3 years ago

I need help text back faster

Mathematics

1 answer:

viktelen [127]3 years ago

4 0

if the order mattered it would be 7*6*5 *4*3 = 2520 arrangements

if order didn't matter

7*6*5*4*3*2 divided by (5*4*3*2*2) = 21

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Answer:

Step-by-step explanation:

Step 3:

Let LM = x

OK = KP = 12 units [Radii of circle K]

LN = LP = 8 units [Radii of circle L]

Therefore, KL = KP + PL

KL = 12 + 8

= 20 units

Step 4:

Since, ΔKOM and ΔLNM are the similar triangles,

By the property of two similar triangles, corresponding sides of these similar triangles will be proportional.

$\frac{OK}{NL}=\frac{KM}{LM}$

$\frac{12}{8}=\frac{x+20}{x}$

12x = 8(x + 20) [By cross multiplication]

12x = 8x + 160

12x - 8x = 160

4x = 160

x = 40

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