The total number of laps needed to complete a bike marathon is 75. Kayla completed at least 68 laps. How many possible complete laps could Kayla have completed. Please show work. I'm offering lots of points for this question. Thanks you guys.

Answers

Answer 1

Answer: well she needs to complete 75 laps to complete the race so 75 is the upper limit. She has completed at least 68 laps so the lower limit is 68. so the number of laps she could have completed could be from 68 to 75 so the number of laps (x) can be reprented by this inequallity 68 < x < 75

Answer 2

Answer: well, I'm not sure if this is correct, it probably isn't, and I'm sorry if it isn't, but i think kayla could have completed 75 laps because there was only 75 laps in the race.

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The Mill Valley Brewery produces 32 ounce bottles of beer. The Bureau of Weights and Measures randomly selects 50 of these bottles, measures their contents, and obtains a sample mean of 31.8 oz and a sample standard deviation of 0.75 oz. At the 5% level, is there evidence that Mill Valley Brewery is cheating customers by under-filling their bottles?

Answers

Answer:

Since the calculated Z= -1.886 lies within the Z∝ = ± 1.96 we fail to reject our null hypothesis that population mean is 31.8 oz. and not 32 ounces. There is evidence that Mill Valley Brewery is cheating customers by under-filling their bottles.

Step-by-step explanation:

Let the null hypothesis be

H0 : u = 31.8 oz against Ha: u ≠ 31.8 oz two tailed test

For a two tailed test and alpha = 0.05 the z∝ = ± 1.96

The rejection region is Z ≥ ± 1.96

Here n = 50

sample mean = x= 31.8 oz

and sample standard deviation= s= 0.75

Population mean= u= 32

Test statistics to be used is

Z= x- u / s/ √n which is approximately normal

Z= 31.8-32/0.75/ √50

z= -1.886

Find the length of the third side. If necessary, write in simplest radical form.

Answers

Answer:

$√(13)$

Step-by-step explanation:

let the 3rd side, the hypotenuse, be x

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

x² = 2² + 3² = 4 + 9 = 13 ( take square root of both sides )

x = $√(13)$

Answer:

√13 or 3.6

Step-by-step explanation:

It is a right triangle and you have the measure of the cathets, we use the Pythagorean theorem

√(3² + 2²) =

√(9 + 4) =

√13

Dylan is at a fruit farm. So far he has 12 apples, Dylan starts walking and checks his basket, he only has 2 apples now. How many apples did Dylan lose?

Answers

on his way walking dylan lost atleast 10 apples

While doing his homework, brian thought about the football game, which is why he made a mistake. instead of raising a number to the second power she doubled it. his two digit awnser had the same digits as the correct awnser but in reverse order.What was the correct answer to Brian's math problem? a) 24 b) 25 c) 36 d) 49

Answers

the answer to this problem is b)25c

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