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Zanzabum
2 years ago
9

A courier service company wishes to estimate the proportion of people in various states that will use its services. Suppose the

true proportion is 0.05.
If 269 are sampled, what is the probability that the sample proportion will differ from the population proportion by less than 0.03?
Mathematics
1 answer:
galben [10]2 years ago
5 0

Answer:

the area of a square piece of garden is 9409cm what is the premiter of a garden

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Keegan is printing and selling his original design on t-shirts. He has concluded that for x shirts, in thousands sold his total
Katarina [22]

Answer:

t-shirts: 2790

profit: $12209

Step-by-step explanation:

Given  the function:

p(x) = -x³ + 4x² + x

we want to maximize it.

The following criteria must be satisfied at the maximum:

dp/dx = 0

d²p/dx² < 0

dp/dx = -3x² + 8x + 1 = 0

Using quadratic formula:

x = \frac{-b \pm \sqrt{b^2 -4(a)(c)}}{2(a)}

x = \frac{-8 \pm \sqrt{8^2 -4(-3)(1)}}{2(-3)}

x = \frac{-8 \pm 8.72}{-6}

x_1 = \frac{-8 + 8.72}{-6}

x_1 = -0.12

x_2 = \frac{-8 - 8.72}{-6}

x_2 = 2.79

d²p/dx² = -6x + 8

d²p/dx² at x = -0.12: -6(-0.12) + 8 = 8.72 > 0

d²p/dx² at x = 2.79: -6(2.79) + 8 = -8.74 < 0

Then, he should prints 2.79 thousands, that is, 2790 t-shirts to make maximum profits.

Replacing into profit equation:

p(x) = -(2.79)³ + 4(2.79)² + 2.79 =  12.209

that is, $12209

3 0
3 years ago
Using the illustration below, calculate the area of the circle.
Keith_Richards [23]
Find thy radius.

Thy radius is 7.25 (D / 2 = R)

Thy formula for area is A = (pi)r^2

Substitute and Solve

A = (pi)r^2
   = (pi)(7.25)^2
   = (pi)(52.5625)
   = 165.04625

Therefore, the area is about 165.
6 0
3 years ago
Read 2 more answers
Given that IK is a midsegment of AFGH, find GH.
guajiro [1.7K]
It’s either C or B but I’m not sure
8 0
3 years ago
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Jose and Sue are playing a board game. If they land on a red or blue square, they lose 1 point. The inequality statement compare
Nina [5.8K]
The inequality statement shows that both Jose and Sue landed on red or blue squares and hence both lost some points. The points they lost were more than the points they gained, which resulted in an overall score having a negative value for each player.

Jose had a final score of -2 and Sue had a final score of -5. This means, Sue scored less and probably lost more points as compared to Jose. There is a difference of 3 points between the scores of both players. 


3 0
3 years ago
Read 2 more answers
What is the y-intercept of f(x)<br> -(1)?<br><br> A. (1,0)<br> B.(1 1/4)<br> C. (0,0)<br> D. (0,1)
Nataly [62]

Y intercept is where our x variable is equal to 0 and where the graph touches the y-axis.

Therefore, you can get the y intercept by just plugging in x = 0. For example, in the linear function: f(x) = 2x + 3, our y intercept would be (0,3) because we just set our x value equal to 0.

7 0
3 years ago
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