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2 years ago

#10 Solve the equation - 1/3 - 7 = 5

Mathematics

1 answer:

Naddik [55]2 years ago

5 0

-1/3m - 7 = 5

Add 7 to both sides to isolate -1/3m.

-1/3m = 12

Divide both sides by -1/3 to isolate m.

m = -4

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Giving the following information:

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Read 2 more answers

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A rhombus has four 6-inch sides and two 120-degree angles. From one of the vertices of the obtuse angles, the two latitudes are

nikitadnepr [17]

Answer:

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Step-by-step explanation:

We begin with finding the angles a and b that from the drawing attached you can see that a=b.

Now, the sum of the internal angles of a rhomboid is equal to 360 degrees, with that we have:

120+120+a+b=360

240+2a=360

2a=120

a=60=b

Next, in the image you can see that the lines coming from the angle at the top 120 degrees vertex, divide the opposite sides by half, thus making two triangles with one side of 6 in and another of 3 in.

We can say from the drawing as well:

Area(A)+Area(B)+Area(C)=Area(rhomboid)

But, we can also say that Area(A)=Area(C)

So, starting with Area(A)

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We can then calculate the area B, a rhomboid, or better, take the Total area of the figure and subtract the area of the two triangles.

Area(B)=Area(rhomboid)-Area(A)-Area(C)

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Area(rhomboid)=5.20*6= $31.2 in^{2}$

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