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katrin2010 [14]
2 years ago
12

Janine has 86 hockey cards in one book and 105 hockey cards in another book. The hockey cards come in packages of 5 cards. If Ja

nine bought all of her hockey card in packages, how many packages did she buy?
Mathematics
1 answer:
wel2 years ago
8 0

Answer:

ur pfp... pls get help NOWWW

Step-by-step explanation:

pls stop this madness

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If 3 to the power of x+1 = 81 and 81 to the power of x-y = 3 then what is the value of x and y?
fgiga [73]
From 1st condition:

3^(x+1)=81
Take log on both sides,
➡ log [3^(x+1)]=log81
Use the property: log(x^a)=a logx
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➡ (x+1) log 3=4×log 3
➡ (x+1)=4 (log 3 /log 3)
➡ x+1=4
➡ x=3➡↪➡↪ ANS

From 2nd condition, (Same process are repeated)

81^(x-y)=3
➡ 3^4(x-y)=3
➡ log [3^4(3-y)]=log 3
➡ 4(3-y) log 3=log 3
➡ (3-y)=(log 3)/(4log 3)
➡ 3-y=(1/4)
➡ y=11/4 ➡↪➡↪ ANS
4 0
2 years ago
Please help me i dont know what i am doing
Olenka [21]

Answer:

  1. answer is 1.25
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Is AB a tangent why or why not??​
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Answer:

As angle B is a right triangle, the sides AB and CB are perpendicular to each other. From the property of all tangents to a circle given in the beginning it can be concluded that AB is a tangent of the circle

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Step-by-step explanation:

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