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Solnce55 [7]
3 years ago
9

Ayúdenme con estos problemas :(

Mathematics
1 answer:
Svetradugi [14.3K]3 years ago
4 0
En la primera tiñes que poner un tres en la parte de abajo y subir 5 para ariba y as lo mismo con los demás pero con los números que te ensaña espero esto te ayudo
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Hi, can you help me answer this question please, thank you!
n200080 [17]

As your testing H0:p=0.79, then you have a two-tailed test.

The p-value at two-tailed test is given by:

\begin{gathered} p=P(Z\leq-z)+P(Z\ge z) \\ p=P(Z\leq-z)+(1-P(Z\leq z) \\ p=2P(Z\leq-z) \\ 0.79=2P(Z\leq-z) \\ P(Z\leq-z)=\frac{0.79}{2} \\ P(Z\leq-z)=0.395 \end{gathered}

Then, you need to check into the standard normal cumulative table to find at which -z you do have a probability of 0.395. Thus:

As you can see in the picture at z=-0.26 you have a P(Z<=-z)=0.3974

And at z=-0.27 you have a P(Z<=-z)=0.3936.

The average of these values is:

\frac{0.3974+0.3936}{2}=0.3955

Then, you have a probability of 0.395 at a z of:

\frac{-0.26+(-0.27)}{2}=-0.265

Then -z=-0.27, thus z=0.27

5 0
1 year ago
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
Graph y=0.4x............................
Leto [7]

Answer:

Look at the image below

8 0
4 years ago
Read 2 more answers
Liam descended from the summit of K2 (elevation= 28,251.31 feet) to an elevation of 23,201.06 feet. How many feet did Liam desce
saul85 [17]
Laim descended 5,050.25 feet and his elevation changed by -5,050.25.
6 0
4 years ago
Nancy invested $6000 in a bond at a yearly rate of 3%. She earned $450 interest. How long was the money invested?
4vir4ik [10]

Part 1 :
She invested $6000 in a bond. (So She Has $6000) , at a yearly rate of 3% ,

Part 2 : 
She earned $450 in Interest. How long was the money invested?

At a yearly rate of 3% She earned $450.  What Sum/Total/addition/and division problem add these to ratio's up?

It should come to about a 2 year Savings account , for interest.

Dose this help?


3 0
3 years ago
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