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just olya [345]
3 years ago
14

What system shows the correct numbers to multiply by the coefficients in order to eliminate y from the first two

Mathematics
1 answer:
Ann [662]3 years ago
3 0

Answer:

3 (5x+2y = 0)

2 (2x – 3y = -19)

Step-by-step explanation:

5x+2y=0 (1)

2x-3y=-19 (2)

To eliminate y from the first two equation when applying the linear combination method

We will multiply y Equation (1) and (2) with 3 and 2 respectively so that the coefficients of y in the two equations +6 and -6 respectively

3(5x+2y=0)

2(2x-3y=-19)

We have,

15x+6y=0 (3)

4x-6y= -38 (4)

Add Equation (3) and (4)

19x=-38

x= -2

Substitute x= -2 into (1)

5x+2y=0

5(-2)+2y=0

-10+2y=0

-10= -2y

y=-10/-2

=5

y=5, x=-2

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I’m so sorry I need points but I’m gonna manifest that someone smarter will see this and answer
7 0
3 years ago
If anyone could help out with this one i would really appreciate it <br><br> f(2)=?
algol13

Answer:

f(2) = 0

Step-by-step explanation:

Function f(t) is defined in three different ways depending on the value of t.

For t = 8, function f(t) is -64/t.

For t = 10, function f(t) is 14 - t.

We are not asked about f(8) or f(10). We are asked about f(2). The third definition of function f(t) is for all values of t that are not 8 or 10. 2 is not 8 or 10, so use the third definition of function f(t) and plug in 2 for t.

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6 0
3 years ago
5^x+3=300<br>solve for X​
d1i1m1o1n [39]

Answer:  x=3.537715

Step-by-step explanation:

5x+3=300

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Step 2: Solve Exponent.

5x=297

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Hope this helps :)

8 0
3 years ago
Type the correct answer in each box. Round your answers to the nearest tenth.
Alexxandr [17]
To find the length of the ladder, you need to do Pythagorean theorem.
50^2 + 30^2 = x^2
2500 + 900 = x^2
x^2 =3400
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58.31 OR 10 root34

To find the angle: 
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6 0
3 years ago
4x + 3y = 16
GalinKa [24]

Answer:A

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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