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3 years ago

A line contains points M(1,3) and N(5,0). What is the slope of MN

Mathematics

1 answer:

mamaluj [8]3 years ago

6 0

Answer:

-3/4, I believe

Step-by-step explanation:

m= y2-y1/x2-x1

m=0-3/5-1

m=-3/4

**please don't use this answer if you see something wrong with the explanation**

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X^2+2x+1 is a perfect square trinomial True of False?

Nimfa-mama [501]

Answer:

True.

Step-by-step explanation:

It is because it is in the form $a^2x^2+2abx+b^2$ and this equals $(ax+b)^2$ .

Why it is in that form: well comparing $a^2x^2+2abx+b^2$ , we have $a=1, b=1$ . Testing, plug in those values:

$(1)^2x^2+2(1)(1)x+(1)^2$

$1x^2+2x+1$

$x^2+2x+1$ .

This has the squared form of $(x+1)^2$ .

Test if you like:

$(x+1)^2$

$(x+1)(x+1)$

Use foil to expand:

First: x(x)=x^2

Outer: x(1)=x

Inner: 1(x)=x

Last: 1(1)=1

---------------Add together

$x^2+2x+1$

It does indeed equal.

4 0

3 years ago

Which statement correctly compares the mean number of students for the data in the plots?

satela [25.4K]

Answer:

"There are about 2 more students in each class at Oak Middle School than at Poplar Middle School."

Step-by-step explanation:

We need to compute the mean for each.

Poplar Middle School:

Lets list the numbers

20,20,20,21,21,21,21,21,22,22,22,22,22,22,22,23,23,23,23,24

The average is sum of all divided by number of numbers, that will be:

435/20 = 21.75

Oak Middle School:

The numbers are:

20,21,21,22,22,23,23,23,23,24,24,24,25,25,26,26,27,27,28,29

The average is sum divided by number of numbers, that will be:

483/20 = 24.15

The difference in mean is:

24.15 - 21.75 = 2.4

We can say, that is about 2 more students in Oak Middle School, correct answer choice is "2nd answer choice" - "There are about 2 more students in each class at Oak Middle School than at Poplar Middle School."

7 0

3 years ago

What equation is graphed in this figure?

bixtya [17]

The answer is C

Here is the process, hope it helps!
y+2=-3/2(x-2)
y+2=-3/2x+3
y=-3/2x+1

4 0

3 years ago

What is the volume of a prism that is 11×13×21?

posledela

Answer:

3003 units^3.

Step-by-step explanation:

Just multiply the dimensions :

11 * 13 * 21

= 143 * 21

= 3003 units^3.

8 0

3 years ago

2x+6y=-24 converted into a slope intercept?

Svetllana [295]

Answer:

y=1/3x+4

Step-by-step explanation:

6 0

3 years ago

A line contains points M(1,3) and N(5,0). What is the slope of MN​

A line contains points M(1,3) and N(5,0). What is the slope of MN