2 years ago

Evaluate 18 -8(14 + 4) + 42.

1 answer:

Alina [70]2 years ago

4 0

Answer:

-84

Step-by-step explanation:

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saveliy_v [14]

Answer:

52.708

Explanation:

It's 708 instead of 78 even rounded 52.708 would be more.

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2 years ago

USPshnik [31]

11 choose 7 is equal to 11 choose 4. 11*10*9*8/4/3/2=330.

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2 years ago

Llana [10]

Answer:

I hope it helps.

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1 year ago

iVinArrow [24]

Your answer is 160 i had this on a test hope this helps

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2 years ago

gogolik [260]

Answer:

When x=8, y=-6. When x=10, y=0

Step-by-step explanation:

$y=3x-30\\x^2+y^2=100$

You can plug the given y value into the second equation to get:

$x^2+(3x-30)^2=100\\x^2+9x^2-180x+900=100\\10x^2-180x+800=0\\10(x^2-18x+80)=0\\10(x-8)(x+10)=0\\x= 8, 10\\y= -6, 0$

Hope this helps!

6 0

2 years ago