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bazaltina [42]
3 years ago
11

PLEASE ANSWER ASAP IF YOU GET THE ANSWER

Mathematics
1 answer:
AfilCa [17]3 years ago
5 0

Answer:

54

Step-by-step explanation:

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A flagpole is located at the edge of a sheer y = 70-ft cliff at the bank of a river of width x = 40 ft. See the figure below. An
Gnom [1K]
I would solve this using tangents.  Let h be height of flagpole.
Set up 2 right triangles, each with a base of 40.
The larger triangle has height of "h+70"
Smaller triangle has height of 70.

Now write the tangent ratios:
tan A = \frac{h+70}{40}  , tan B = \frac{70}{40}

Note: A-B = 9
To solve for h we need to use the "Difference Angle" formula for Tangent
tan (A-B) = \frac{tanA - tanB}{1+tan A  tan B}
Plug in what we know:
tan(9) = \frac{ \frac{h+70}{40} -  \frac{70}{40}}{1+ (\frac{h+70}{40})(\frac{7}{4})}
tan (9) = \frac{ \frac{h}{40}}{ \frac{7h +650}{160}} = \frac{4h}{7h+650}
h = \frac{650 tan(9)}{4-7 tan(9)}
h = 35.6
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3 years ago
How to write 89,170,326 in expanded form
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80,000,000 + 9,000,000 + 100,00 + 70,000 +300 + 20 + 6

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Step-by-step explanation:

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I need help with 1/4x- 3=1/2x+12​
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