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PLEASE HELP!!
Examine the diagram, where AB←→ and CD←→ are secants to the circle, and they intersect inside of the circle at point P, which is not the center. What is the value of x?
A: 6
B: 5
C: 9
D: 1

PLEASE HELP Examine the diagram where AB and CD are secants to the circle and they intersect inside of the circle at point P which is not the center What is the class=

Respuesta :

evgeniylevi

Answer:

C.

Step-by-step explanation:

1) the rule is: AP*BP=CP*DP;

2) according to the rule above:

21*2x=27(x+5); ⇔ 42x=27x+135; ⇔ 15x=135; ⇔ x=9.

3) Finally, C: 9.

RevyBreeze

Answer:

x = 9

Step-by-step explanation:

AP × BP = CP × DP

21*2x=27(x+5)      {21*2x = 42x}

42x=27x+135       {27 * 5 = 135}

15x=135

Divide both sides by 15

15x/15 = 135/15

x=9.

[RevyBreeze]