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3 years ago

The slope of the line passing through the points (7,5)and(21,15) is

Mathematics

2 answers:

Delicious77 [7]3 years ago

6 0

Y= $\frac{5}{7}$ x+0 is the equation. $\frac{5}{7}$ is the slope.

yan [13]3 years ago

4 0

Answer:

The slope is $\frac{5}{7}$

Step-by-step explanation:

Since, the slope of a line that passes through the points $(x_1,y_1)$ and $(x_2,y_2)$ is,

$m=\frac{y_2-y_1}{x_2-x_1}$

Thus, the slope of the line passes through the points (7,5) and (21,15) is,

$m=\frac{15-5}{21-7}$

$=\frac{10}{14}$

$\implies m=\frac{5}{7}$

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Write five and ninety-five hundredths as a decimal number.

poizon [28]

Answer:

5.95

Step-by-step explanation:

Five and ninety-five hundredths as a decimal number is 5.95.

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3 0

2 years ago

Read 2 more answers

The random variable x represents the number of computers that families have along with the corresponding probabilities. Find the

Charra [1.4K]

The value of the Mean & Standard deviation is 1.30 and 1.18.

According to the statement

we have a given that the random variable x represents the number of computers that families have along with the corresponding probabilities.

And we have to find the mean and standard deviation from the given data which is related to the probabilities values

So, according to the given data

The formula to compute the mean is:

Mean = summation [x*p(x)]

Compute the mean as follows:

Mean = summation [x*p(x)]

Mean = summation [0*0.49 + 1* 0.05 + 2*0.32 + 3*0.07 + 4*0.07]

Mean = 0 +0.05 + 0.64 + 0.21 + 0.28

Mean = 1.18

The mean of the random variable x is 1.18.

And after calculating the variance from the formula get

The value of standard deviation is 1.30

So, The value of the Mean & Standard deviation is 1.30 and 1.18.

Learn more about mean and standard deviation here brainly.com/question/14650840

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8 0

2 years ago

Put the following in order for the most area in the tails of the distribution. (a) Standard Normal Distribution (b) Student's

tensa zangetsu [6.8K]

Answer:

(b) (c) (a)

Step-by-step explanation:

Standard Normal distribution has a higher peak in the center, with more area in this región, hence it has less area in its tails.

Student's t-Distribution has a shape similar to the Standard Normal Distribution, with the difference that the shape depends on the degree of freedom. When the degree of freedom is smaller the distribution becomes flatter, so it has more area in its tails.

Student's t-Distributionwith 1515 degrees of freedom has mores area in the tails than the Student's t-Distribution with 2020 degrees of freedom and the latter has more area than Standard Normal Distribution

5 0

3 years ago

Find the cost of a cd in 6years,assuming an inflation rate if 4% , if its present cost is $11.95

choli [55]

The cost of a cd after 6 year is =$ 15.12

Step-by-step explanation:

The present cost of the cd is $11.95 and inflation rate 4%

P = $11.95 , r = 4% and n = 6 years

The cost of a cd after 6 year is = $P (1+\frac{r}{100})^n$

=$ $11.95(1+\frac{4}{100})^6$

=$ 15.12

3 0

3 years ago

Evaluate 2^2⋅4^3= Your answer

ivanzaharov [21]

Answer:

256

Step-by-step explanation:

First, handle the exponent:

2²=4 (2*2=4) and 4³=64 (4*4=16*4=64)

Now multiply those two outcomes:

4*64=256

This equation is also known as 4⁴

6 0

3 years ago