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3 years ago

I have the other two answers. i just need the maximum height. please

Mathematics

1 answer:

Alex777 [14]3 years ago

5 0

You have the maximum height happens at 5 seconds.

Replace t with 5 and solve for h(t):

h(5) = -0.2(5)^2 + 2(5)

h(5) = -0.2(25) + 10

h(5) = -5+10

h(5) = 5

The maximum height is 5 feet.

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"Kevin works for Outrageous Burger, a nationwide fast-food chain, but his job does not involve flipping patties or making fries.

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Answer:

series of directions for a training script

Step-by-step explanation:

Kevin is writing a series of directions for a training script. These directions will teach employees that have just been hired the step by step process on how to create the burgers at Outrageous Burgers. This way the new employees know exactly how the fast-food chain makes their burgers and they will be prepared to perform their responsibilities when customers start to come in and they are left by themselves. The training script is basically a resource for new hires.

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3 years ago

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Answer:

C is 27 and d is 16

Step-by-step explanation:

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1 year ago

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Answer:

Step-by-step explanation:

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3 years ago

The USDA conducted tests for salmonella in produce grown in California. In an independent sample of 252 cultures obtained from w

Marat540 [252]

Answer:

The decision rule is

Fail to reject the null hypothesis

The conclusion is

There no sufficient evidence to show that the proportion of salmonella in the region’s water differs from the proportion of salmonella in the region’s wildlife

Step-by-step explanation:

From the question we are told that

The first sample size is $n_1 = 252$

The number that tested positive is $k_1 = 18$

The second sample size is $n_2 = 476$

The number that tested positive is $k_2 = 20$

The level of significance is $\alpha = 0.01$

Generally the first sample proportion is mathematically represented as

$\^ p _1 = \frac{k_1 }{ n_1 }$

=> $\^ p _1 = \frac{18 }{ 252 }$

=> $\^ p _1 = 0.071$

Generally the second sample proportion is mathematically represented as

$\^ p _2 = \frac{k_2 }{ n_2 }$

=> $\^ p _2 = \frac{20 }{ 476}$

=> $\^ p _2 = 0.042$

The null hypothesis is $H_o : p_1 - p_2 = 0$

The alternative hypothesis is $H_a : p_1 - p_2 \ne 0$

Generally the test statistics is mathematically represented

$z = \frac{ \^ p_1 - \^ p_2 - ( p_ 1 - p_2 )}{ \sqrt{\frac{\^ p_1 (1-\^ p_1)}{ n_1 } + \frac{\^ p_2 (1-\^ p_2)}{ n_2 } } }$

=> $z = \frac{ 0.071 - 0.042 - 0 }{ \sqrt{\frac{0.071 (1-0.071)}{ 252 } + \frac{0.042 (1-\^ 0.042)}{ 476 } } }$

=> $z = 1.56$

From the z table the area under the normal curve to the right corresponding to 1.56 is

$P(Z > 1.56 ) =0.05938$

Generally the p-value is mathematically represented as

$p-value = 2 * P(Z > 1.56 )$

=> $p-value = 2 * 0.05938$

=> $p-value = 0.1188$

From the value obtained we see that $p-value > \alpha$ hence

The decision rule is

Fail to reject the null hypothesis

The conclusion is

There no sufficient evidence to show that the proportion of salmonella in the region’s water differs from the proportion of salmonella in the region’s wildlife

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2 years ago