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3 years ago

What is the equation in point-slope form of the line that passes through the point (-2, 7) and has a slope of 3?

Mathematics

1 answer:

larisa [96]3 years ago

5 0

Answer:

y-7=3(x+2)

Step-by-step explanation:

Point Slope Form is:

$y-y_1=m(x-x_1)$

We are given the point of (-2, 7) and the slope of 3.

Plug in the appropriate values:

$y-y_1=m(x-x_1)\rightarrow \boxed{y-7=3(x+2)}$

Hope this helps.

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An entrepreneur faces many bureaucratic and legal hurdles when starting a new business. The World Bank collects information abou

slamgirl [31]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the data :

Rearranged data:

5, 5, 5, 5, 6, 7, 7, 7, 8, 12, 12, 13, 13, 15, 18, 18, 27, 28, 36, 48, 52, 60, 66, 94

Start time for Suriname = 694

Mean = ΣX / n

Mean = (567 + 694) / (24 + 1) = 1261 / 25 = 50.44

B.) median start Time for initial 24 values

0.5(n+1)th term

0.5(25) = 12.5th term

(13 + 13) / 2 = 13

C.) preferred measure of center for the distribution will be the median as it shapes well in the middle of the distribution. The mean is overestimated

d) Compute the quartiles (Q1, Q2, Q3), and find the IQR for these data. Are there outliers in the time to start a business data set? If so, identify and name any outliers.

Using calculator :

Lower quartile Q1 --> 7

Median Q2 --> 13

Upper quartile Q3 --> 42

IQR = (Q3 - Q1) = 42 - 7 = 35

OUTLIER:

Lower bound : Q1 - 1.5(IQR) ; 7 - 1.5(35) = - 45.5

Upper bound : Q3 + 1.5(IQR) = 42 + 1.5(35) = 94.5

Outlier : values below - 45.5 and above 94.5

Hence, Surimanes start time is the only Outlier.

Standard deviation for 24 countries :

Standard deviation = sqrt[Σ(X - mean)^2 / (N - 1)]

Usibg calculator :

Standard deviation for the 24 countries is 23.83

Standard deviation

5 0

2 years ago

In Tyrone's science class he is studing cells. Cell A divides every 30 minutes. If Tyrone starts with two cells, how many cells

SashulF [63]

In 1 hour you'll have 4 cells so multiply that by 3 and you will have 12 cells in 3 hours

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3 years ago

What is the area of the parallelogram?<br> 15 cm<br> 21 cm<br> 20 cm

padilas [110]

Answer:

Its either 300 or 315

Step-by-step explanation:

Mainly because 20 ×15= 300 but the triangles on the side, I can't figure it out. I eliminated 82 and 420, 420 mainly because I got it wrong and 82 doesn't make sense.

8 0

2 years ago

I need help calculating the answer to this ✨<br><br> 9x - 7i > 3(3x - 7u)

Valentin [98]

<h2>Answer:</h2><h2>All real numbers!!</h2><h2>Hope this helps!!</h2>

3 0

2 years ago

In a sample of 230 teenagers, 202 would like to have smaller class sizes at their school. Find the sample

marishachu [46]

Answer:

The sample proportion is 0.88.

The margin of error is of 0.04.

The interval likely to contain the true population proportion is (0.84,0.92).

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.