All categories

3 years ago

Which expression can be used to find the slope of a line containing the points (-3,2) and (7,-1)

Mathematics

2 answers:

Ket [755]3 years ago

4 0

The right expression is -1-2/7-(-3) which then gives you -3/10

Sveta_85 [38]3 years ago

4 0

Answer: $\dfrac{-1-2}{7-(-3)}$

Step-by-step explanation:

The slope of a line passing from (a,b) and (c,d) is given by :-

$\text{slope}=\dfrac{d-b}{c-a}$

Given points of a line : (-3,2) and (7,-1)

Substitute a=-3, b=2, c=7, d=-1 in the above formula of slope we get,

The slope of a line containing the points (-3,2) and (7,-1) will be :-

$\text{slope}=\dfrac{-1-2}{7-(-3)}$

You might be interested in

A. In the Example, what is 3/4 / 1/3 the unit rate for?

hoa [83]

Answer:

the unit rate for it would be 1/4

6 0

1 year ago

A car of 1000 kg starts to move from rest and travels a distance of 150 m in 10 second. How much force is needed?

allsm [11]

Initial velocity=u=0m/s
Distance=s=150m
Time=t=10s
Acceleration=a

Using second equation of kinematics

$\\ \sf\longmapsto s=ut+\dfrac{1}{2}at^2$

$\\ \sf\longmapsto 150=0(10)+\dfrac{1}{2}a(10)^2$

$\\ \sf\longmapsto 150=\dfrac{1}{2}\times 100a$

$\\ \sf\longmapsto 50a=150$

$\\ \sf\longmapsto a=\dfrac{150}{50}$

$\\ \sf\longmapsto a=3m/s^2$

Mass=m=1000kg
Force=F

Using newtons second law

$\\ \sf\longmapsto F=ma$

$\\ \sf\longmapsto F=1000(3)$

$\\ \sf\longmapsto F=3000N$

3 0

3 years ago

What is the greatest common factor of 24, 40 and 32? A. 1 B. 2 C. 4 D. 8

trasher [3.6K]

It’s 8 because 24/8 is 3 and 40/8 is 5 and 32/8 is 4 so the answer is 8 YOUR WELCOME

6 0

3 years ago

Read 2 more answers

Suppose A and B represent two different school populations where A > B and A and B must be greater than 0. Which of the follo

Ulleksa [173]

We can reject the last one: subtracting a non-zero value will result in a smaller value.

So now we have:

2(A + B)
(A + B)2
A2 + B2

If all of them are mulptiplications, then they are all equivalent!

I mean by this, if what you meant is this:


2*(A + B)
(A + B)*2
A*2 + B*2

If there is no sign, then the multiplication sign is implicit,

and all of these expressions say exactly the same: two of A and two of B.

6 0

3 years ago

What is the simplified polynomial and the value

Elanso [62]

The simplified polynomial is; xy(x²y - xy² +1) and; the value when x=-3 and y=2 is; -186

From the polynomial given;

x²yxy -xy²xy +xy.

The polynomial can be factorised to yield a simpler form as follows;

xy(x²y - xy² +1).

This is so because, xy is a common factor.

The value is therefore;

(-3×2)((-3)²2 - (-3×2²) +1)

-6(18+12+1)

= -186