An airplane descends 1.5 miles to an elavation of 5.25 miles. Find the elevation of the plane before it's decent.

1 answer:

7 0

Answer-
6.75 miles
Explanation-
You have to find the distance before so you went down which is negative, so going up is positive
Simple words-
You have to add the decimals.
Even simpler words-
Add

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Answer:

Im sorry but I am not really sure myself ! I hope you find or found your answer already !

Step-by-step explanation:

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If A+B= 45° then prove that: tanA+ tanB+ tanA. tanB

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Answer:

See Explanation

Step-by-step explanation:

$A+B= 45 \degree \\ \\ assuming \: \tan \: on \: both \: sides \\ \\\implies \: \tan( A+B)= \tan 45 \degree \\ \\ \implies \: \tan( A+B)= 1 \: \: \\ ( \because \: \tan 45 \degree = 1) \\ \\ \implies \: \frac{\tan \: A +\tan \: B }{1 - \tan \: A .\tan \: B } = 1 \\ \\ \implies \: \tan \: A +\tan \: B = 1 - \tan \: A .\tan \: B \\ \\ \purple{ \implies }\: \orange{ \bold{\tan \: A +\tan \: B + \tan \: A .\tan \: B= 1 }} \\ \\ thus \: proved$

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Answer:

Step-by-step explanation:

2(2)2 -3(2) + 7

2(4) - 6 + 7

8 - 6 + 7

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3 years ago

Subtract.

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Answer:

5x^2 -3x +9

Step-by-step explanation:

(5x2 + 7) - (3x - 2)

Distribute the minus sign

5x^2 +7 -3x +2

Combine like terms

5x^2 -3x +9

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Use a truth table to test the validity of the following argument.

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Where’s the truth table test ?

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