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defon
3 years ago
5

A) Express Z in terms of X and Yb) solve the equation​

Mathematics
1 answer:
Art [367]3 years ago
7 0

Answer:

1.–2

2.–52.5

Step-by-step explanation:

I'm not sure

in that's wrong answer?

:))

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Answer:

y - 1 = 2(x - 3)

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

m is the slope and (a, b ) a point on the line

Here m = 2 and (a, b ) = (3, 1 ) , then

y - 1 = 2(x - 3)

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3 years ago
7 4/7 2 =49. Why does (=) make it true?
valina [46]

Answer:

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8 0
3 years ago
Read 2 more answers
a survey asked 50 students if they play an instrument and if they are in band. 25 students play an instrument 20 are in a band a
frutty [35]
I would go with d .... If not it would be c...


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5 0
4 years ago
Read 2 more answers
Using elimination method
bogdanovich [222]

Answer:

The value of x is 2 and y is (-5)

Step-by-step explanation:

<h3><u>Given</u>;</h3>
  • -7x + y = – 19
  • -2x + 3y = – 19
<h3><u>To </u><u>Find</u>;</h3>
  • The value of x and y
<h3><u>B</u>y<u> </u><u>Usin</u>g<u> </u><u>Elimination</u><u> </u><u>Method</u>;</h3>

First name the equation

  • -7x + y = – 19 ...(1)
  • -2x + 3y = – 19 ...(2)

Now, Multiply equation (1) by 3 we get,

3 × (-7x + y = – 19)

-21x + 3y = – 57

Now, Eliminate

-21x + 3y = – 57

-2x + 3y = – 19

<u>+</u><u> </u><u> </u><u> </u><u> </u><u>–</u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u>+</u><u> </u><u> </u><u> </u><u> </u>

-19x = -38

x = -38/-19

x = 2

Now, Put the value of x in equation (2) we get the value of y.

-7x + y = – 19

-7(2) + y = – 19

-14 + y = -19

-14 + 14 + y = -19 + 14

y = -5

Thus, The value of x is (-5) and the value of y is 2.

<h3><u>For </u><u>Verification</u>;</h3>

-7x + y = – 19

-7(2) + (-5) = – 19

-14 – 5 = – 19

-19 = -19

-2x + 3y = – 19

-2(2) + 3(-5) = – 19

-4 – 15 = – 19

-19 = -19

Here, L.H.S = R.H.S

Hence Verified!

<u>-TheUnknownScientist 72</u>

4 0
2 years ago
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