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2 years ago

A system of linear equations for the variables x and y is shown.

Mathematics

1 answer:

love history [14]2 years ago

7 0

Answer: -3

Step-by-step explanation:

Given

Equations of the lines are

$y=-x-4\\3y=cx-18$

For the system of linear equation $a_1x+b_1y=c_1,a_2x+b_2y=c_2$ has no solution if

$\dfrac{a_1}{a_2}=\dfrac{b_1}{b_2}\neq \dfrac{c_1}{c_2}$

Rewrite the equations

$x+y=-4,\ cx-3y=18$

Insert the values for the no solution condition

$\Rightarrow \dfrac{1}{c}=\dfrac{1}{-3}\\\\\Rightarrow c=-3$

Therefore, for c=-3, the system of linear equation ha no solution.

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zysi [14]

Answer:

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Probability of getting heads on the next flip is 50%

Step-by-step explanation:

Based on the information given to us in the question we have a total of 100 coins in the bag and only 1 is double heads. Therefore the probability of you picking the double sided coin is $\frac{1}{100}$ or 1 % . This probability is not affected by the fact that the coin you chose got heads 7 times in 7 flips.

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I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

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3 years ago

2g + h =2 g -h= -5 find g and h step by step explanation

wel

Answer:

Step-by-step explanation:

2g + h = 2 --------------(I)

g - h = -5------------(II)

g = -5 + h

Plugin g = -5 + h in equation (I)

2(-5 + h) + h = 2 {Distributive property:a(b+c) = a*b +a*c}

(-5)*2 + h *2 + h= 2

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h = 12/3

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Substitute h= 6 in equation (I)

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2g = -2

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g = -1

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