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victus00 [196]
3 years ago
15

Guys, please help! I'm reaallllyyyy desperate!

Mathematics
2 answers:
kvv77 [185]3 years ago
5 0

Answer:

So first, let's substiute the variables into numbers based on your problem. We get -(-1)-(5)^2+3(-1)(5). If we solve that expression, we will get -39. So, your answer is -39. Hope this helps and good luck

Step-by-step explanation:

Kisachek [45]3 years ago
5 0

Answer:

-12

Step-by-step explanation:

-a-b²+3ab

-(-1)-5²+3(-1×5)

+1-25-3+25

-24-3+15

-27+15

=-12

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Then, we need to find the distance travelled by each plane, using the formula:

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Now, to find the distance between the planes, we can use the law of cosines:

distance^2 = 1200^2 + 1125^2 - 2*1200*1125*cos(105)

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