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3 years ago

13

please help :( please help :( please help :( please help :( please help :( please help :( please help :( please help :( please h

elp :( please help :(

2 answers:

Galina-37 [17]3 years ago

8 0

Answer:

75.43

Explanation

Just do the pi

egoroff_w [7]3 years ago

7 0

Answer:

V= π×r×r×h

DATA

π= 22÷7

r×r =4

h=6

answer= 75.43

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You are having a discussion about sequences with your classmate. She insists that the sequence 2, 3, 5, 8, 12 must be either ari

Marizza181 [45]

If arithmetic, then there is a common difference
if geometric, then there is a common ratio

to find the common ratio or difference

if you subtract successive terms from each other, they should have the same result if it is aritmetic
if you divide successive terms by each other, they should have the same result if it is geometric

2,3 and 5

3-2=1
5-3=2
2≠1
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4 0

3 years ago

A group of 54 college students from a certain liberal arts college were randomly sampled and asked about the number of alcoholic

aliya0001 [1]

Answer:

P-value = 0.4846

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 4.73

Sample mean, $\bar{x}$ = 4.35

Sample size, n = 51

Alpha, α = 0.05

Sample standard deviation, s = 3.88

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 4.73\\H_A: \mu \neq 4.73$

We use Two-tailed z test to perform this hypothesis.

Formula:

$z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

Putting all the values, we have

$z_{stat} = \displaystyle\frac{4.35 - 4.73}{\frac{3.88}{\sqrt{51}} } = -0.699$

Now, $z_{critical} \text{ at 0.05 level of significance } = \pm 1.96$

We can calculate the p-value with the help of standard normal table.

P-value = 0.4846

Since the p-value is higher than the significance level, we fail to reject the null hypothesis and accept it.

We conclude that this college has same drinking habit as the college students in general.

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4 years ago

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musickatia [10]

Answer:

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Step-by-step explanation:

2 5/8

+1 7/8= 4 1/2

7=3+4
5+3=8
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3 + 1= 4
4 + 4/8= 4 4/8
4 4/8 = 4 1/2

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3 years ago

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nlexa [21]

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