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3 years ago

How do we write a set -builder method ?

Mathematics

1 answer:

Katena32 [7]3 years ago

8 0

Answer: 6(1,2,3)

Step-by-step explanation:

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Write an equation for the following real life scenario.

mojhsa [17]

Answer:

1/2x = 16

x = 32

Step-by-step explanation:

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2 years ago

The rule for the function g says to use x−2 as the input of function f.

Natali [406]

Subtracting a value from the input x shifts the graph that number of units to the right.

The answer would be C.

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3 years ago

Beth was helping plant flowers in the community park she found that it took 5 minutes to plant one flower if Beth planted 36 flo

Andreyy89

Answer:

180 minutes

Step-by-step explanation:

because you times 5 by 36

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3 years ago

A study was conducted to compare the proportion of drivers in Boston and New York who wore seat belts while driving. Data were c

allochka39001 [22]

Answer:

a) The test statistic is $z = -2.51$

b) The pvalue is 0.0060.

Step-by-step explanation:

Question a:

Ha: pB < pNY

This means that the alternate hypothesis is rewritten as:

$H_a: p_{B} - p_{NY} < 0$

While the null hypothesis is:

$H_0: p_{B} - p_{NY} = 0$

The test statistic is:

$z = \frac{X - \mu}{s}$

In which X is the sample mean, $\mu$ is the value tested at the null hypothesis and s is the standard error

pB = 0.581, pNY = 0.832

This means that $X = 0.581 - 0.832 = -0.251$

0 is tested at the null hypothesis:

This means that $\mu = 0$

Standard error = 0.1

This means that $s = 0.1$

Test statistic:

$z = \frac{X - \mu}{s}$

$z = \frac{-0.251 - 0}{0.1}$

$z = -2.51$

The test statistic is $z = -2.51$

Question b:

The pvalue is the probability of finding a proportion less than -0.251, that is, a difference of at least 0.251, which is the pvalue of Z = -2.51.

Looking at the z-table, Z = -2.51 has a pvalue of 0.0060

The pvalue is 0.0060.

5 0

3 years ago

Derive the equation of the parabola with a focus at (2, 4) and a directrix of y = 8.

4vir4ik [10]

Directrix y = 8
It is a horizontal line so the parabola is vertical.
The focus (2, 4) lies below the directrix,
Therefore parabola opens downwards. 
vertex will be halfway between focus and directrix, at (2, 6) 
focal length =p
= distance between focus and vertex
= 2 
y = (-1/(4p))(x - 2)² + 6 
y = (-1/8)(x - 2)² + 6
hope this helps

6 0

3 years ago

How do we write a set -builder method ?​

How do we write a set -builder method ?