2 answers:
Answer:
x= 20
Step-by-step explanation:
81^5 = 3^x
(3^4)^5= 3^x
<em>3</em>^20= <em>3</em>^x
20= x
therefore 81^5= 3^20
Answer:
20
Step-by-step explanation:
81 ^5 =3 ^x
(3 ^4) ^5 =3 ^x
3 ^(4×5) =3 ^x
3 ^20 =3 ^x
x=20
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The answer is B. 5
6+2=8
3+5=8
Answer:
√308 or 17.5
Step-by-step explanation:
c^2=a^2+b^2
c^2-a^2=b^2
Substitute
18^2-4^2=b^2
324-16=b^2
b^2=308
b=√308 or b=17.5
Good for Julie! Is there a question that comes with this post?
-TTL
