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lana66690 [7]
3 years ago
15

a tree casts a shadow 32 feet long .the Angle of elevation of the sun is 62° what is the height of the tree

Mathematics
2 answers:
RoseWind [281]3 years ago
5 0
90-62= 28
law of sines 28/32= sin 62/h
h= 32 sin 62/sin 28
h= 60.18 feet
Delicious77 [7]3 years ago
4 0
\tan \theta = \dfrac{opp}{adj}

\tan 62^\circ = \dfrac{y}{32~ft}

y = 32 \tan 62^\circ ~ft

y = 60.2 ~ft

Answer: The tree is 60.2 ft tall.
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The degree of the product is the ____ of the degrees of the factors
Leno4ka [110]

Answer:

Highest

Step-by-step explanation:

This is true because the largest degree is the one that influences the graph and ultimately the end behavior the most. The question you have is simply the a definition-property of degrees.

3 0
3 years ago
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Help~~~~~~~~~~~~~~~~~~~~~~~~~
igor_vitrenko [27]

Answer:

28.25 square units

Step-by-step explanation:

A circumference of the circle is

C=2\pi r,

where r is the radius of the circle.

So,

18.84=2\pi r\\ \\r=\dfrac{18.84}{2\pi}=\dfrac{9.42}{\pi}\ cm

The area of the circle is

A=\pi r^2

Substitute the value of the radius:

A=\pi \cdot \left(\dfrac{9.42}{\pi}\right)^2=\dfrac{9.42^2}{\pi}\approx 28.25\ un^2

8 0
3 years ago
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The tens digit is twice the units digit. Reverse the digits, add 2 and the new number is 34 less than the original number. Find
inna [77]

Answer:

Step-by-step explanation: X and Y represent the digits.

The tens digit is twice the units digit.

The digit in the Tens place has 10× its base value, so we can set up equations to model the information given.

10x +y 10y +x are Original & Reversed numbers

X = 2y means the Tens digits is twice the units digit.

10y + x +2 = 10x +y - 34 models the statement: The reversed number plus two is 34 less than the original number.

Substitute 2y for x to solve for y

10y +2y +2= 10(2y) + y -34

Distribute and combine like terms

12y + 2 = 20y +y - 34

34 +2 = 21y -12y

36 = 9y Divide both sides to find the value of y.

4 = y

X = 2(4) Substitute 4 for y to find x

X = 8

Original number: 84 Reversed number: 48

Substitute into equation model

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50 = 50

True!

3 0
3 years ago
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infinite

Step-by-step explanation:

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DedPeter [7]

Answer: <em>y = 2x − 4</em>

The correct answer is <em>B)</em> <em>y = 2x − 4</em>

Step-by-step explanation:

<u>Move all terms that don't contain y to the right side and solve:</u>

<em>y = −4 + 2x</em>

<u>Then reorder −4 and 2x:</u>

<em>y = 2x − 4</em>

<u>Final answer is:</u>

<em>B) y = 2x − 4</em>

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