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GaryK [48]
2 years ago
7

Find the measurement of n please.

Mathematics
2 answers:
Lady bird [3.3K]2 years ago
8 0
I don’t know how to do any of this
mezya [45]2 years ago
6 0
I think it’s C if you still need an answer but don’t trust me on that
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What number us 17 less than the product of 7 and 11
m_a_m_a [10]

77 is the product of 7 and 11 (Multiply them)

77 - 17 = 60

Hope this helped!

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3 years ago
Hich rule about the sign of the quotient of positive and negative decimals is correct?
MrRissso [65]
B is the right answer
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Read 2 more answers
A bacteria culture starts with 12,000 bacteria and the number doubles every 50 minutes.
Vlada [557]

Answer:

a)  y=12000(2)^{\frac{t}{50}}

b)  Approx. 27,569 bacteria

c)  About 103 minutes

Step-by-step explanation:

a)

This will follow exponential modelling with form of equation shown below:

y=Ab^{\frac{t}{n}}

Where

A is the initial amount (here, 12000)

b is the growth factor (double, so growth factor is "2")

n is the number of minutes in which it doubles, so n = 50

Substituting, we get our formula:

y=Ab^{\frac{t}{n}}\\y=12000(2)^{\frac{t}{50}}

b)

To get number of bacteria after 1 hour, we have to plug in the time into "t" of the formula we wrote earlier.

Remember, t is in minutes, so

1 hour = 60 minutes

t = 60

Substituting, we get:

y=12000(2)^{\frac{t}{50}}\\y=12000(2)^{\frac{60}{50}}\\y=12000(2)^{\frac{6}{5}}\\y=27,568.76

The number of bacteria after 1 hour would approximate be <u>27,569 bacteria</u>

<u></u>

c)

To get TIME to go to 50,000 bacteria, we will substitute 50,000 into "y" of the equation and solve the equation using natural logarithms to get t. Shown below:

y=12000(2)^{\frac{t}{50}}\\50,000=12,000(2)^{\frac{t}{50}}\\4.17=2^{\frac{t}{50}}\\Ln(4.17)=Ln(2^{\frac{t}{50}})\\Ln(4.17)=\frac{t}{50}*Ln(2)\\\frac{t}{50}=\frac{Ln(4.17)}{Ln(2)}\\\frac{t}{50}=2.06\\t=103

After about 103 minutes, there will be 50,000 bacteria

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How do you divide decimals?
MakcuM [25]
You use long division to divide decimals
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What is: Y+ 4x= 4 Y= -4x + 2
Tom [10]
The answer to this + 2
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2 years ago
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