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Korolek [52]
3 years ago
8

J(2x+9) m(6x-1) i don’t get this at all

Mathematics
1 answer:
kherson [118]3 years ago
4 0

Answer:

omg that one is hard but it is 18j-6m

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What are the rounded answers to each question?
matrenka [14]

For the given triangle, m∠G° = 51°, HI = 23.3 units, and GH = 18.9 units.

Step-by-step explanation:

Step 1:

In the triangle, the given angle is 39°, the hypotenuse side's length is 30 units. Assume the opposite side's length is x units.

To determine the opposite side's length, we determine the sin of the angle. To calculate the sin of an angle, we divide the opposite side's length by the hypotenuse's length.

sin\theta= \frac{oppositeside}{hypotenuse}, sin39=\frac{x}{30}.

0.6293 = \frac{x}{30} , x = 18.879.

GH measures 18.879 units. Rounding this off, we get 18.9 units.

Step 2:

Assume the side HI measures y units. According to Pythagoras' theorem,

30^{2}= 18.879^{2} +y^{2} , y^{2}=30^{2}-18.879^{2}.

y^{2} = 543.5834, y = 23.314.

So HI measures 23.314 units. Rounding this off, we get 23.3 units.

Step 3:

GHI is a triangle and all triangles have a total angle of 180°.

\begin{aligned}&\angle G^{\circ}+\angle H^{\circ}+\angle I^{\circ}=180^{\circ},\\&\angle G^{\circ}+90^{\circ}+39^{\circ}=180^{\circ},\\&\angle G^{\circ}=180^{\circ}-129^{\circ}=51^{\circ}.\end{aligned}

So ∠G° measures 51°.

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(c−9)2−(4c−2)2 factor
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Answer:

−2(3c  +  7)

Step-by-step explanation:

Factor the polyomial

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