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kolbaska11 [484]
3 years ago
7

To estimate 103% of 63, Rich rounded 103% down to 100%, 63 down to 60, and multiplied 60 by 1 to get 60. Which of these statemen

ts is correct?
Rich’s estimate is reasonable because it should be less than 63.
Rich’s estimate is unreasonable because it should be exactly 63.
Rich’s estimate is unreasonable because it should be less than 63.
Rich’s estimate is reasonable because it should be greater than 63.
Mathematics
1 answer:
MrRissso [65]3 years ago
8 0

Answer:

D.     Rich’s estimate is reasonable because it should be greater than 63.

Step-by-step explanation:

Because 103% of 63 is 64.89 which means it would be greater than 63.

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Matt invests $1,669 in a saving account with a fixed annual interest rate of 2% compounded 12 times per year. How long will it t
vesna_86 [32]

Answer:

It will take 4.84 years

Step-by-step explanation:

The initial amount that Matt invested was $1669. It means that principal is

P = 1669

It was compounded 12 times per year. So

n = 12

The rate at which the principal was compounded is 2%. So

r = 2/100 = 0.02

The formula for compound interest is

A = P(1+r/n)^nt

A = total amount in the account at the end of t years.

A = 1,844.38

Therefore

1,844.38 = 1669(1+0.02/12)^(12×t)

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1.1051 = (1.0017)^(12t)

Taking log to base 10 of both sides, it becomes

Log 1.1051 = log 1.0017^(12t)

Log 1.1051 = 12tlog 1.0017

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6 0
3 years ago
How do I solve this?
Snowcat [4.5K]
M>B = 65 so arc AC = 2(65) = 130
arc ABC = 360 - 130 = 230

m<D  = 1/2(230 - 130)
m<D = 1/2(100) = 50

answer
m<D = 50 first choice
6 0
3 years ago
Can somebody help me out ??
julia-pushkina [17]
Answer: y = -3/2x -5

explanation:
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7 = -3/2(-8)+b
7= 12 +b
subtract 12 on both sides
-5 = b

y = -3/2x - 5
3 0
3 years ago
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