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Brilliant_brown [7]
3 years ago
13

WILL MARK BRAINLIEST A bank manager wants to encourage new customers to open accounts with principals of at least ​$3,500. He de

cides to make a poster advertising a simple interest rate of 3​%. What must the principal be if the bank manager also wants to advertise that one can earn ​$10 the first​ month? Can the poster correctly​ say, "Open an account of ​$3,500 and earn at least ​$10 interest in 1​ month!"?
The principal needs to be ​$nothing to earn ​$10 in interest the first month.
Mathematics
2 answers:
Ket [755]3 years ago
3 0

Answer:

"Open an account of ​$3,500 and earn at least ​$10 interest in 1​ month!" is the right one

Step-by-step explanation:

Gennadij [26K]3 years ago
3 0

Answer:

He can say that. He invested 2.5K then the interest rate blah blah blah it's right if it ain't you can vote me out next round.

Step-by-step explanation:

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Suppose the mean income of firms in the industry for a year is 95 million dollars with a standard deviation of 5 million dollars
GuDViN [60]

Answer:

Probability that a randomly selected firm will earn less than 100 million dollars is 0.8413.

Step-by-step explanation:

We are given that the mean income of firms in the industry for a year is 95 million dollars with a standard deviation of 5 million dollars. Also, incomes for the industry are distributed normally.

<em>Let X = incomes for the industry</em>

So, X ~ N(\mu=95,\sigma^{2}=5^{2})

Now, the z score probability distribution is given by;

         Z = \frac{X-\mu}{\sigma} ~ N(0,1)

where, \mu = mean income of firms in the industry = 95 million dollars

            \sigma = standard deviation = 5 million dollars

So, probability that a randomly selected firm will earn less than 100 million dollars is given by = P(X < 100 million dollars)

    P(X < 100) = P( \frac{X-\mu}{\sigma} < \frac{100-95}{5} ) = P(Z < 1) = 0.8413   {using z table]

                                                     

Therefore, probability that a randomly selected firm will earn less than 100 million dollars is 0.8413.

5 0
3 years ago
What is the silk road? What happened on it? Don't copy and paste pleased In your own words pleased NO LINKS NO FILES pleased.
nevsk [136]

Answer:

The silk road was a trading route and some stuff that happened on it was trading, robbings. Some stuff that was traded was gold and silk

Step-by-step explanation:

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3 0
3 years ago
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Plot the point (−12, −52) on the coordinate plane.
irinina [24]

Answer:

Step-by-step explanation:

-12 goes on the x axis (the line that goes ⇄), and because it's negative, it will go to the right.

start from that point (-12 on the x axis) and start going down till you reach -52 on the y axis (the line that goes ⇅)

so it should end up in the bottom left part of the graph

3 0
3 years ago
How do you factor this so you can find the roots or what x equals?
Marina86 [1]
Use the rational roots test.  The possible roots are: plus/minus 6,3,2,1

Use synthetic division and you will see that 3 is a root:

3 | 1 -3 -3 11 -6
   |    3  0  -9  6
   ____________
     1 0  -3   2 0

Use rational root again, to see that possible roots are: plus/minus 2,1

Try 2:

2 | 1 0 -3 -2
   |    2  4  2       
   _____________
     1  2  1  0

The above is x^2+2x+1 which is a perfect square: (x+1)^2

So we have the final factorization: (x-3)(x-2)(x+1)^2

So the roots are: 3, 2, -1
Where -1 is a double zero.

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3 years ago
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loris [4]

Answer:

1

Step-by-step explanation:

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3

5 0
3 years ago
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