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gregori [183]
3 years ago
10

Factor completely 6z^4 - 14z^3- 40z^2

Mathematics
1 answer:
Sav [38]3 years ago
8 0

Answer:

Step-by-step explanation:

2z^2(3z^2 - 7z - 20)

2z^2(3z + 5)(z - 4)

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Simplify 4 - 4y +y -3
umka2103 [35]

Answer:

1-4y+y

1-3y

Step-by-step explanation:

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3 years ago
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At the beginning of an experiment, the number of bacteria in a colony was counted at time t=O. The number of bacteria in the col
yan [13]

Answer:

1092

Step-by-step explanation:

We have been given that the number of bacteria in the colony t minutes after the initial count modeled by the function B(t)=9(3)^t. We are asked to find the average rate of change in the number of bacteria over the first 6 minutes of the experiment.

We will use average rate of change formula to solve our given problem.

\text{Average rate of change}=\frac{f(b)-f(a)}{b-a}

Upon substituting our given values, we will get:

\text{Average rate of change}=\frac{b(6)-b(0)}{6-0}

\text{Average rate of change}=\frac{9(3)^6-9(3)^0}{6}

\text{Average rate of change}=\frac{9(729)-9(1)}{6}

\text{Average rate of change}=\frac{6561-9}{6}

\text{Average rate of change}=\frac{6552}{6}

\text{Average rate of change}=1092

Therefore, the average rate of change in the number of bacteria is 1092 bacteria per minute.

8 0
3 years ago
Miss turns fifth-grade class her big sales on Tuesday and Thursday during lunch to raise money to buy science equipment for the
OLEGan [10]

the awer to thst is $25.55

6 0
3 years ago
What is the value of -92 – 10+ + + 2(145 – 7)?<br> не<br> d<br> ard
Ber [7]

Answer:

-92  - 10 + 2(145 - 7) + 174

Step-by-step explanation:

8 0
3 years ago
A rectangle tabletop has an area of 28 1/8 square feet and a length of 6 1/4 feet. What is the width of the tabletop?
tatuchka [14]
I believe it’s 4 1/2 . Sorry if I’m wrong
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