4 years ago

Help me with these please!!

Mathematics

1 answer:

Aliun [14]4 years ago

8 0

7x + 5y > = 280 (thats greater then or equal)

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Y=-x+3 y = -2.x +7 = 5.

lyudmila [28]

Answer:

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Step-by-step explanation:

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3 years ago

Andre hass $44. he must save at least $120

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Step-by-step explanation:

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Not sure how to solve 2sinxcosx+cosx=0 Could you help?

kaheart [24]

$2sinxcosx+cosx=0\\\\cosx(2sinx+1)=0\iff cosx=0\ \vee\ 2sinx+1=0\\\\cosx=0\ \vee\ 2sinx=-1\ /:2\\\\cosx=0\ \vee\ sinx=-\frac{1}{2}\\\\x=\frac{\pi}{2}+k\pi\ \vee\ x=-\frac{\pi}{6}+2k\pi\ \vee\ x=\frac{7\pi}{6}+2k\pi\ to\ k\in\mathbb{Z}$

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3 years ago

Can somebody help me?

alexira [117]

Answer:

it goes by twelves

Step-by-step explanation:

it goes 12 24 36 48 60 72 84 96 and it keeps going till the end.

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3 years ago

Simplify..................................

balu736 [363]

Answer:

idk this stuff yet

Step-by-step explanation:

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3 years ago