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tankabanditka [31]
3 years ago
13

Evaluate 2(x+6) +3r+4

Mathematics
2 answers:
Rudik [331]3 years ago
5 0

3

Alchen [17]3 years ago
5 0

Answer:

2x+3r+16

Step-by-step explanation:

If you mean by simplify, here's the solution

2(x+6)+3r+4

2x+12+3r+4

2x+3r+16

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8 0
3 years ago
If tan theta = 10/13 and cos theta > 0 then sin2theta is what ?
svetoff [14.1K]

sin2\alpha  = \frac{260}{269}

<u>Step-by-step explanation:</u>

We have , Tan\alpha  = \frac{Perpendicular}{Base} = \frac{10}{13},

We know that sin\alpha  = \frac{Perpendicular}{Hypotenuse} = \frac{Perpendicular}{\sqrt[2]{(Perpendicualr)^{2} + (Base)^{2})} }

Substituting values of P & B , sin\alpha  = \frac{10}{\sqrt{10^{2} + 13^{2}} }  = \frac{10}{\sqrt{269} }

Now , sin2\alpha  = 2sin\alpha cos\alpha  = 2sin\alpha \sqrt{1 - (sin\alpha)^{2} }

⇒sin2\alpha  = \frac{10}{\sqrt{269} } ×\sqrt{1 - (\frac{10}{\sqrt{269} })^{2} }×2

⇒ sin2\alpha  = \frac{20}{\sqrt{269} }( \sqrt{\frac{269 - 100}{269} }  )

⇒sin2\alpha  = \frac{20}{\sqrt{269} }( \sqrt{\frac{169 }{269} }  )

⇒sin2\alpha  = \frac{260}{\sqrt{269} }( \sqrt{\frac{1}{269} }  )

⇒sin2\alpha  = \frac{260}{269}

6 0
3 years ago
The points (-2 11) and (6 3) lie on the same line. What is the x-intercept of the line.
ololo11 [35]
The x-intercept is (11.43,0) I don’t know how to explain it to you
7 0
3 years ago
What is the example of 897 * 39+(34*964)
Verizon [17]

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Step-by-step explanation:

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4 0
3 years ago
A square has one of its sides increased by 7 inches and the other side decreased by 4 inches. Which of the following represents
Anna71 [15]

Answer:

Step-by-step explanation:

both the length and the width of a square is the same measurement.

so if both measured to "x" then that means one side increase +7.

so one side is x + 7

and the other side decreased -4

so the other side is x - 4

area of square = length x width or just one of the sides to the power of 2

so (x+7) * (x-4) = Area

x^2 + 3x - 21 = area

7 0
3 years ago
Read 2 more answers
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