-2)

Slope = (-2 - 4) / ( 5 - -5)

Slope = -2/10

Slope = -1/5

denis23 [38]3 years ago

4 0

Answer:

3/-5

Step-by-step explanation:

The formula for the slope of a line is rise over run, rise/run

So from any given two points, you can calculate this.

rise is 3

run is 5, but it would be negative 5 because the slope of the line is negative.

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3/7 x 28/9 x 15/17 ... how do I use cancellation? my answer was 15/17 but thats not the right answer, can someone explain this a

Ne4ueva [31]

First you cancel 7 and 28, and 3 and 9, so that leaves you with 4/3 x 15/17, then you cancel 3 and 15 so you get 4x5/17 which should give you 20/17!

4 0

3 years ago

Plz help me with this question

Montano1993 [528]

Answer:

Step-by-step explanation:

Remark

There are probably a couple of ways that you could do this. I'm going to pick the most obvious way.

Givens.

KN = 2.5

NO = 10

LM = 3

MP = x

Equation

NO/KN = PM / LM

Solution

10 / 2.5 = x / 3 Cross multiply

2.5x = 10 * 3 Combine

2.5x = 30 Divide by 2.5

x = 30/2.5

x = 12

That looks like it should be the answer, and it almost is, but you are asked for LP.

LP = LM + MP

LP = 3 + 12

LP = 15

The answer is 15

7 0

3 years ago

-21 = 7(3 - x)<br><br> Please help. You have to use distributive property to solve.

OlgaM077 [116]

The answer is 6

hope this helps !!

4 0

3 years ago

Read 2 more answers

Select the correct answer.

viva [34]

Answer:

As the given equation represents a quadratic function.

Thus, $y\:=\:x^2-9x$ represents a function.

As we know that the function is just a relation in which each input has only one output.

Thus, $y\:=\:x^2-9x$ represents a relation and function.

Step-by-step explanation:

Given the equation

$y\:=\:x^2-9x$

As the given equation represents a quadratic function.

Thus, $y\:=\:x^2-9x$ represents a function.

As we know that the function is just a relation in which each input has only one output.

Thus, $y\:=\:x^2-9x$ represents a relation and function.

We know that the domain of a function is the set of input or argument values for which the function is real and defined.

$\mathrm{Domain\:of\:}\:x^2-9x\::\quad \begin{bmatrix}\mathrm{Solution:}\:&\:-\infty \:$

We also know that the range of a function is the set of values of the dependent variable for which a function is defined.

$\mathrm{Range\:of\:}x^2-9x:\quad \begin{bmatrix}\mathrm{Solution:}\:&\:f\left(x\right)\ge \:-\frac{81}{4}\:\\ \:\mathrm{Interval\:Notation:}&\:[-\frac{81}{4},\:\infty \:)\end{bmatrix}$

The graph is also attached below. From the graph, it is clear that it represents a Parabola.

6 0

3 years ago

the mean monthly income of trainees at a local mill is 1100 with a standard deviation of 150. find rthe probability that a train

Lunna [17]

Answer:

The probability is $P(X < 900 ) = 0.0918$

Step-by-step explanation:

From the question we are told that

The sample mean is $\= x = 1100$

The standard deviation is $\sigma = 150$

The random number value is x =900

The probability that a trainee earn less than 900 a month is mathematically represented as

$P(X < x) = P(\frac{X -\= x}{\sigma} < \frac{x -\= x}{\sigma} )$

Generally the z-value for the normal distribution is mathematically represented as

$z = \frac{x -\mu }{\sigma }$

So From above we have

$P(X < 900 ) = P(Z < \frac{900 -1100}{150} )$

$P(X < 900 ) = P( Z$

Now from the z-table

$P(X < 900 ) = 0.0918$

6 0

3 years ago