Rearrange the formula to make x the subject : 5( a - 2x) = 9(x + 1)

Mathematics

1 answer:

katovenus [111]3 years ago

6 0

Answer:

x = $\frac{5a-9}{19}$

Step-by-step explanation:

Given

5(a - 2x) = 9(x + 1) ← distribute parenthesis on both sides

5a - 10x = 9x + 9 ( add 10x to both sides )

5a = 19x + 9 ( subtract 9 from both sides )

5a - 9 = 19x ( divide both sides by 19 )

$\frac{5a-9}{19}$ = x

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Root 3 cosec140° - sec140°=4 prove that

Lorico [155]

Answer:

Step-by-step explanation:

We are to show that $\sqrt{3} cosec140^{0} - sec140^{0} = 4\\$

Proof:

From trigonometry identity;

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