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kobusy [5.1K]
4 years ago
15

Please help me! i dont know what to do... And my weekend depends on you

Mathematics
1 answer:
kompoz [17]4 years ago
5 0

Answer:

A) x + y

Step-by-step explanation:

<em>X</em> fully distributed here is negative. <em>Y</em> fully distributed here is negative as well.

The rules of signs are as following in this situation:

x + y = -x + (-y) = -x - y = -# (negative)

x - y = -x - (-y) = -x + y = +# (positive)

x * y = -x * -y = +# (positive)

x/y = -x/-y = +# (positive)

Hope it helps!

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Answer:

11

Step-by-step explanation:

All angles on a triangle equal 180. 80+60=140.

Now to solve for x, we set it to equal 40 for 180-140.

40=3x+7. 40-7=33

33=3x 33/3=11

x=11

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3 years ago
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The Art club had an election to select a president. 40% of the 80 members of the club voted in the election. How many members di
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The hypotenuese of an isosceles right triangle is 13 inches. The midpoints of its sides are connected to form an inscribed trian
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Answer:

The Sum of the areas of theses triangles is 169/3.

Step-by-step explanation:

Consider the provided information.

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x^2+x^2=169\\2x^2=169\\x=\frac{13}{\sqrt{2} }

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It is given that sum of the area of these triangles if this process is continued infinitely.

We can find the sum of the area using infinite geometric series formula.

S=\frac{a}{1-r}

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S=\frac{\frac{169}{4}}{1-\frac{1}{4}}

S=\frac{\frac{169}{4}}{\frac{3}{4}}

S=\frac{169}{3}

Hence, the Sum of the areas of theses triangles is 169/3.

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