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AVprozaik [17]
3 years ago
15

Please help ! i really need it

Mathematics
1 answer:
BigorU [14]3 years ago
5 0

To solve the problem, we need to use the relation between the angles to find a relation involving x. Then we need to solve for x and use that value to determine the measure of the desired angle.

The diagram shows you ...

... ∠KIJ + ∠JIH = ∠KIH

The problem statement tells you ∠KIJ = ∠JIH, so we can substitute ∠JIH in the above equation to get

... ∠JIH + ∠JIH = ∠KIH

... (4x+3) + (4x+3) = (12x)

... 8x +6 = 12x

... 6 = 4x . . . . . . . subtract 8x

Since we want to know the value of 12x, we can go directly there

... 18 = 12x . . . . . . multiply the above equation by 3

m∠KIH = 18°

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10._____NaBr+____CaF2 -> ____NaF+____CaBr2
fomenos

Answer:

2NaBr + CaF2 --> 2NaF + CaBr2 gives you:

2Na                        2Na

2Br                         2F

1Ca                         1Ca

2F                           2Br

This is balanced.

Step-by-step explanation:

2,1,2,1.

In a balanced chemical equation, the number of particular atoms on the right side of the equation is equal to the number of that atom on the left side of the equation.

As in the left side of the equation, there are 2 F atom and 1 Br. While on the right side there are 1 F and 2 Br. S for the balancing, we will put coefficient to the equation.

And the equation will be:

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