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Verdich
2 months ago
7

Imagine that you are plotting points on a coordinate plane. Each axis is labeled with integers from −5 to 5. Explain how you wou

ld plot a point at the location (−21
2
, −4).

Write three to four sentences.

30pts
Mathematics
2 answers:
Leona [12.6K]2 months ago
5 0

Answer:

Example Response: Begin at the origin point. The x-axis coordinate is −2½, requiring a move 2½ units to the left. This value sits midway between −3 and −2. For the y-axis, the coordinate is −4, which means a downward movement of 4 units. The point can then be plotted.

for   e d g e n u i t y students

lawyer [12.5K]2 months ago
3 0
Four statements:
 1) Start by dividing the x-axis into equal segments.
 2) n = 212/5 = 42.4.
 3) Each segment along the x-axis represents 42.4. This means you can plot the point -212 at x = -5
 4) The y-axis can keep its magnitude and you can plot the coordinate of -4 at y = -4
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Answer:

(B) 0.2843

Step-by-step explanation:

Let d represent the difference in proportions between Country X and Country Y for adults who first married from ages 18 to 32.

The hypotheses can be stated as

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H_{a}: d<0.15

The test statistic can be computed with the formula

z=\frac{p1-p2-0.15}{\sqrt{{p*(1-p)*(\frac{1}{n1} +\frac{1}{n2}) }}} where

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  • p2 corresponds to the sample proportion from Country Y (0.26)
  • p indicates the pooled proportion of p1 and p2 (\frac{60*0.36+50*0.26}{50+60}=0.31)
  • n1 is the sample size from Country X (60)
  • n2 is the sample size from Country Y (50)

Thus, z=\frac{0.36-0.26-0.15}{\sqrt{{0.31*0.69*(\frac{1}{60} +\frac{1}{50}) }}} is approximately 0.5646

The p-value for this test statistic is approximately 0.2843

The p-value indicates the likelihood that the difference in proportions between a random sample of 60 adults from Country X and a sample of 50 adults from Country Y who were first married at ages 18 to 32 is at least 0.15.

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2 months ago
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Read 2 more answers
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babunello [11817]

Response:

Detailed explanation:

The length of the pool is longer than its width by 8 meters.

If we designate L as length and W as width, we can express this as:

L = 8 + W

We also know that the area amounts to 105 m squared.

Note:

Area of a Rectangle = Length x Width

Thus, 105 = (8 + W) x W

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To adjust the equation, subtract 105 from both sides:

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Answer:
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