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2 years ago

Find the slope of the line through the points -12, 10 and -9,-15

Mathematics

2 answers:

Pavlova-9 [17]2 years ago

7 0

Answer:

-25/3

Step-by-step explanation:

Mice21 [21]2 years ago

4 0

Answer:

Step-by-step explanation:

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BigorU [14]

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2 years ago

HELP ME FIND SLOPE!! PLZ

Murrr4er [49]

Answer:

Step-by-step

the slope is 1, 1

explanation:

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2 years ago

Use the sample data and confidence level to construct the confidence interval estimate of the population proportion p. n equals

Alekssandra [29.7K]

Answer:

(0.767,0.833)

Step-by-step explanation:

The 95% confidence interval for population proportion p can be computed as

$p-z_{\frac{\alpha }{2} } \sqrt{\frac{pq}{n} }$

The z-value associated with 95% confidence level is 1.96.

whereas p=x/n

We are given that x=440 and n=550.

p=440/550=0.8

$0.8-1.96\sqrt{\frac{0.8(0.2)}{550} }$

$0.8-1.96\sqrt{\frac{0.16}{550} }$

$0.8-1.96\sqrt{0.00029 }$

$0.8-1.96(0.01706)$

$0.8-0.03343$

$0.76657$

Thus, the required confidence interval is

0.767<P<0.833 (rounded to 3 decimal places)

Hence, we are 95% confident that our true population proportion will lie in the interval (0.767,0.833)

3 0

2 years ago

Y is directly proportional to x^2. It is known that y=10 for a particular value of x. Find the value of y when the value of x is

Mandarinka [93]

<span>Y is directly proportional to x^2. It could be represented by the expression:

y </span>α x^2

We can make it into an equality by inserting the proportionality constant, k.

y = kx^2

k would be constant for any value of y with a corresponding value of x. We solve the problem by this concept as follows:

y1/(x1)^2 = y2/(x2)^2
10/(x1)^2 = y2/(x1/2)^2
10/4 = y2

Therefore, when the value of x is halved, y is equal to 10/4.

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3 years ago

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lesya [120]

2hours and 52 minutes

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3 years ago

Find the slope of the line through the points -12, 10￼ and -9,-15

Find the slope of the line through the points -12, 10 and -9,-15