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vredina [299]
4 years ago
7

(pleaseeee please help me D: I've been trying to figure this out all day)

Mathematics
1 answer:
Ratling [72]4 years ago
5 0

OK.  Relax, settle down, don't worry.

We're in luck here.  The shape hasn't been rotated, or swelled up
or shrunk.  It's still exactly the same size and shape, and in the same
position.  It's only been moved, from here to there.  All you really
have to do is look at one point, and figure out how that point moved,
and all the other points moved exactly the same ... same distance,
in the same direction.

When I looked at this, I worked with point-D.  But now I think
point-B may be a little easier to work with.

-- What's the 'x'-value (left/right) of point-B before it moves ?
    It's right on the y-axis, so its x-value is zero.

-- What's the 'x' value of point-B', after the move ?
    Look at the light light line that B' is on, follow it down,
    and you see that the x-value of point-B' is  6 .

-- The x-value of point-B moved from  x=0  to  x=6.
    If you look at just the x-value of any other point on the shape,
    you'll see that every point moved 6 units to the right.
    Every 'x'-value became 6 units bigger after the move.
       x --> x+6

===================
 
-- What's the 'y'-value (up/down) of point-B before it moves ?
    It's in the middle between the 2 and the 4, so its y-value is 3.

-- What's the 'y' value of point-B', after the move ?
    Look at the light light line that B' is sitting on, follow it left,
    and you see that the y-value of point-B' is  8 .

-- The y-value of point-B moved from  y=3  to  y=8.
    If you look at just the y-value of any other point on the shape,
    you'll see that every point moved 5 units UP.
    Every 'y'-value became 5 units bigger after the move.
       y --> y+5

Look for a choice that says what we found.
The second choice says it.
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HELP PLZ.....I NEED THIS....One wheel of a bicycle has 24-inch diameter. About how many feet will the bicycle travel when the wh
Ne4ueva [31]
First, find the circumference of the wheel using C=2 \pi r

You know that your diameter is 24. To find the radius, divide the diameter by 2, which is 12.

Input 12 as r and simplify. ->  C=2 \pi (12)
C=24 \pi

estimate your Pi as 3.14
C=24(3.14)

and multiply. C=75.36

Now you know the distance of one full revolution in inches. To find 200 revolutions, multiply that answer by 200.

75.36 * 200 = 15,072 inches

But because this is in inches, you have to find the answer in feet, so just divide that answer by 12.

15,072 / 12 = 1,256 ft
7 0
3 years ago
One of the tables shows a proportional relationship.
beks73 [17]

Answer:

See attached

Step-by-step explanation:

The graph of a <u>proportional linear relationship</u> is a line that <u>passes through the origin</u> (0, 0).

From inspection of the given tables, the <u>linear equations</u> for each table of points is:

  • Table 1:  y = x + 1
  • Table 2:  y = x/2
  • Table 3:  y = x + 2
  • Table 4:  y = 2x + 1

The only equation for which y = 0 when x = 0 is y = x/2  →  Table 2.

Given points from Table 2:

  • (2, 1)
  • (4, 2)
  • (6, 3)
  • (8, 4)

To <u>graph the line</u>, plot the given points and draw a line through them (see attached).

5 0
2 years ago
X+y=3<br> y+x= 5<br><br> help please
Oksana_A [137]
Solve by elimination ie eliminate x or y from the equations by performing operations on them.
first label the equations , to follow the process.
x - y = 5 ----------------(1)
x+ y = 3 ----------------(2)
If (1) and (2) are added then y will be eliminated.
(1) + (2) gives : 2x = 8 → x = 4
now substitute this value of x into either of the 2 equations and solve for y.
let x = 4 in (1) : 4 - y = 5 → -y = 1 → y = -1
check in (1) : 4-(-1) = 4+1 = 5
check in(2) : 4 - 1 = 3


So your answer is x = 4 , y = -1
8 0
3 years ago
A battery is 10% charged and is charging at a constant rate. The graph shows the battery’s charge over time. What is the slope o
Y_Kistochka [10]

Answer:

The slope of the line is 3/4

Step-by-step explanation:

There is a difference of 3 in the y coordinate and 4 for the x coordinate from each exact point.

8 0
4 years ago
Please help!! It’s for chemistry
sergey [27]
I can help, which question do you need help in?
4 0
4 years ago
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