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3 years ago

Need help with this question!

Mathematics

1 answer:

laiz [17]3 years ago

7 0

Answer:

w<= -5

Step-by-step explanation:

w <= -5

If w = -5 ; -5 + 4 = -1 = -1

If w= -6 ; -6 + 4 = -2 < -1

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Answer:

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3 years ago

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UNO [17]

I = PRT

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3 years ago

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guajiro [1.7K]

Answer:

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Step-by-step explanation:

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2 years ago

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I need help with substitution

Neporo4naja [7]

Answer:

(-7,-15)

Step-by-step explanation:

We can substitute first y in the second y. Both equations are also functions. We can merge the equations.

$2x - 1 = x - 8 \\ 2x - x = - 8 + 1 \\ x = - 7$

Substitute x = -7 in any given equations. I will choose the second equation to substitute in.

$y = x - 8 \\ y = - 7 - 8 \\ y = - 15$

Answer Check

Substitute both x and y in both equations.

$- 15 = 2( - 7) - 1 \\ - 15 = - 14 - 1 \\ - 15 = - 15$

The equation is true for (-7,-15).

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3 years ago

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