Answer:
the distance of the Bird (B) from the plane (P) is = 10779 ft
Step-by-step explanation:
From the given information:
a diagrammatic representation is attached below for better understanding and solution to the question.
From the diagram;
Let the Bird (B) be represent as A
The plane (P) be represented by B
The observer be represented by O
and the tower T be represented by C
we will see that:
Also;
AO = BC = 7000
Let consider the trigonometry of triangle BAO
tan θ = opposite/adjacent
tan 33° = 7000/x
0.6494 = 7000/x
x = 7000/0.6494
x = 10779.18
x = 10779 ft ( to the nearest whole number)
Thus; the distance of the Bird (B) from the plane (P) is = 10779 ft
Y=x2 the extreme would be x=0
<u>A substance is tested and has a </u><u>Ph of 7.0</u><u>. It would be </u><u> a weak acid. </u>
<u>The correct option is </u><u>(c) a weak acid .</u>
<u></u>
What is the nature of substance if the pH is less than 7?
- Acidity is defined as pH below 7. More than 7 pH is considered basic.
- Each whole pH number below 7 is ten times more acidic than the next higher value since the pH scale is logarithmic.
- For instance, pH 4 is 100 times (10 times 10) more acidic than pH 6, while pH 5 is ten times (10 times) more acidic than pH 4.
What is pH?
- The pH scale determines how acidic or basic water is.
- The range is 0 to 14, with 7 representing neutrality.
- Acidity is indicated by pH values below 7, whereas baseness is shown by pH values above 7.
- In reality, pH is a measurement of the proportion of free hydrogen and hydroxyl ions in water.
Learn more about pH
brainly.com/question/27945512
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Answer:
a) $15287.71
b) $15017.64
c) $16,368 − <em>r</em>%
Step-by-step explanation:
<u>Mary's car price (including tax): $16,368</u>
[<em>possible tax rates and listing prices</em>]
<u>a) 6.6%</u>
➠ $15287.71
<u>b) 8.25%</u>
➠ $15017.64
<u>c) </u><u><em>r</em></u><u> (any rate)</u>
➠ $16,368 − <em>r</em>%
<u>How did I find my answers?</u>
I had to <em>find the sales tax</em>, and<em> subtract it from the overall cost</em> of the item.
- To find the sales tax, all I had to do was multiply the sales tax percentage by the price of the item
- Next, all I had to do was subtract the sales tax from the item's cost
Answer:
D is the answers for the question
Step-by-step explanation:
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