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dedylja [7]
3 years ago
5

If XZ= 50, what are XY and YZ ? Exolain how to show work and how you got your answer.

Mathematics
1 answer:
zlopas [31]3 years ago
4 0
It's not clear where point Y is located. If Y is the midpoint, and Y is on line XZ, then we can say that XY = 25 and YZ = 25 (since Y cuts XZ in half; the two equal portions are XY and YZ)

I'm using the segment addition postulate XY+YZ = XZ

However, all of this is based on the assumption that Y is the midpoint and on line XZ. 
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I HAVE A MATH TEST PLZ HELP I'M GIVING OUT 50 POINTS PLZ<br><br> S.O.S I HAVE MATH
Nady [450]

Answer:

<em>Graph included as picture</em>

Step-by-step explanation:

To solve this, plot the given points on the graph

Draw a line through them.

Now select two of those values and we'll find the rate of change.

We'll be using (1,-1) and (3,3)

To find rate of change we will be using the formula: \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

y_{2} = 3\\y_{1} =-1\\x_{2} = 3\\x_{1} = 1

\frac{3-(-1)}{3-1} = \frac{4}{2} = 2

So the rate of change is 2

You will use this rate of change for your other function because they both have the same rate of change

Since we have the rate of change, we can create the slope intercept form formula: y = mx +b

Just substitute for the variables we know

m = rate of change/slope = 2

b = y-intercept = -3

y = 2x + -3

<em>[If you connected all the points in your graph, that's how you found the y-intercept]</em>

Now we have to create the formula for the second function.

We know it will have that same slope of 2

so we have y = 2x + b

To solve for b we can plug in the values we do have which would be (x,y) of (3,6)

6 = 2(3) + b

Now solve

6 = 6 + b

6 (-6) = 6 (-6) + b

0 = b

b = 0

This mean that the y-intercept will be on (0,0)

Plot that point

Now we finish the formula

y = 2x + 0

Connect the dots, make sure the line continues on both of them past the dots and now you have your graph!

I've included a picture of the graph for your reference. I hope this helps, don't be afraid to reach out with further questions!

4 0
2 years ago
What is the value of x
Gemiola [76]
For this case, we observe that the triangles are similar.
 We observe that the triagnules have three equal angles.
 Therefore, to find the value of x we can use the following relationship:
 x / 15 = 5/12&#10;
 Clearing x we have:
 x = (5/12) * (15)&#10;&#10;x = 6.25
 Answer:
 
The value of x is given by:
 
x = 6.25
4 0
3 years ago
Please help me on 4​ I'm having trouble
aalyn [17]

Answer:

y-int = +5

Step-by-step explanation:

Sum and Diff is just saying add up all like terms then plug in 0 into the x terms to get y. It's actually a lot easier than you think.

8 0
3 years ago
Read 2 more answers
Help please please please​
LekaFEV [45]

Answer:

There are 9 quarters and 3 nickels

Step-by-step explanation:

problems used: 0.5x+0.25y=3.09

x=y+6

so substitute what x is equal to into the problem

0.5(y+6)+0.25y=3.09  <--------- distribute

0.5y+3+0.25y=3.09     <--------- Combine like terms

0.3y+3=3.09 <----------- Subtract 3 on both sided to get y by itself

0.3y=0.9 <------------ Divide by 0.3 on both sides to get what y is equal to

y=3 <-------- now substitute to find what x is equal to

x=3+6

x=9

8 0
3 years ago
Read 2 more answers
0.0058 expressed as a percentage is
ipn [44]
0.0058 is 0.58% (I think so)
6 0
3 years ago
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