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Sergeu [11.5K]
2 years ago
7

Chapter 7 need help ASAP

Mathematics
1 answer:
Elan Coil [88]2 years ago
5 0

Answer:

The answer should be that Q is (-3,-2)

Step-by-step explanation:

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For the following geometric sequence find the explicit formula {1,-3,9,...}
Zarrin [17]
The first term of this series (a+1) is 1 and the common ratio (r) is -3.

Thus, the explicit formula is a_n = 1*(-3)^(n-1).

Must check this!  suppose we try to calculate the 3rd term.  Then n = 3.

a_3 = 1*(-3)^(3-1) = (-3)^2 = 9.  This is correct.
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Blues varied directly as greens and inversely as whites squared. If there were 3 greens when there were 4 blues and 2 whites, ho
a_sh-v [17]

Step-by-step explanation:

there will be 3 greens

that is the answer

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2 years ago
Solve for k.<br> k/7 + -31= -34
Ksju [112]


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7 0
3 years ago
Solve the following by first clearing the fractions.<br><br> 1/6x+1/2=1/2x+1/2
levacccp [35]

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.166x + .5 = .5x +.5

Step-by-step explanation:

3 0
2 years ago
Georgie put $500 in her savings account, earning interest at a rate of 4% each year. She did not make any more deposits or withd
zysi [14]

Answer:

a) $520

b) $580

c) Interest amount is same each year

Step-by-step explanation:

Given - Georgie put $500 in her savings account, earning interest at a rate of 4% each year. She did not make any more deposits or withdrawals.

To find - a) How much money was in the account after one year?

              b) How much money was in the account after 4 years?

              c) Was the amount of money earned in interest the same or different each year?

Proof -

Here given that,

Principal amount = $500

rate of interest = 4% = 4/100 = 0.04

Now,

a)

Amount =  P [ 1 + RT ]

             = 500 [ 1 + 0.04(1)]

             = 500 [ 1 + 0.04] = 520

⇒Amount = $520

b)

Amount =  P [ 1 + RT ]

             = 500 [ 1 + 0.04(4)]

             = 500 [ 1 + 0.16] = 580

⇒Amount = $580

c)

In 2nd year,

Amount =  P [ 1 + RT ]

             = 500 [ 1 + 0.04(2)]

             = 500 [ 1 + 0.08] = 540

⇒Amount = $540

Now,

Interest in 1st year = 520 - 500 = 20

Interest in 2nd year = 540 - 520 = 20

So,

The interest amount  is same each year

3 0
3 years ago
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