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3 years ago

SomEone PLEASE HELP ME!!!!

Mathematics

1 answer:

Lesechka [4]3 years ago

8 0

We have a law in geometry called ((power of a node)) the formula is:

$fe \times fd = {gf}^{2}$

according to the formula:

9(FD)=12^2 ==> FD=144/9=16

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JOURNAL 5.3.4. PLZZZ HELP, I NEED 1-9

aniked [119]

Answer:

Step-by-step explanation:

7 0

3 years ago

Pls help me guys! Thanks =D

Natasha_Volkova [10]

108 in^2

Because,

As you can see, inside the trapezoid has the square.
AND
A = lw
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9 * 12 = 108

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3 years ago

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The length of a rectangular mailing

anygoal [31]

ANSWER

Let the width be y

2(L + W) = Perimeter

2(2y - 5cm + y) = 62cm

(2×2y) + (2×-5cm) + (2×y) = 62cm

4y + - 10cm + 2y = 62cm

4y - 10cm + 2y = 62cm

4y + 2y - 10cm = 62cm

6y - 10cm + 10cm = 62cm + 10cm

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6 6

y = 12cm

WIDTH

= y

= 12cm

LENGTH

= 2y - 5cm

= 2×y - 5cm

= 2×12cm - 5cm

= 24cm - 5cm

= 19cm

Providence

19cm + 19cm + 12cm + 12cm = 62cm which is the perimeter

7 0

2 years ago

Factorise 3(x+y)^2 -5(x+y) + 2

sammy [17]

Answer:

$3x^2+3y^2+6xy-5x-5y+2$

Step-by-step explanation:

$3(x+y)^2 -5(x+y) + 2$

$\mathrm{Expand}\:-5\left(x+y\right)+2$

$-5x-5y+2$

$\mathrm{Simplify}\:3\left(x+y\right)^2$

$3\left(x^2+2xy+y^2\right)$

$3x^2+3\times \:2xy+3y^2$

$3x^2+6xy+3y^2$

$=3x^2+3y^2+6xy-5x-5y+2$

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3 years ago

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Charra [1.4K]

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3 years ago