Solve the following equation algebraically: -16= 16x^2 how many solutions does this equation have?
1 answer:
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Answer:
[45tan(82°)+123] meters
A is correct
Step-by-step explanation:
You are standing 45 meters from the base of the Empire State Building.
You estimate that the angle of elevation to the top of the 86th floor(the observatory) is 82°.
If the total height of the building is another 123 meters above the 86th floor.
OB = 45 m , ∠O= 82°
In Δ OBA, ∠B = 90°
Top of the building, T at 123 m from A
Total height of building = BA + AT
Hence, The height of building from ground is [45tan82°+123] meters
Answer and Step-by-step explanation:
For this equation, we are solving for h.
We are given the equation:
2 + 4h - 1 = 13h
<u>First, we need to </u><u><em>Simplify</em></u><u> the equation.</u>
2 - 1 + 4h = 13h
1 + 4h = 13h
<u>Now, we need to </u><u><em>Subtract</em></u><u> 4h from both sides of the equation.</u>
1 + 4h - 4h = 13h - 4h
1 = 9h
<u>Finally, we </u><em><u>Divide</u></em><u> both sides by 9 to get h.</u>
<u>h is equal to </u><u>.</u>
To check your answer, we plug back into the given equation.
<u>I hope this helps!</u>
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