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just olya [345]
4 years ago
13

Enter an equation for the function. Give your answer in the form a(b)". In the event that a = 1, give your

Mathematics
1 answer:
Anna [14]4 years ago
8 0

Answer:

r(n)=14,000(0.50)^n

Step-by-step explanation:

we know that

The equation of a exponential decay function is equal to

r=a(1-r)^n

where

r is the number of bacteria remaining

n is the number of hours since the  antibiotic was applied

a is the initial value

r is the rate of change

we have

a=14,000\ bacteria\\r=50\%=50/100=0.50

substitute

r(n)=14,000(1-0.50)^n

r(n)=14,000(0.50)^n

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What pattern is represented by the polynomial ?
Ymorist [56]

Answer:

choice C. Perfect square trinomial is correct.

Step-by-step explanation:

We need to find the pattern which is represented by the polynomial 4x^2+12x+9.

To find that pattern, we need to factor 4x^2+12x+9

4x^2+12x+9

=4x^2+6x+6x+9

=2x(2x+3)+3(2x+3)

=(2x+3)(2x+3)

=(2x+3)^2

which is a perfect square.

Hence choice C. Perfect square trinomial is correct.

8 0
3 years ago
What is the slope?<br> Please help!!!
adell [148]
Check the picture below.

8 0
3 years ago
(x+4) (x+7) find product<br>​
nataly862011 [7]

Answer:

x2+11x+28    

Step-by-step explanation:

Thus, (x+7)(x+4) multiplies out to x2+4x+7x+28, which can be simplified to        

                                                     x2+11x+28

6 0
4 years ago
Read 2 more answers
The captain of a boat knows that a lighthouse on the coast is 100 ft. tall. If he measures the angle of elevation to be 2 degree
faltersainse [42]

Answer and Step-by-step explanation:

           | \

           |   \

           |      \

           |         \

           |            \

100 ft.  |              \

           |         2     \

           |_________\

                    x

Use tangent to find the x.

tan(2) = \frac{100}{x}

x = \frac{100}{tan(2)}

Use a calculator to evaluate.

x = \frac{100}{tan(2)} = 2863.6253

So, the boat is 2,863.63 feet from the shore.

#teamtrees #WAP (Water And Plant)

6 0
3 years ago
Describe a real-world situation that can be represented using a table and graph.
OverLord2011 [107]
Besides just using the math in everyday life, it is also used in newspapers.
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3 years ago
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