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3 years ago

What Is The Meaning Of Addition?Answer Will Be Marked As Brainliest!

Mathematics

2 answers:

wel3 years ago

8 0

Answer:

Addition is the action or process of adding something to something else.

Afina-wow [57]3 years ago

6 0

Addition is a mathematical operation which combines integers together

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Write an inequality to compare the decimals: 0.149 and 0.128. .

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3 years ago

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$bh + l(s_1 + s_2 + s_3)$
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4 years ago

Find the equation of a line that is perpendicular to the line y=1/9x+4 and contains the point (-9,0).

Tatiana [17]

Equation of a line that is perpendicular to the line $y=1/9x+4$ and contains the point (-9,0). is $y=-9x-81$

Step-by-step explanation:

We need to find the equation of a line that is perpendicular to the line $y=1/9x+4$ and contains the point (-9,0).

Finding slope

Since the lines are parallel, the slopes will be -1/slope 1

The equation given is in slope-intercept form: $y=mx+b$ where m is slope.

Comparing with given equation $y=1/9x+4$ the slope = 1/9

So, slope of required line is: -9

Finding y-intercept

To find y-intercept we use point (-9,0) and slope -9

Putting values:

$y=mx+b\\0=-9(-9)+b\\0=81+b\\b=-81$

So, y-intercept of required line is -81

Finding equation of required line:

Slope m = -9, y-intercept b = -81

Putting values

$y=mx+b\\y=-9x-81$

So, equation of a line that is perpendicular to the line $y=1/9x+4$ and contains the point (-9,0). is $y=-9x-81$

Keywords: Equation of line using Slope

Learn more about Equation of line using Slope at:

#learnwithBrainly

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3 years ago

In a random sample of 810 women employees, it is found that 81 would prefer working for a female boss. The width of the 95% conf

Nostrana [21]

Answer:

D) ± .0207

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

The width of the interval is given by the following formula:

$W = z\sqrt{\frac{\pi(1-\pi)}{n}}$

In a random sample of 810 women employees, it is found that 81 would prefer working for a female boss.

This means that $n = 810, p = \frac{81}{810} = 0.1$

95% confidence level

So $\alpha = 0.05$ , z is the value of Z that has a pvalue of $1 - \frac{0.05}{2} = 0.975$ , so $Z = 1.96$ .

The width of the 95% confidence interval for the proportion of women who prefer a female boss is

$W = z\sqrt{\frac{\pi(1-\pi)}{n}}$

$W = 1.94\sqrt{\frac{0.1*0.9}{810}} = 0.0207$

So the correct answer is:

D) ± .0207

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4 years ago

What is the equation of the line in slope-intercept form?ASAP!!! Please

bezimeni [28]

We use y=mx+c we know that c= 4 A’s this is the y intercept . Next we need to work out the gradient(m). For every two squares along we go three squares up. This means are gradient is 1.5. Finally we input are values into the equation y=1.5x+4

4 0

4 years ago

Read 2 more answers

What Is The Meaning Of Addition?Answer Will Be Marked As Brainliest!​

What Is The Meaning Of Addition?Answer Will Be Marked As Brainliest!