MATHEMATICS COLLEGE

Question below. no links please!

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

colinear points mean along the same line

Line m has 3 points labeled

Line n has 3 points labeled

Each line has only 3 points labeled

Answer 2

Answer:

This is an edit from my previous answer.

Initially I wrote that there were 5 collinear points. My line of reasoning was that A,B,C are on one line (making them collinear), and points D,B,E are on another line (another set of collinear points).

However, if the question is asking how many collinear points are on one particular line, then the answer would be 3 collinear points. You can focus on either line and it's the same number of collinear points.

Definition: The term "collinear" means all points fall on the same straight line.

Related Questions

I’m having a bit of trouble with this
How much pure alcohol must a pharmacist add to 10 cm of a 10% alcohol solution to strengthen it to a 70% solution? ASAP
Please help ASAP in math I have a picture
(/25) 11111111.11111111.11111111.10000000 dotted decimal subnet mask equivalent: ________________________________ number of subnets? ________________, number of hosts? ________________ (/26) 11111111.11111111.11111111.11000000 dotted decimal subnet mask equivalent: ________________________________ number of subnets? ________________, number of hosts? ________________ (/27) 11111111.11111111.11111111.11100000 dotted decimal subnet mask equivalent: ________________________________ number of subnets? ________________ number of hosts? ________________ (/28) 11111111.11111111.11111111.11110000 dotted decimal subnet mask equivalent: ________________________________ number of subnets? ________________ number of hosts? _________________ (/29) 11111111.11111111.11111111.11111000 dotted decimal subnet mask equivalent: ____
Zachary invested $5,300 in an account paying an interest rate of 9 % compoundedcontinuously. Peyton invested $5,300 in an account paying an interest rate of 85%compounded quarterly. After 9 years, how much more money would Zachary have inhis account than Peyton, to the nearest dollar?

According to the University of Nevada Center for Logistics Management, 6% of all merchandise sold in the United States gets returned (BusinessWeek, January 1 5, 2007). A Houston department store sampled 80 items sold in January and found that 12 of the items were returned.Construct a point estimate of the proportion of items returned for the population of sales transactions at the Houston store.

Answers

Using the sample proportion, it is found that the point estimate is of 0.15 = 15%.

What is a sample proportion?

A sample proportion is given by the number of desired outcomes divided by the number of total outcomes. It can also serve as the point estimate for the population proportion.

In this problem, 12 out of the 80 items sold were returned, hence:

12/80 = 0.15 = 15%.

The point estimate is of 0.15 = 15%.

More can be learned about point estimates at brainly.com/question/24651197

Answer:

a) $\hat p = (X)/(n)= (12)/(80)= 0.15$

b) $0.15 - 1.96 \sqrt{(0.15(1-0.15))/(80)}=0.072$

$0.15 + 1.96 \sqrt{(0.15(1-0.15))/(80)}=0.228$

And the 95% confidence interval would be given (0.072;0.228).

c) For this case since the confidence interval not contains the value 0.06 or 6% and since the lower limit for the confidence interval is higher than 0.06 (0.072>0.06), we have enough statistical evidence to support the conclusion that the true proportion of items returned is higher than 0.06 or 6% at a significance of 5%.

Step-by-step explanation:

Assumign the following question for the problem:

a. Construct a point estimate of the proportion of items returned for the population of sales transactions at the Houston store.

For this case the best estimate for the true proportion is given by the sample proportion:

$\hat p = (X)/(n)= (12)/(80)= 0.15$

b. Construct a 95% confidence interval for the porportion of returns at the Houston store.

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The confidence interval would be given by this formula

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

For the 95% confidence interval the value of $\alpha=1-0.95=0.05$ and $\alpha/2=0.025$ , with that value we can find the quantile required for the interval in the normal standard distribution.

$z_(\alpha/2)=1.96$

And replacing into the confidence interval formula we got:

$0.15 - 1.96 \sqrt{(0.15(1-0.15))/(80)}=0.072$

$0.15 + 1.96 \sqrt{(0.15(1-0.15))/(80)}=0.228$

And the 95% confidence interval would be given (0.072;0.228).

c. Is the proportion of returns at the Houston store significantly different from the returns for the nation as a whole? Provide statistical support for your answer.

For this case since the confidence interval not contains the value 0.06 or 6% and since the lower limit for the confidence interval is higher than 0.06 (0.072>0.06), we have enough statistical evidence to support the conclusion that the true proportion of items returned is higher than 0.06 or 6% at a significance of 5%.

$f(x) = {x}^(2) + 4x - 5$ ; >-2Find $\frac{d {f}^( - 1) }{dx}$ at x=16

Please show solving

Answers

The inverse function theorem says

$(\mathrm df^(-1))/(\mathrm dx)(16)=\frac1{(\mathrm df)/(\mathrm dx)(f^(-1)(16))}$

We have

$f(x)=x^2+4x-5$

defined on $x>-2$ , for which we get

$f^(-1)(x)=-2+√(x+9)$

and

$f^(-1)(16)=-2+√(16+9)=3$

The derivative of $f(x)$ is

$f'(x)=2x+4$

So we end up with

$(\mathrm df^(-1))/(\mathrm dx)(16)=\frac1{(\mathrm df)/(\mathrm dx)(3)}=\frac1{10}$

Ryan and Taylor are both saving money to buy new video game

Answers

Hope they get enough saved.

Pls help I will fail 10th grade

Answers

Answer:

Step-by-step explanation:

Please mark brainiest

Insert <, >, or = between the given pair of numbers to make a true statement.- |-11| - (-11)

Answers

Answer:

- |-11| < - (-11)

Step-by-step explanation:

Given the pair of numbers - |-11| and - (-11), we want to determine which is greater or whether they are equal

First lets rewrite both numbers.

- |-11| = -11 (note that the modulus sign will change any negative value into a positive value and that's why |-11| is equivalent to 11)

- (-11) = 11 (note that the negative sign here was retained since it is not an absolute value like the former)

It can be seen that both numbers are therefore not equal i.e - |-11| is less than - (-11). Hence the expression - |-11| < - (-11) is a true statement

A portfolio has average return of 13.2 percent and standard deviation of returns of 18.9 percent. Assuming that the portfolioi's returns are normally distributed, what is the probability that the portfolio's return in any given year is between -43.5 percent and 32.1 percent? A. 0.950
B. 0.835
C. 0.815
D. 0.970

Answers

Answer:

B. 0.835

Step-by-step explanation:

We can use the z-scores and the standard normal distribution to calculate this probability.

We have a normal distribution for the portfolio return, with mean 13.2 and standard deviation 18.9.

We have to calculate the probability that the portfolio's return in any given year is between -43.5 and 32.1.

Then, the z-scores for X=-43.5 and 32.1 are:

$z_1=(X_1-\mu)/(\sigma)=((-43.5)-13.2)/(18.9)=(-56.7)/(18.9)=-3\n\n\nz_2=(X_2-\mu)/(\sigma)=(32.1-13.2)/(18.9)=(18.9)/(18.9)=1\n\n\n$

Then, the probability that the portfolio's return in any given year is between -43.5 and 32.1 is:

$P(-43.5<X<32.1)=P(z<1)-P(z<-3)\n\nP(-43.5<X<32.1)=0.841-0.001=0.840$

Other Questions

Please help as soon as you can :(Alicia rolls two fair number cubes numbered from 1 to 6. She first defines the sample space, as shown below: (1, 1), (1, 2), (1, 3), (1, 4), (1, 5,) (1, 6)(2, 1), (2, 2), (2, 3), (2, 4), (2, 5,) (2, 6)(3, 1), (3, 2), (3, 3), (3, 4), (3, 5,) (3, 6)(4, 1), (4, 2), (4, 3), (4, 4), (4, 5,) (4, 6)(5, 1), (5, 2), (5, 3), (5, 4), (5, 5,) (5, 6)(6, 1), (6, 2), (6, 3), (6, 4), (6, 5,) (6, 6)Based on the sample spaces, what is the probability of getting a total of 7?A.) 4/36B.) 5/36C.) 6/36D.) 8/36Hope you can help!

Which expression represents "6 more than x"? x - 6 6x x + 6 6 - x

Convert 1010101001 from binary to hexadecimal.

Find the measure of angle b