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musickatia [10]
3 years ago
5

Drag a reason to each box to complete this proof. If 1/2(8x+14)=39 , then x = 8.

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
7 0

Answer:


Step-by-step explanation:

We have given,

\frac{1}{2}*(8x+14)=39

Take out 2 from the left side and we multiply both side by 2 we get:

(4x + 7) = 39            

Next,

subtract both sides by 7, we get :

4x = 32

Now we divide both sides by 4, to get x.

So we get, x = 8




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The height of the kite can be determined using the trigonometric ratio.

Thus, we have;

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From the given data, the values are  \theta=42^{\circ}, opp = h (height of the kite) and hyp = 105 meters.

Substituting the values, we get;

sin \ 42=\frac{h}{105}

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We have:

A manager wants to select one group of 4 people from his 28 assistants.

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