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2 years ago

What is the value of x in the figure below? Round to the nearest tenth. Х 18 52

Mathematics

1 answer:

azamat2 years ago

8 0

Wdym? Is there a shape or is it a fraction

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Put y + 3 = -3(x + 2) in slope-intercept form.

alexgriva [62]

Answer:

$y + 3 = - 3(x + 2) \\ y + 3 = - 3x - 6 \\ y = - 3x - 9$

5 0

3 years ago

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The claim is that the proportion of adults who smoked a cigarette in the past week is less than 0.30, and the sample statistics

IrinaK [193]

Answer: 0.84

Step-by-step explanation:

let p be the population proportion of adults who smoked a cigarette in the past week.

As per given , we have

$H_a: p$

Sample size : n= 1491

The sample proportion of adults smoked a cigarette= $\hat{p}=\dfrac{x}{n}=\dfrac{462}{1491}=0.30985915493\approx0.31$

The test statistic for proportion is given by :-

$z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}$

Substitute all the values , we get

$z=\dfrac{0.31-0.30}{\sqrt{\dfrac{0.30(1-0.30)}{1491}}}\\\\=\dfrac{0.01}{\sqrt{0.000141}}\\\\=\dfrac{0.01}{0.011874342087}=0.84261497731\approx0.84$

Hence, the value of the test statistic = 0.84

6 0

3 years ago

Solve for x: 4/x - x/8 = 0

Lostsunrise [7]

Answer:

$x = \sqrt{32}$

Step-by-step explanation:

$\frac{4}{x} - \frac{x}{8} = 0\\\\\frac{4}{x} = \frac{x}{8}\\\\x^2 = 32\\\\x = \sqrt{32}$

8 0

3 years ago

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Identify the coefficient of −24x7y3

Sloan [31]

The coefficient of these two number are -24 and 7. :)

4 0

3 years ago

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Please someone help!!!

agasfer [191]

Answer:

Step-by-step explanation:

A, B and C must be real numbers, and A and B are not both zero (which would cause division by zero in the calculation of the slope).

3 0

3 years ago