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3 years ago

Expand and simplify (x 3)(x 3)

Mathematics

2 answers:

luda_lava [24]3 years ago

7 0

X+x=2x
3+3=6
2x+6
answer=2x+6

DiKsa [7]3 years ago

7 0

(x 3)(x 3)

x^2 3^2
3*3=9
9x^2

I hope I helped!

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4 years ago

: Find the approximate perimeter of the isosceles triangle A OPD.

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Answer:

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Step-by-step explanation:

The picture of the question in the attached figure

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the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

step 1

Find the distance OP

we have

O(7,-6),P(1,-6)

substitute in the formula

$d=\sqrt{(-6+6)^{2}+(1-7)^{2}}$

$d=\sqrt{(0)^{2}+(-6)^{2}}$

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step 2

Find the distance PD

we have

P(1,-6),D(4,3)

substitute in the formula

$d=\sqrt{(3+6)^{2}+(4-1)^{2}}$

$d=\sqrt{(9)^{2}+(3)^{2}}$

$d_P_D=\sqrt{90}\ units$

step 3

Find the distance OD

we have

O(7,-6),D(4,3)

substitute in the formula

$d=\sqrt{(3+6)^{2}+(4-7)^{2}}$

$d=\sqrt{(9)^{2}+(-3)^{2}}$

$d_O_D=\sqrt{90}\ units$

step 4

Find the perimeter

$P=6+\sqrt{90}+\sqrt{90}$

$P=6+9.49+9.49=24.98\ units$

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