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3 years ago

I need help please and thank you ( umm 10 points i think ). thank u

Mathematics

2 answers:

PilotLPTM [1.2K]3 years ago

6 0

this is simple

since y = -1

y = 5x + 4

-1 = 5x + 4

5x = -5

x = -1

therefore answer is (-1, -1)

ella [17]3 years ago

5 0

Answer:

Step-by-step explanation:

since it tells you y is=1 plug that into the top equation

-1=5x+4

-1=x

and you already have y=-1

so its(-1,-1)

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zubka84 [21]

Answer:

See Explanation Below

Step-by-step explanation:

Given

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Required

Prove

To start with; we open the bracket on the left hand side

$(sin x - cos x)^2 = (sin x - cos x)(sin x - cos x)$

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$(sin x - cos x)^2 = sin^2 x -sinx cos x - sin xcos x + cos^2 x$

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Reorder

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From trigonometry;

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So;

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ss7ja [257]

Answer:

Step-by-step explanation:

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