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3 years ago

Which of the following are equal to O(7) O(n)=2n-1

Mathematics

1 answer:

kari74 [83]3 years ago

7 0

So from this given result that O(7)=2*7-1 = 13

hope this will help you

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Explain why 2/3 x 12 can be written as 2 x 12 divided into 3.

777dan777 [17]

because of the communities property

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3 years ago

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PLEASE ANWSER CORRECTLY!! I WILL MARK BRAINIEST!!!

tankabanditka [31]

Answer:

$x = 10°$

$z = 66°$

Step-by-step explanation:

$(9x - 24)° + (12x - 6)° = 180°\\21x° - 30° = 180° \\ 21 x° = 180° + 30° \\ 21x° = 210° \\ x° = \frac{180°}{30°} \\ x° = 10°$

z° = 9x - 24 ( vertically opposite )

z° = 9(10) - 24

z° = 90 - 24

z° = 66°

<h3>Hope it is helpful.....</h3>

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3 years ago

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In ∆PQR, p=13 inches, q=18 inches and r= 12 inches. Find the area of ∆PQR to the nearest square inch.

sveta [45]

Given data:

The first side of the triangle is p=13 inches.

The second side of the triangle is q=18 inches.

The third side of the triangle is r= 12 inches.

The semi-perimeter is,

$\begin{gathered} s=\frac{p+q+r}{2} \\ =\frac{13\text{ in+18 in+12 in}}{2} \\ =21.5\text{ in} \end{gathered}$

The expression for the area of the triangle is,

$\begin{gathered} A=\sqrt[]{s(s-p)(s-q)(s-r)_{}} \\ =\sqrt[]{21.5\text{ in(21.5 in-13 in)(21.5 in-18 in)(21.5 in-12 in)}} \\ =\sqrt[]{(21.5\text{ in)(8.5 in)(3.5 in)(9.5 in)}} \\ =77.95in^2 \end{gathered}$

Thus, the area of the given triangle is 77.95 sq-inches.

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1 year ago

Can someone help me

gavmur [86]

Answer:yes

Step-by-step explanation:

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4 years ago

Help please ASAP !!!!!!

Lyrx [107]

No cap absolutely I think its the 2nd one tho

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3 years ago