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3 years ago

13

So, I'm completely lost on this. It's very easy to figure out as it's just writing a function, but I'm not entirely sure about t

he correct way to do so. I'd just like a standard f(w)= l*w type formula, if that's okay.

Raj is making a rectangular garden for his dog Cinnamon to play in. The length, l, of the garden is 2 yards greater than its width, w, in yards. Enter the function, f(w), which describes the area, in square yards, of Raj’s garden as a function of the width, w.

1 answer:

Schach [20]3 years ago

8 0

Width = w
length = w+2

f(w) =w(w+2) = w^2 + 2w.

Please, let me know whether the procedure is clear for you.

The answer is f(w)=w^2 + 2w.

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In a survey of 1000 large corporations, 260 said that, given a choice between a job candidate who smokes and an equally qualifie

Usimov [2.4K]

Answer:

The 95% confidence interval for the proportion of corporations preferring a nonsmoking candidate is (0.2328, 0.2872)

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 $1 - \frac{\alpha}{2}$ .

For this problem, we have that:

$n = 1000, p = \frac{260}{1000} = 0.26$

95% confidence level

So $\alpha = 0.05$ , z is the value of Z that has a pvalue of $1 - \frac{0.05}{2} = 0.975$ , so $Z = 1.96$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.26 - 1.96\sqrt{\frac{0.26*0.74}{1000}} = 0.2328$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.26 + 1.96\sqrt{\frac{0.26*0.74}{1000}} = 0.2872$

The 95% confidence interval for the proportion of corporations preferring a nonsmoking candidate is (0.2328, 0.2872)

4 0

2 years ago

(a) Work out<br> 8 × 1/1/1<br> x<br> 3<br> Give your answer as a mixed numbers

Mama L [17]

Answer:

well.. 1/1/1 would be 1.

8 x 3 = 24

24x 1 = 24

sooo the answer would be 24...

Step-by-step explanation:

3 0

2 years ago

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4. k(x) × g(x) × f(x)

Vikentia [17]

$k(x) \times f(x)$

$(2x + 5) \times (x - 1)$

$2 x(x - 1) + 5(x - 1)$

$({2 x }^{2} - 2x) + (5x - 5)$

${2x}^{2} - 3x - 5$

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$k(x) \times g(x) \times f(x)$

$g(x) \times (k(x) \times f(x))$

$({6x }^{2} - 4x + {3x}^{4} ) \times ( {2x}^{2} - 3x - 5)$

${6x}^{2} ( {2x}^{2} - 3x - 5) - 4x ( {2x}^{2} - 3x - 5) + {3x}^{4} ( {2x}^{2} - 3x - 5)$

$12 {x}^{4} - 18 {x}^{3} - 30 {x}^{2} - {8x}^{3} - 12 {x}^{2} - 20x + {6x}^{6} - 9x {}^{5} - {15x}^{4}$

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2 years ago

4.) Write the equation in slope-intercept form for a line, where m =<br> through the point (2, -3).

Natalija [7]

Answer:

y = - 3/2x

Step-by-step explanation:

point (x , y)

point (2 , -3)

m = y/x

m = -3/2

4 0

2 years ago

Help please ! whoever answers correctly gets brainliest :)

musickatia [10]

Answer:

1: proportional

2: non-proportional

3: non-proportional

4: non-proportional

5: proportional

6: proportional

7: non-proportional

8: proportional

9. proportional.

10. proportional.

11. non-proportional.

12. proportional.

Step-by-step explanation:

I'm unsure how the proportional ones are actually calculated depending if it requires a dot on the exact origin, but depending on what I can graphically view and assume; every graph with the line running through the origin is proportional and every graph where the line does not run through the origin is non-proportional.

7 0

2 years ago

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