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Alex_Xolod [135]
3 years ago
7

Help pleaseeeee:)))))))

Mathematics
2 answers:
omeli [17]3 years ago
8 0

5 by 3

3rd one

there we have to find hypotenuse.

Inga [223]3 years ago
3 0

Answer:

+- 5/3

Step-by-step explanation:

When we construct a right triangle with legs with length 3 and 4. The hypoteneuse must 5. Since tan(x) = opp/adj = 4/3 and sec(x) = hyp/adj,

We get the answer to be 5/3. Now there is a +- there because if we use the unit circle, if we take the point (-3, -4), we get tan(x) = (-4/-3) = 4/3. However, the hypoteneuse for sec(x) is always positive so sec(x) = 5/-3 = -5/3.

That is why there are two solutions, one with the terminal arm in Q3 and one in Q1. But that's the explanation using the unit circle.

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5(x+4)> 2x-7 solve the inequality
galina1969 [7]

Answer:

-9>x

Step-by-step explanation:

5(x+4)>2x-7

5x+20>2x-7

5x+20>2x-7

<u>     +7           +7</u>

5x+27>2x

        ↓

5x+27>2x

<u>-5x        -5x</u>

27>-3x

      ↓

<u>27>-3x </u>

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= -9>x

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3 years ago
Plz help ;-; I think its B...
SVETLANKA909090 [29]

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3 years ago
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Is xy = yx? Explain how you know
blagie [28]

Answer:

Yes

Step-by-step explanation:

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4 0
2 years ago
The formula for the perimeter of a rectangle is P = 2L + 2W. The length of a rectangle is 3 times its width. Which expression re
omeli [17]

The perimeter of a rectangle is given by the following formula:     P = 2W + 2L

To solve this formula for W, the goal is to isolate this variable to one side of the equation such that the width of the rectangle (W) can be solved when given its perimeter (P) and length (L).

     P = 2W + 2L

          subtract 2L from both sides of the equation

     P - 2L = 2W + 2L - 2L

     P - 2L = 2W

           divide both sides of the equation by 2

     (P - 2L)/2 = (2W)/2

     (P - 2L)/2 = (2/2)W

     (P - 2L)/2 = (1)W

     (P - 2L)/2 = W

Thus, given that the perimeter (P) of a rectangle is defined by    P = 2W + 2L ,

   then its width (W) is given by    <span>W = (P - 2L)/2</span>

3 0
3 years ago
Which expression is equivalent to third- 32^3/5 ​
lara [203]

Answer:

Step-by-step explanation:

(-32)^3/5 =((-32)^1/5)^3 = (-2)^3 = -8. QED

6 0
3 years ago
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