Factor a2 – 24a + 144. Question 15 options:

A)

(a – 12)(a – 12)

B)

(a + 12)(a + 12)

C)

(a – 6)(a – 2)

D)

(a + 72)(7a + 2)

A

Step-by-step explanation:

the the cross multiplication method

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the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

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