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Effectus [21]
3 years ago
7

Rewrite the expressions below by completing the square.

Mathematics
1 answer:
Mrrafil [7]3 years ago
3 0

Answer:

(x + 2)^2 - 1

Step-by-step explanation:

x^2 + 4x + 1

= (x^2 + 4x + 2 - 2 + 1)

= (x + 2)^2 - 1

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What is the area of a piece of plywood measuring 2 feet 8 inches long by 2 feet 4 inches wide? Give your answer in square inches
Kruka [31]

Given

piece of plywood measuring 2 feet 8 inches long by 2 feet 4 inches wide.

What is the area of a piece of plywood .

To proof

Here plywood shape in the form of rectangle.

Formula

Area of rectangle = Length×Breadth

As given in the question

Length =2 feet 8 inches

Breadth = 2 feet 4 inches

First convert feet into inches

1 feet = 12 inches

2 feet 8 inches = 2×12 + 8

                       =  32 inches

Also

2 feet 4 inches  = 2×12 +4

                          = 28 inches

put is in the above formula

Area of plywood = 32 ×28

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Therefore option (b) is correct

Hence proved


8 0
3 years ago
If you are good at sequences in math please help I am giving more points
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an = 101 - 5(n - 1)

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Step-by-step explanation:

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Plz hellppp -4(x-2) +5 = -10
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Answer:

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Step-by-step explanation:

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