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2 years ago

Identify the dependent variable in the statement: the speed you walk and the time it takes to complete your mile walk.

1 answer:

6 0

<span>The time it takes you to complete your mile walk is the dependent variable because it is dependent on the speed you walk.
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The Helheim glacier in Greenland enters the ocean in a 6.3 kilometer wide fjord. The terminus of the glacier retreated 7.5 kilom

vladimir1956 [14]

Answer:

7.56 km²

Step-by-step explanation:

Given data:

Width of the fjord, w = 6.3 km

Retreated terminus of the glacier between may 2001 and June 2005, d = 7.5 km

thus, the length lost , y = 7.5 - 6.3 = 1.2 km

now, the area is given as:

A = Length × width

on substituting the values, we get

A = 1.2 × 6.3

A = 7.56 km²

Hence, the surface area lost by the glacier in the fjord is 7.56 km²

7 0

2 years ago

What is the area of a triangle h=5 b=6

soldi70 [24.7K]

Answer:

The answer is 15

Step-by-step explanation:

area of triangle is half * base * height

So 1/2*5*6 is 15

6 0

2 years ago

Read 2 more answers

Y - 2x =3 Solve for Y

k0ka [10]

Answer:Add x to both sides of the equation.y=3+2x

Step-by-step explanation:

7 0

1 year ago

Read 2 more answers

A respeito dos numeros A 0,499999... E B 0,5, e correto afirmar que a)b igual a [mais] 0,011111... b) a [igua] b c) a e irracion

My name is Ann [436]

Answer:

Step-by-step explanation:

4 0

2 years ago

Of the population of all fruit flies we wish to give a 90% confidence interval for the fraction which possess a gene which gives

maks197457 [2]

Answer:

The margin of error for the 90% confidence interval is of 0.038.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

The margin of error is:

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

To this end we have obtained a random sample of 400 fruit flies. We find that 280 of the flies in the sample possess the gene.

This means that $n = 400, \pi = \frac{280}{400} = 0.7$

90% confidence level

So $\alpha = 0.1$ , z is the value of Z that has a pvalue of $1 - \frac{0.1}{2} = 0.95$ , so $Z = 1.645$ .

Give the margin of error for the 90% confidence interval.

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

$M = 1.645\sqrt{\frac{0.7*0.3}{400}}$

$M = 0.038$

The margin of error for the 90% confidence interval is of 0.038.

8 0

2 years ago