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3 years ago

Someone help me with this plzzz asapp

Mathematics

2 answers:

lord [1]3 years ago

6 0

Honestly don’t know I jus need to answer someone’s question ma bad

bazaltina [42]3 years ago

5 0

Answer:

3(25π/2) + 100 = 217.8097

Step-by-step explanation:

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A basketball is shot into a 10ft. Goal from a height of 6.5 feet. The function h= -0.875t2 + 3.5t + 6.5 represents the path of t

Galina-37 [17]

Answer: how do I graph this

Step-by-step explanation:

3 0

3 years ago

Suppose that a standardized biology exam has a mean score of 80% correct, with a standard deviation of 3. The school administrat

NemiM [27]

Answer:

The 99% confidence interval is between 62.36%(lower bound) and 89.64%(upper bound).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

A sample of 65 students from the freshmen class is used and a mean score of 76% correct is obtained.

This means that $n = 65, \pi = 0.76$

99% confidence level

So $\alpha = 0.005$ , z is the value of Z that has a pvalue of $1 - \frac{0.005}{2} = 0.995$ , so $Z = 2.575$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.76 - 2.575\sqrt{\frac{0.76*0.24}{65}} = 0.6236$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.76 + 2.575\sqrt{\frac{0.76*0.24}{65}} = 0.8964$

0.6236*100 = 62.36%

0.8964*100 = 89.64%

The 99% confidence interval is between 62.36%(lower bound) and 89.64%(upper bound).

6 0

2 years ago

Are American miles the same distance as U.K. miles?

MatroZZZ [7]

Answer:

yes they are

Step-by-step explanation:

because the metric system is the same

6 0

2 years ago

The U.S. Senate has 100 members. After a certain election, there were 16 more Democrats than Republicans, with no other partie

mixer [17]

Answer:

34 Republicans 66 democrats

Step-by-step explanation:

so if there are 100 members evenly split, the 2 parties would each have 50

this is the starting point you add 16 to the democratic side resulting in 66 but then you take 16 from the Republican side making it 34

3 0

3 years ago

The cost of 1 m ribbon is ₹ 75. Find the cost of 7/5 metres of ribbon

Margaret [11]

Given that

The cost of 1 m ribbon = Rs.75

The cost of 7/5 m ribbon

→ (7/5)×75

→ (7×75)/5

→7×15

→₹ 105

The cost of 7/5 m ribbon is ₹105.

8 0

2 years ago