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enot [183]
4 years ago
12

Evalute 16^1/2×2^-3.

Mathematics
1 answer:
xxTIMURxx [149]4 years ago
8 0

Answer:

→ 16 × 1 = 16 / 16 ÷ 2 = 8 / 8×2 = 16 × 2 = 32 / 32-3 = 29

Step-by-step explanation:

♥♡♥

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3. A utility pole is 38 ft tall. The pole creates a 53 ft shadow. What is the angle of elevation of the sun? Round your answer t
dybincka [34]

Answer:

The angle of elevation of the sun is 36\degree.

Step-by-step explanation:

Let x be the angle of elevation of the sun as shown in the diagram.


Then the side length which is 38 feet is opposite to x and the side length which is 53 feet is adjacent to x.


Therefore we use the trigonometric ratio that involves the opposite and adjacent sides, which is the tangent ratio.


\tan x=\frac{38}{53}


\Rightarrow \tan x=0.71698


We solve for x to get,


x=\arctan (0.71698)


\Rightarrow x=35.63981


To the nearest degree, the angle of elevation is 36\degree







4 0
3 years ago
What are the true and false statements for If two planes intersect, then their intersection is a line. Include converse, inverse
KonstantinChe [14]

Answer and Step-by-step explanation:

Solution:

Statement:

If two planes intersect  their intersection is a line.

Suppose that

P =if two planes intersect.

q = then their intersection is line.

¬p = if two planes do not intersect.

¬q = then their intersection is not a line.

Converse:

If two planes intersect their intersection is a line.

P → q

Inverse:

If two planes do not intersect, then their intersection is not a line.

¬p → ¬q

Contrapositive:

If two planes intersection is not a line, then they do not intersect.

¬q → ¬p

3 0
4 years ago
Need help what is the answer
melomori [17]

Answer:

76575755

Step-by-step explanation:

3 0
2 years ago
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How do I solve this by graphing?
Inessa05 [86]
0 = 5x+3
-3 = 5x
X = -3/5
6 0
3 years ago
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Help plz thank you I appreciate if u guys can help me
jok3333 [9.3K]

Answer:4

Step-by-step explanation:

5 0
3 years ago
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