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Lera25 [3.4K]
3 years ago
11

A tree 4.7 m tall casts a shadow 8.2 m long. Calculate the angle of elevation of the sun.

Mathematics
1 answer:
EleoNora [17]3 years ago
3 0

Answer:

9.45

Step-by-step explanation:

A^2 + B^2 = C^2

4.7^2 + 8.2^2 = C^2

22.09 + 67.24 = C^2

89.33 = C^2

Square Root It

C = 9.45

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A coat cost $37.88 at Walmart. The sales tax is 5.5%. What is the total amount of the coat including the sales tax?​
Pepsi [2]
$39.96 should be ur answer

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Pls I need your helppppp
alexandr402 [8]

Answer:

3 6 9

8 16. 24

Step-by-step explanation:

6 0
2 years ago
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10% of the songs on Emma's playlist are in Spanish. If she has 6 Spanish songs on her playlist, how many total songs are on it?
Vinvika [58]

If 10% of songs represents 6 songs,

then 100% of songs represents (100 * 6) / 10 = 60 songs

The playlist has a total of 60 songs.

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3 years ago
Help with this question, ASAP!!
allochka39001 [22]

Answer:

The answer to your question is the third option

Step-by-step explanation:

a)               0.023x³ + 0.4x² - 2.1x + 8.3

                 0.023(2)³ + 0.4(2)² - 2.1(2) + 8.3

                 0.023(8) + 0.4(4) - 2.1(2) + 8.3

                 0.184 + 1.6 - 4.2 + 8.3

                 10.084 - 4.2

                 5.884

b)              0.023(4)³ + 0.4(4)² - 2.1(4) + 8.3          

                 0.023(64) + 0.4(16) - 8.4 + 8.3

                 1.472 + 6.4 - 8.4 + 8.3

                 16.172 - 8.4

                7.772

3 0
3 years ago
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Write and graph an equation:
Alexxandr [17]

Answer:

y=29*x

Step-by-step explanation:

This problem is a linear function problem. We need at least two points to solve it. After finding two points we will compute the slope and then us the point-slope formula.

If you put 11 gallons of gasoline in your car it will allow you to drive 319 miles, this means that when x= 11 then, y=319. So the first point is (11,319). For the second point you now that if you have no gallons of gasoline then you won't be able to drive so, the second point is (0,0).

Now that we have to points we are able to compute the slope. The formula for the slope is:

m = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}.

this way

m = \frac{0-319}{0-11}.

m = 29.

Now that we have the slope, we can use the point-slope formula to get the equation. The point-slope formula is:

(y-y_{1}) = m(x-x_{1}) (here it doesn't matter which point you use, you will get the same result).

Substituting the point (11,319) and the slope:

(y-319) = 29(x-11)

y-319 = 29x-319

y = 29x

And we finaly get the equation!

6 0
3 years ago
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