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Kaylis [27]
2 years ago
8

Whats 5578 ÷ 68 equal to

Mathematics
2 answers:
kramer2 years ago
7 0

5578/68=82.029411764705882352941176470588

that would be rounded  to 82.02 which is the answer

skad [1K]2 years ago
6 0

Answer:

2789/34 or ~ 82.03

Step-by-step explanation:

5578 and 68 is divisible of 2. Therefore, the numerator and denominator would be 2789/34 after dividing by 2 for both the numerator and denominator.

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With a perfectly balanced roulette wheel, in the long run, red numbers should turn up 18 times in 38. To test its wheel, one cas
topjm [15]

Answer:

a) more than 18/38

b) The null says that the percentage of reds in the box is 2842.105. The alternative says that the percentage of reds in the box is -0.933521

c) z= -0.933521 , p≤ z= 17.105%

d) p-value is 17%

Step-by-step explanation:

1. We are counting the number of reds, so we have a box with "1" s for reds and "0"s for others. The question is what proportion of 1's and 0' are in the box.

a) The null hypothesis is that the wheel is balanced, so the box contains 18 "1"s and 20 "0"s. Or you might state this in terms of the proportion of 1's (18/38) and 0's (20/38). The alternative hypothesis if that the wheel favors reds, so the proportion of 1's is more than 18/38.

b) Under the null hyp., we expect 6000*(18/38)= 2842.105 Reds. The SE is sqrt(6000)* SD(Box)= Sqrt(6000)*(1-0)*sqrt((18/38)*(20/38))= 38.67615. We observed2806, which is fewer than we expected. The question is , is it much fewer that we suspect foul play, or it is the usual sort of variation we expect due to chance? The test statistic is z=(obs-expected)/SE =(2806-2842.105)/38.67615= -0.933521.

c) The p-value is the probability of gettinga test statistic as extreme or morer extreme than this, which in this case means seeing a test statistic less than or equal to - 0.933521. The closest value gives a probability of (100-65.79)/2 = 17.105%

d) If we reject H0 and claim the roullette wheel is unfair, then there's a 17.105% chance we are wrong. This is a large probability of making a serious mistake, and it would be reasonable to not reject and conclude that there is insufficient evidence to suspect the wheel is unfair. (we would reject H10 if the p-value were less than 5%. Since it is 17%, we won't reject)

6 0
2 years ago
Question 1(Multiple Choice Worth 2 points)
earnstyle [38]
These are 3 questions and 3 answers.

1) Find


\lim_{x \to \ 2^+} f(x)

Answer: 4.

Explanation:

The expression means the limit as the function f(x) approaches 2 from the right.

Then, you have to use the function (the line) that comes from the right of 2 and gets as close as you want to x = 2.

That is the line that has the open circle around y = 4, and that is the limit searched.

2) Use the graph to determine the limit if it exists.

Answer:

\lim_{x \to \ 2^-} f(x) = 3

\lim_{x \to \ 2^+} f(x)=-3

To determine each limit you use the function from the side the value of x is being approached.

Note, that since the two limits are different it is said that the limit of the function as it approaches 2 does not exist.

3) 
Answer: - 1


\lim_{x \to \ 3^-} f(x) = -1

To find the limit when the function is approached to 3 from the left you follow the line that ends with the open circle at (3, -1).

Therefore, the limit is - 1.
5 0
2 years ago
Read 2 more answers
Which descriptions from the list below accurately describe the relationship between QRS and TUV
Nata [24]
Answer is A. similar

hope it helps
8 0
2 years ago
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Four people - Roger, Gail, Simon, and Lisa, - enter their names into a drawing. The winner receives a sweater, hat, or scarf. Th
Finger [1]

Answer:

1/3

Step-by-step explanation:

The probability of a student winning is 1/4.

The probability of a prize being selected is 1/3.

The probability of Gail winning a scarf is 1/4 × 1/3 = 1/12.

The probability of Simon winning is 1/4.

The probability of either is 1/12 + 1/4 = 1/3.

6 0
2 years ago
Which expression is equivalent to StartFraction RootIndex 7 StartRoot x squared EndRoot Over RootIndex 5 StartRoot y cubed EndRo
Lera25 [3.4K]

Answer:

Option A.

Step-by-step explanation:

The given expression is

\dfrac{\sqrt[7]{x^2}}{\sqrt[5]{y^3}}

where, y\neq 0.

We need to find the expression which is equivalent to the given expression.

The given expression can be rewritten as

\dfrac{(x^2)^{\frac{1}{7}}}{(y^3)^{\frac{1}{5}}}      [\because \sqrt[n]{x}=x^{\frac{1}{n}}]

\dfrac{x^{\frac{2}{7}}}{y^{\frac{3}{5}}}      [\because (a^m)^n=a^{mn}]

x^{\frac{2}{7}}y^{-\frac{3}{5}}      [\because a^{-n}=\dfrac{1}{a^n}]

Therefore, the correct option is A.

8 0
2 years ago
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