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denpristay [2]
3 years ago
14

A scientist studying bacteria begins with 20 cells. The bacteria population doubles every hour. Complete the table below to dete

rmine after how many hours there will be more than 500 bacteria cells. Time (hours) Number of bacteria cells 0 20 1 40 2 80 3 4 5 6 Write an exponential function to model this situation. Predict the bacteria population after 11 hours.
Mathematics
1 answer:
pantera1 [17]3 years ago
3 0

Answer:

80

Step-by-step explanation:

40+40=80

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Pls explain your answer
spayn [35]

Yo sup??

this is of the form called slope and point... hence

y-11=-4(x+2)

therefore the correct answer is option A

Hope this helps

8 0
3 years ago
Henry has a rope that is 9 meters long. He cuts away a plece that is 1.31 meters long. How long is the remaining plece of rope?
Blababa [14]
Take 9 and subtract 1.31. It equals 7.69 meters
3 0
3 years ago
Read 2 more answers
A ball is thrown and the path of the ball is represented by the equation y = -x2 + 7x + 7. What is the rate of change between x
frozen [14]

Answer: I’m not sure I’m sooo sorry

3 0
3 years ago
The product of c and 2
Arlecino [84]

Answer:

c2?

Step-by-step explanation:

3 0
3 years ago
in 1991, a gallup poll reported this percent to be 79%. using the data from this poll, test the claim that the percent of driver
snow_lady [41]

We reject our null hypothesis, H₀, at a level of significance of =0.01 since the P-value is less than that threshold. There is compelling statistical data to indicate that since 1991, the proportion of drivers who love driving has decreased.

Given,

The Pew Research Center recently polled n=1048 U.S. drivers and found that 69% enjoyed driving their automobiles.

In 1991, a Gallup poll reported this percentage to be 79%. using the data from this poll, test the claim that the percentage of drivers who enjoy driving their cars has declined since 1991.

To report the large-sample z statistic and its p-value,

Null hypothesis,

H₀ : p = 0.79

Alternative hypothesis,

Ha : p < 0.79

Level of significance, α = 0.01

Under H₀

Test statistic,

Z_0= \frac{\hat p - p}{\sqrt{\frac{p(1-p)}{n} }  }

Z₀ = -7.948

The alternative hypothesis(Ha) is left-tailed, so the P-value of the test is given by

P-value = P(z <-7.945)

            = 0.000     (from z-table)

Since the P-value is smaller than given level of significance, α=0.01 we reject our null hypothesis, H₀, at α=0.0.1 level Strong statistical evidence to conclude that the percentage of drivers who enjoy driving their cars has declined since 1991.

To learn more about hypothesis click here:

brainly.com/question/17173491

#SPJ4

5 0
1 year ago
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