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4 years ago

What is the value of x in the following equation? 5x - 6(x + 1) + 8 = 0 A. 14 B. 16 C. 1 D. 2

Mathematics

1 answer:

Serga [27]4 years ago

8 0

Answer:

x=2

Step-by-step explanation:

5x - 6(x + 1) + 8 = 0

Distribute

5x -6x-6+8 =0

Combine like terms

-x+2 = 0

Add x to each side

-x+2+x = 0+x

2 =x

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3 years ago

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so the total lateral area is $4\sqrt{5}x$ (units squared)

and the total surface area is $20+4\sqrt{5}x$ (units squared)

2. Now consider the second figure KLMNP, Sydney's pyramid:

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so the total area of the second pyramid is $20+16 \sqrt{5}x$

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