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Anit [1.1K]
2 years ago
12

Please help me!! Picture attached!!

Mathematics
2 answers:
DiKsa [7]2 years ago
6 0
1. 4/3 and 1 1/3 because they are equivalent to each other
2. 1 & 2/3 because it is only one third away and the others are two thirds away
3. 1 & 1/2
4. 3
5. 1
Sever21 [200]2 years ago
3 0

Answer:

1. 4/3, and 1 & 1/3   2. 1 & 2/3    3. I D K.    4. 3

5. 1

Step-by-step explanation:

1. because 4/3 is the same as 1 & 1/3, they are the same because if you take the 4 and make it a 3, it is 1 whole, and then you put 1/3 at the end, because the is still a left over 1/3.    2. I know this because 2/3 is bigger than 1/3, and 4/3 is equal to 1 & 1/3.

Hope this helped,  I am so sorry, I couldn't figure out 3! : (

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The point (0, 4) is located
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Answer:

it would be on y-4.

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Darcy and Leah are looking at some fabric selections in a store. All of the selections are marked the same price, and the amount
alex41 [277]

We know that the price of all the fabrics is the same. However, the length of the fabrics is different. We have to determine which fabric is the longest.

Option A: \frac{43}{5}  = 8.6

Option B: \frac{33}{4} = 8.25

Option C: \frac{78}{9} = 8.6667

Option D: \frac{22}{3} = 7.33....

Hence, the longest fabric is the one given in option C, and its length is 8.6667

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2 years ago
Read 2 more answers
Jim did 35 push-ups on Saturday, 42 push-ups on Sunday, 49 push-ups on Monday, and 56 push-ups on Tuesday. What kind of sequence
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Answer:

increasing sequence of +7

Step-by-step explanation:

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8 0
2 years ago
Let F: R → R be defined by f(x) = x”. Show that f'is one-to-one and onto.​
Brrunno [24]

Answer:

both

Step-by-step explanation:

3 0
2 years ago
PLEASE HELP ME I BEG I WILL GIVE BRAINLIEST
ohaa [14]

Answer:

Mean = (2.2 + 2.4 + 2.5 + 2.5 + 2.6 + 2.7)/6 = 2.48

Standard deviation = √(summation(x - mean)²/n

n = 6

Summation(x - mean)² = (2.2 - 2.48)^2 + (2.4 - 2.48)^2 + (2.5 - 2.48)^2 + (2.5 - 2.48)^2 + (2.6 - 2.48)^2 + (2.7 - 2.48)^2 = 0.1484

Standard deviation = √(0.1484/6

s = 0.16

Standard error = s/√n = 0.16/√6 = 0.065

Part B

Confidence interval is written as sample mean ± margin of error

Margin of error = z × s/√n

Since sample size is small and population standard deviation is unknown, z for 98% confidence level would be the t score from the student t distribution table. Degree of freedom = n - 1 = 6 - 1 = 5

Therefore, z = 3.365

Margin of error = 3.365 × 0.16/√6 = 0.22

Confidence interval is 2.48 ± 0.22

Part C

We would set up the hypothesis test. This is a test of a single population mean since we are dealing with mean

For the null hypothesis,

H0: µ = 2.3

For the alternative hypothesis,

H1: µ > 2.3

This is a right tailed test

Since the number of samples is small and no population standard deviation is given, the distribution is a student's t.

Since n = 6

Degrees of freedom, df = n - 1 = 6 - 1 = 5

t = (x - µ)/(s/√n)

Where

x = sample mean = 2.48

µ = population mean = 2.3

s = samples standard deviation = 0.16

t = (2.48 - 2.3)/(0.16/√6) = 2.76

We would determine the p value using the t test calculator. It becomes

p = 0.02

Assuming significance level, alpha = 0.05.

Since alpha, 0.05 > than the p value, 0.02, then we would reject the null hypothesis. Therefore, At a 5% level of significance, the sample data showed significant evidence that the mean absolute refractory period for all mice when subjected to the same treatment increased.

Step-by-step explanation:

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