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miskamm [114]
3 years ago
11

Choose what the expressions below best represent within the context of the word problem. The length of a rectangle is 12 inches

more than its width. What is the width of the rectangle if the perimeter is 42 inches? x best represents . x + 12 best represents .
Mathematics
2 answers:
lidiya [134]3 years ago
3 0
X best represents
the width must be x so that the length can be 12+x meaning that the length is greater than length by 12
EleoNora [17]3 years ago
3 0

x represents that the width must be x so that the length can be 12+x meaning that the length is greater than length by 12.. thanks

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Approximately 0.02 Love north Atlantic lobsters are born blue color out of 5000 Atlantic lobsters how many would you expect to b
Anon25 [30]

Answer:  100 blue Atlantic lobsters

Step-by-step explanation:

Approximately 0.02 Atlantic lobsters are born blue.

0.02 in percentages is 2%.

Out of 5,000 Atlantic lobsters therefore, 2% will be born blue.

The number of blue lobsters expected is:

= 5,000 * 2%

= 100 blue Atlantic lobsters

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A tax is a restaurant charge based on a percentage of each meal price. The expression shown represents the tax on a meal price,p
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Answer:

56=90=21

Step-by-step explanation:

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3 years ago
Determine whether each argument is valid. if the argument is valid, give a proof using the laws of logic. if the argument is inv
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3 years ago
Suppose you read online that children first count to 10 successfully when they are 32 months old, on average. You perform a hypo
creativ13 [48]

Answer:

p_v =2*P(t_{(35)}  

Step-by-step explanation:

Assuming this info from R

hist(gifted$count)

##    Min. 1st Qu.  Median    Mean 3rd Qu.    Max.  

##   21.00   28.00   31.00   30.69   34.25   39.00

## Sd

## [1] 4.314887

Data given and notation  

\bar X=30.69 represent the mean  

s=4.3149 represent the sample standard deviation

n=36 sample size  

\mu_o =32 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 is different than 32, the system of hypothesis would be:  

Null hypothesis:\mu = 32  

Alternative hypothesis:\mu \neq 32  

If we analyze the size for the sample is > 30 but 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{30.69-32}{\frac{4.3149}{\sqrt{36}}}=-1.822    

P-value

The first step is calculate the degrees of freedom, on this case:  

df=n-1=36-1=35  

Since is a two sided test the p value would be:  

p_v =2*P(t_{(35)}  

7 0
3 years ago
<img src="https://tex.z-dn.net/?f=2%20%5Csqrt%7B2%7D%20" id="TexFormula1" title="2 \sqrt{2} " alt="2 \sqrt{2} " align="absmiddle
g100num [7]
Answer:

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Step-By-Step Explanation:
7 0
3 years ago
Read 2 more answers
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