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densk [106]
3 years ago
13

A large totem pole near Kalama, Washington, is 100 feet tall. On a particular day at noon it casts a 219-foot shadow. What is th

e sun's angle of elevation at that time? Round to the nearest tenth. show work

Mathematics
1 answer:
zhenek [66]3 years ago
7 0

Answer: Angle of elevation of sun at that time is 24.51° .

Step-by-step explanation:

Since we have given that

Height of a large totem pole near Kalama, Washington = 100 feet

Length of a shadow at noon = 219 foot

We need to find the angle of elevation of sun at that time .

As  we know the formula for "Tangent ":

\tan\theta=\frac{AB}{BC}\\\\\tan\theta=\frac{100}{219}\\\\\tan\theta=0.456\\\\\theta=\tan^{-1}(0.456)\\\\\theta=24.51\textdegree

Hence, Angle of elevation of sun at that time is 24.51° .

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The cash drawer of the market contains $227. There are six more $5 bills than $10 bills. The number of $1 bills is two more than
k0ka [10]

Answer:

There are 122 one dollar bills, 11 five dollar bills and 5 ten dollar bills.

Step-by-step explanation:

There are bills of one dollar, five dollars and ten dollars on the cash drawer, therefore the sum of all of them multiplied by their respective values must be equal to the total amount of money on the drawer. We will call the number of one dollar bills, five dollar bills and ten dollar bills, respectively "x","y" and "z", therefore we can create the following expression:

x + 5*y + 10*z = 227

We know that there are six more 5 dollar bills than 10 dollar bills and that the number of 1 dollar bills is two more than 24 times the number of 10 dollar bills, therefore:

y = z + 6\\x = 2 + 24*z

Applying these values on the first equation, we have:

2 + 24*z + 5*(z + 6) + 10*z = 227\\2 + 24*z + 5*z + 30 + 10*z = 227\\39*z + 32 = 227\\39*z = 227 - 32\\39*z = 195\\z = \frac{195}{39}\\z = 5

Applying z to the formulas of y and x, we have:

y = 5 + 6 = 11\\x = 2 + 24*5 = 122

There are 122 one dollar bills, 11 five dollar bills and 5 ten dollar bills.

4 0
3 years ago
What property can you use to write an equivalent expression for -5(x-2)? Explain.
emmainna [20.7K]

Answer:

-5x+10

Step-by-step explanation:

-5(x-2)=-5x+10

3 0
4 years ago
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Please help me with this one, I’m really stuck on it.
ANTONII [103]
I don’t know if this will help but here you go

6 0
3 years ago
Can someone explain the answer to this and how to work it
9966 [12]
Your answer is 3/5, the picture below shows how sin cos tan work!

5 0
3 years ago
Last question for now in math:<br> *please help*
spin [16.1K]

The height of Mount Kilimanjaro is 19,340 feet.

To convert to scientific notation move the decimal point so there is only 1 digit to the left of the decimal pint, you then multiply that by 10 raised to the number of spaces you moved the decimal point.

19,340 - Move the decimal point 4 places to the left to get 1.9340

You can remove the 0 at the end to get 1.934

You moved the decimal 4 places so raise 10 to 4 and get the final answer:

1.934 x 10^4

The first choice is the correct one.

3 0
3 years ago
Read 2 more answers
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