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3 years ago

A piece of wire 2/5 m long is to be cut into six pieces of the same length what is the length of each piece

Mathematics

2 answers:

bonufazy [111]3 years ago

8 0

Answer:

each peice will be 1/15 m long.

Step-by-step explanation:

wariber [46]3 years ago

4 0

Answer:

you got this

Step-by-step explanation:your smart try to figure it out by yourself

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Solve (x + 1)2 – 4(x + 1) + 2 = 0 using substitution.

solniwko [45]

For this case we have to:

Let $u = x + 1$

So:

$u ^ 2-4u + 2 = 0$

We have the solution will be given by:

$u = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2 (a)}$

Where:

$a = 1\\b = -4\\c = 2$

Substituting:

$u = \frac {- (- 4) \pm \sqrt {(- 4) ^ 2-4 (1) (2)}} {2 (1)}\\u = \frac {4 \pm \sqrt {16-8}} {2}\\u = \frac {4 \pm \sqrt {8}} {2}\\u = \frac {4 \pm \sqrt {2 ^ 2 * 2}} {2}\\u = \frac {4 \pm2 \sqrt {2}} {2}$

The solutions are:

$u_ {1} = \frac {4 + 2 \sqrt {2}} {2} = 2 + \sqrt {2}\\u_ {2} = \frac {4-2 \sqrt {2}} {2} = 2- \sqrt {2}$

Returning the change:

$2+ \sqrt {2} = x_ {1} +1\\x_ {1} = 1 + \sqrt {2}\\2- \sqrt {2} = x_ {2} +1\\x_ {2} = 1- \sqrt {2}$

Answer:

$x_ {1} = 1 + \sqrt {2}\\x_ {2} = 1- \sqrt {2}$

3 0

3 years ago

Read 2 more answers

Please help me quickly the question is on the image <br><br>

Paul [167]

I’m not 100% sure but I think it’s y=5x+20

8 0

3 years ago

6 cakes cost £6.48 how much does one cost

sveta [45]

6.48 divide by 6 and u will get the answer

8 0

3 years ago

In the figures, ΔCDA ≈ ΔXYZ

Svetradugi [14.3K]

CD = XY = 26 mm
hope that helps

3 0

3 years ago

The length of a rectangular garden is 3 yd less than twice its length. The perimeter of the garden is 78 yd. What are the width

Alenkasestr [34]

Complete question :

Answer:

Width = 14 yards ; length = 25 yards

Step-by-step explanation:

Given that :

The length of a rectangular garden is 3 yd less than twice its length. The perimeter of the garden is 78 yd. What are the width and length of the garden?

Width of garden (W) = w

Lenght of garden (L) = 2w - 3

Perimeter of a rectangle : 2 (L + W)

2(2w - 3 + w) = 78

2(3w - 3) = 78

6w - 6 = 78

6w = 78 + 6

6w = 84

w = 14 yards

Length = 2(14) - 3

Length = 28 - 3 = 25 yards

3 0

3 years ago