2 years ago

Please help 100 points!!! :) Who ever answers right first get's brainliest!!! :)

Mathematics

1 answer:

igomit [66]2 years ago

3 0

Answer:

1/7

Step-by-step explanation:

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Charlie is at a small air field watching for the approach of a small plane with engine trouble. He sees the plane at an angle of

lubasha [3.4K]

(32°) = 1700 feet / x => x = 1700 feet / tan(32°) = 1700 feet / 0.625 = 2720 feet.

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3 years ago

If a+1/a = 5, find the value of a² +1/a²

Orlov [11]

a - 1/a =5

take squaring both side

(a - 1/a )^2 = (5)^2

a^2 +1/a^2 -2.a.1/a =25

a^2+1/a^2 -2 =25

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2 years ago

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bekas [8.4K]

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3 years ago

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olganol [36]

Answer: The number of letters that must be engraved for the costs to be the same is 125.

Step-by-step explanation:

Since we have given that

$0.4e+10+15=0.20e+5+25$

We need to find the number of letters.

$0.4e+25=0.2e+30\\\\0.4e-0.2e=30-25\\\\0.2e=25\\\\e=\dfrac{25}{0.2}\\\\e=125$

Hence, the number of letters that must be engraved for the costs to be the same is 125.

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grandymaker [24]

Both exponential i.e 5 ^x
A is true, surprisingly.
B cannot be true, it alternates.(rule of indices negatives by positive exponent = positive, negative by negative , but -5 x -5 x -5 = + 5)
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2 years ago