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MArishka [77]
3 years ago
13

sierra wants to run a total of 5 1/2 miles. Each lap around the track is 1/4 mile. How many laps around the track does sierra ne

ed to run to complete 5 1/2 miles​
Mathematics
1 answer:
icang [17]3 years ago
5 0

Answer:

She has to run 22 laps around the track.

Step-by-step explanation:

It is 22 laps because each mile means 4 laps on the track and 5 miles multiplied by 4 laps it 20 laps to do 5 miles, and then 1/2 mile times two is 2/4 which is 2 laps. 2 plus 20 is 22 laps.

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A block of wood measures 9.5 inches by 1.5 inches by 8 inches. What is the volume of the block of wood?
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3 years ago
The weights of soy patties sold by Veggie Burgers Delight are normally distributed. A random sample of 15 patties yields a mean
Elden [556K]

Answer:

t=\frac{3.8-4}{\frac{0.5}{\sqrt{15}}}=-1.549    

Step-by-step explanation:

Data given and notation  

\bar X=3.8 represent the sample mean

s=0.5 represent the sample standard deviation for the sample  

n=15 sample size  

\mu_o =4 represent the value that we want to test

\alpha represent the significance level for the hypothesis test.  

t would represent the statistic (variable of interest)  

p_v represent the p value for the test (variable of interest)  

State the null and alternative hypotheses.  

We need to conduct a hypothesis in order to check if the mean weight is less than 4 ounces, the system of hypothesis would be:  

Null hypothesis:\mu \geq 68  

Alternative hypothesis:\mu < 4  

If we analyze the size for the sample is < 30 and we don't know the population deviation so is better apply a t test to compare the actual mean to the reference value, and the statistic is given by:  

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}  (1)  

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".  

Calculate the statistic

We can replace in formula (1) the info given like this:  

t=\frac{3.8-4}{\frac{0.5}{\sqrt{15}}}=-1.549    

3 0
3 years ago
Find the area of a circle with (a) a radius of 9.2 centimeters and (b) a diameter of 50.5 inches.
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The area of a square is calculated by squaring the length of one side of the square. Which graph represents this situation?
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4 0
3 years ago
Read 2 more answers
PLS HELP ASAP!!
zepelin [54]

Answer:

D

Step-by-step explanation:

A = P(1 + \frac{r}{n})^{nt}\\

[5000* (1+0.125)]/12 =234.375, rounds up to $234.38

8 0
3 years ago
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