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BartSMP [9]
3 years ago
9

Can someone check my answers? I'm not sure I have them all right...

Mathematics
1 answer:
Semmy [17]3 years ago
3 0
<span>What is the y-intercept of the plane whose equation is 4x + 5y + z = 20?

(0, 4, 0) 


Which equation has intercepts at X(1, 0, 0), Y(0, 1, 0), and Z(0, 0, 2)?

2x + 2y + z = 2


Which equation is equivalent to x + 3y + z = 3?


4x + 12y + 4z = 12


Which of the following points lies in the plane 3x + 2y + 4z = 12?

(4, 3,2)


Hope these answer the questions. Have a nice day.</span>
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Notice that:

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Answer:

cos(\frac{4\pi}{3})=-\frac{1}{2}\text{.}

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Read 2 more answers
-7(-5v-3u 4) use the distributive property to remove the parentheses
Marrrta [24]
Distributeiv poepty
a(b+c)=ab+ac

remember that (-) times (-)=(+)
and (+) TIMES (-)=(-)

SO
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