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zubka84 [21]
3 years ago
12

Suppose one person sends a letter to seven people, and the following week those seven people send a letter to seven other people

. If this pattern continues, how many letters will be sent out on the fifth week?
Mathematics
1 answer:
klio [65]3 years ago
7 0
I'm pretty sure it's 35 

7x5=35
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What is the HCF of 36,60,84?​
eimsori [14]
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5 0
2 years ago
Expand and simplify (y-3)³​
Tanya [424]

Answer:

Expanded: (y-3)(y-3)(y-3)

Simplified:  y^{3}-9y^{2}+27y-27

Step-by-step explanation:

Expanded: (y-3)(y-3)(y-3)

Simplified:

y^{2} -3y-3y+9(y-3)\\y^{2} -6y+9(y-3)

y^{3} -3y^{2}-6y^{2}  +18y+9y-27

y^{3}-9y^{2} +27y-27

5 0
3 years ago
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lawyer [7]
1- 13 or -13 (B)

2- -5 < y < -3 (A)

3- t = 6 or -6 (B)

Hope this helps you =)
7 0
2 years ago
Maria invests $6,154 in a savings account with a fixed interest rate of 8% compounded continuously. What will the account balanc
Vitek1552 [10]

Answer:

$13,695.98

Step-by-step explanation:

We can use the continuous compound interest formula to solve:

A = Pe^{rt}

<em>P = principal amount</em>

<em>r = interest rate (decimal)</em>

<em>t = time (years)</em>

<em />

First, lets change 8% into a decimal:

8% -> \frac{8}{100} -> 0.08

Now, lets plug in the values:

A=6,154e^{0.08(10)}

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The account balance after 10 years will be $13,695.98

3 0
3 years ago
The temperature was 61 degrees at sunrise.
Olin [163]
The answer would be 73 degrees because 62 +12 = 73
5 0
3 years ago
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