1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Leno4ka [110]
3 years ago
7

The length of a rectangle is 3cm longer than its width.

Mathematics
1 answer:
Contact [7]3 years ago
8 0

Answer:

width=8cm

lenth=11

Step-by-step explanation:

You might be interested in
What is the equation of the line that passes through the points (5, 3) and (-3,-1)?
Liono4ka [1.6K]

Answer:

y=1/2x+1/2

m=1/2

Step-by-step explanation:

You want to find the equation for a line that passes through the two points:

(5,3) and (-3,-1).

First of all, remember what the equation of a line is:

y = mx+b

Where:

m is the slope, and

b is the y-intercept

First, let's find what m is, the slope of the line...

The slope of a line is a measure of how fast the line "goes up" or "goes down". A large slope means the line goes up or down really fast (a very steep line). Small slopes means the line isn't very steep. A slope of zero means the line has no steepness at all; it is perfectly horizontal.

For lines like these, the slope is always defined as "the change in y over the change in x" or, in equation form:

So what we need now are the two points you gave that the line passes through. Let's call the first point you gave, (5,3), point #1, so the x and y numbers given will be called x1 and y1. Or, x1=5 and y1=3.

Also, let's call the second point you gave, (-3,-1), point #2, so the x and y numbers here will be called x2 and y2. Or, x2=-3 and y2=-1.

Now, just plug the numbers into the formula for m above, like this:

m=

-1 - 3 over

-3 - 5

or...

m=

-4 over

-8

or...

m=1/2

So, we have the first piece to finding the equation of this line, and we can fill it into y=mx+b like this:

y=1/2x+b

Now, what about b, the y-intercept?

To find b, think about what your (x,y) points mean:

(5,3). When x of the line is 5, y of the line must be 3.

(-3,-1). When x of the line is -3, y of the line must be -1.

Because you said the line passes through each one of these two points, right?

Now, look at our line's equation so far: y=1/2x+b. b is what we want, the 1/2 is already set and x and y are just two "free variables" sitting there. We can plug anything we want in for x and y here, but we want the equation for the line that specfically passes through the two points (5,3) and (-3,-1).

So, why not plug in for x and y from one of our (x,y) points that we know the line passes through? This will allow us to solve for b for the particular line that passes through the two points you gave!.

You can use either (x,y) point you want..the answer will be the same:

(5,3). y=mx+b or 3=1/2 × 5+b, or solving for b: b=3-(1/2)(5). b=1/2.

(-3,-1). y=mx+b or -1=1/2 × -3+b, or solving for b: b=-1-(1/2)(-3). b=1/2.

See! In both cases we got the same value for b. And this completes our problem.

The equation of the line that passes through the points

(5,3) and (-3,-1)

is

y=1/2x+1/2

7 0
3 years ago
Which of the following statements must be true if AGHI AJKL? Select all the apply.
bixtya [17]

Answer:hellos 6

Step-by-step explanation:

Isthsjsh

5 0
2 years ago
Factor and show all work. 15^2y^2-x^3y+7
Ber [7]
<span><span><span><span>(<span>15^2</span>)</span><span>(<span>y^2</span>)</span></span>−<span>x^3</span></span>+7</span><span>=<span><span><span><span>225<span>y^2</span></span>+</span>−<span>x^3</span></span>+7</span></span>
<span>=<span><span><span>−<span>x^3</span></span>+<span>225<span>y^2</span></span></span>+<span>7</span></span></span>
4 0
3 years ago
Hello :D can u pls help me im having trouble on this question and need some help so pls help
Airida [17]

Answer:

it is 140ft perimeter is adding all four sides together

3 0
2 years ago
Read 2 more answers
A pitcher of water contains 1/4 liters of water. The water is poured equally into 5 glasses. How many liters of water are in eac
Alisiya [41]
We know that

<span>A pitcher of water contains 1/4 liters of water--------------> 0.25 lt
then
0.25 lt/5--------> 0.05 lt

In each glass are 0.05 lt of water
1 lt-------------> 1000 ml
0.05 lt----------> X
X=0.05*1000--------> X=50 ml

the answer is
</span>In each glass are 0.05 lt of water
In each glass are 50 ml of water<span>

</span>
7 0
3 years ago
Other questions:
  • Which of the following are true of F(x)?
    15·2 answers
  • The vertices of a rectangle are given in the columns of the matrix (picture 1).
    15·1 answer
  • What happens to the coordinates of a shape when the shape reflects about the line y=x?
    13·2 answers
  • What is the answer for 2b+5=15.
    10·2 answers
  • Help Please! Answer ASAP!
    8·2 answers
  • Plzzzzzz hellllllllllllpppppppppppp
    5·1 answer
  • NEED HELP ASAP‼️‼️‼️‼️‼️‼️‼️‼️<br><br> What is the slope between the points (1.7) and (3.10)?
    6·1 answer
  • PLZZZZ HELP MEEE
    13·1 answer
  • Katie runs 5 laps arround the park in 8 minutes.if Kate runs 24 laps at the same rate,how long will it take her?
    13·2 answers
  • (
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!