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2 years ago

Mark's soup recipe makes 6 servings and uses 4 carrots and 2 potatoes. How many carrots and how many potatoes?

Mathematics

1 answer:

alukav5142 [94]2 years ago

4 0

6 X 4= 24 is the amount of carrots
6 X 2= 12 is the amount of potatoes
6 X 6= 36 is the total

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Explain the function of Chromosomes. Use your knowledge of genes and DNA to<br> give your answer.

Galina-37 [17]

Answer:

chromosomes are of two in human x and y but the mother has only x chromosomes when xand x meet then baby girl is born and when x and y meet then baby boy is born.Genes is the properties which are present in all living organisms.The full form of DNA is deoxy ribonucleic acid.It is the properties which carries the similarities of both mother and father to a new generation.

4 0

2 years ago

A market research analyst claims that 32% of the people who visit the mall actually make a purchase. You think that less than 32

Rainbow [258]

Answer:

E. -1.48

Step-by-step explanation:

The test statistic is:

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the expected value, $\sigma$ is the standard deviation and n is the size of the sample.

A market research analyst claims that 32% of the people who visit the mall actually make a purchase.

This means that:

$\mu = 0.32$

$\sigma = \sqrt{0.32*0.68} = 0.4665$

You stand by the exit door of the mall starting at noon and ask 82 people as they are leaving whether they bought anything. You find that only 20 people made a purchase.

This means that $n = 82, X = \frac{20}{82} = 0.2439$

The value of the test statistic is about:

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$t = \frac{0.2439 - 0.32}{\frac{0.4665}{\sqrt{82}}}$

$t = -1.48$

So the correct answer is given by option E.

3 0

3 years ago

10.The function f(x) is shown below:

Tom [10]

A. -f(1)=1,f(2)=2,f(n)=2f(n-1)f(n-2);n>2

7 0

2 years ago

74.80 decreased by 45%

ASHA 777 [7]

Use a multiplication problem of 74.80*0.45, and you get an answer of <span>33.66.

</span>

3 0

3 years ago

The inspection division of the Lee County Weights and Measures Department is interested in estimating the actual amount of soft

cluponka [151]

Answer:

The 98% confidence interval estimate of the true average amount of soft drink in each bottle is between 2.97 liters and 3.01 liters.

Step-by-step explanation:

We have the standard deviation for the sample, so we use the t-distribution to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 64 - 1 = 63

98% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 63 degrees of freedom(y-axis) and a confidence level of $1 - \frac{1 - 0.98}{2} = 0.99$ . So we have T = 2.387

The margin of error is:

$M = T\frac{s}{\sqrt{n}} = 2.387\frac{0.06}{\sqrt{64}} = 0.02$

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 2.99 - 0.02 = 2.97 liters

The upper end of the interval is the sample mean added to M. So it is 2.99 + 0.02 = 3.01 liters

The 98% confidence interval estimate of the true average amount of soft drink in each bottle is between 2.97 liters and 3.01 liters.

7 0

2 years ago