3 years ago

Does the graph shown below represent y as a linear function of x

Mathematics

1 answer:

Gennadij [26K]3 years ago

6 0

Answer:

Step-by-step explanation:

a linear equation shows a straight line

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Automobile mechanics conduct diagnostic tests on 150 new cars of particular make and model to determine the extent to which they

galben [10]

Answer: 0.0944

Step-by-step explanation:

Given : Sample size of cars : n= 150, sample size is greater than 30 , so we use z-test.

Number of cars tested do have faulty catalytic converters =42

Then the proportion of cars have faulty catalytic converters : $\hat{p}=\dfrac{42}{150}=0.28$

Critical value of z for 99% confidence level : $z_{\alpha/2}=2.576$

Formula for Margin of error :

$E=z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$E=(2.576)\sqrt{\dfrac{0.28(1-0.28)}{150}}\\\\=0.0944377199216\approx0.0944\ \text{Rounded to four decimal places}$

Hence, the required margin of error = $0.0944$

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3 years ago

The sum of 14 and a number is equal to 17

Andrews [41]

Answer:

Step-by-step explanation:

Sum of 14 and number means "n + 14" and equals 17 means "= 17."

Now that we have an equation, we can solve.

<h3>Step 1: Subtract 14</h3>

n = 3

<h3>Step 2: Check</h3>

3 + 14 = 17

17 = 17 ✔

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3 1/6 times 1 4/7 in simplest form

a_sh-v [17]

Answer:

Its about 5

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