What is the first error Zoe made in her proof? a. Zoe used an invalid reason to justify the congruence of a pair of sides or angles

b. Zoe only established some of the necessary conditions for a congruence criterion.

c. Zoe established all necessary conditions, but then used an inappropriate congruence criterion.

d. Zoe used a criterion that does not guarantee congruence

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c. Zoe established all necessary conditions, but then used an inappropriate congruence criterion.

Step-by-step explanation:

Who is your most favorite person on the leaderboard?

a.) adept

b.) mangota

c.) fatnifa

d.) thebecks

e.) dwread

f.) sqdancefan

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

: )

step-by-step explanation:

to determine whether a given function is even, we simply substitute x with -x in the expression. if the result after simplification is identical to the original equation, then the function is said to be even other wise odd.

f(-x) = (-x)^2 - (-x) + 8

      = x^2 + x +8

the resulting function is not identical to the original one;

f(-x) ≠ f(x)

therefore, f(x) is not an even function