Step-by-step explanation:
3^-n=0.2
1/3^n=0.2
1=0.2(3^n)
3^n=1/0.2
3^n=5
(3^n)²=5²
(3^n)²=25
Answer:
62 degrees
Step-by-step explanation:
180 = x + 118
180 - 118 = x
62 = x
Hey there!
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~ Zoe
Answer:
Step-by-step explanation:
We have 
23 x 36 mod 5 = 3 (since unit digit is 8)
23x36 mod 11 =3
Since 5 and 11 are prime we get
23x36 mod 55 = 3 mod 55
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b) 91 = 13 x7
29x51 mod 91 =23
Answer:
Sally is 30 and Suki is 20
Step-by-step explanation:
x = Sally's age
y = Suki's age
x = 10 + y
(x - 5) + (y - 5) = 40
x = 30, y = 20
