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3 years ago

Find x8(x+1)³ = 27(2x-1)³

Mathematics

1 answer:

STatiana [176]3 years ago

4 0

Answer:

As a fraction x = 5/4

As a decimal x = 1.25

Step-by-step explanation:

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Find the cos A and tan B to four decimal places. URGENT

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cos A is 0.8511 and tan B is 1.6

Step-by-step explanation:

Find the 3rd length or the hypotenuse.

Pythagoras theorem

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$hypotenuse^{2}$ = 64 + 25

hypotenuse = $\sqrt{89}$

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a) Cos A

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Adjacent = 8

Hypotenuse = 9.4

Formula:

Cos (Angle) = $\frac{adjacent}{hypotenuse}$

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A = $cos^{-1}$ (0.8511)

A = 31.7°

b) Tan B

Data:

Opposite = 8

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Formula:

Tan (Angle) = $\frac{opposite}{adjacent}$

Tan B = $\frac{8}{5}$

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B = 58°

Therefore, cos A is 0.8511 and tan B is 1.6.

Keyword: cos, tan

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Find x8(x+1)³ = 27(2x-1)³​

Find x8(x+1)³ = 27(2x-1)³