1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Tomtit [17]
3 years ago
6

What are the x- and y-coordinates of point C, which partitions the directed line segment from A to B into the ratio 3:10? Round

to the nearest tenth, if necessary. x = y =
Mathematics
2 answers:
Svetradugi [14.3K]3 years ago
8 0

Answer:

x =  -2.6

y =  5.2

Step-by-step explanation:

e2020 ; )

Soloha48 [4]3 years ago
3 0

Answer: on edge. it’s -2.6 and 5.2

Step-by-step explanation:

i just did it.

You might be interested in
What is the scale factor of the dilation of ABCD centered at the origin?
Ket [755]

Answer:

The anwser is -1/2

Step-by-step explanation:

A trick i personally learned is that is you are shrinking then it will turn up as a fraction, but make sure that fraction is not an improper fraction and if the dialation does get bigger it will be a whole number or improper fraction.

8 0
3 years ago
Grades on a standardized test are known to have a mean of 1000 for students in the United States. The test is administered to 45
vovikov84 [41]

Answer:

a. The 95% confidence interval is 1,022.94559 < μ < 1,003.0544

b. There is significant evidence that Florida students perform differently (higher mean) differently than other students in the United States

c. i. The 95% confidence interval for the change in average test score is; -18.955390 < μ₁ - μ₂ < 6.955390

ii. There are no statistical significant evidence that the prep course helped

d. i. The 95% confidence interval for the change in average test scores is  3.47467 < μ₁ - μ₂ < 14.52533

ii. There is statistically significant evidence that students will perform better on their second attempt after the prep course

iii. An experiment that would quantify the two effects is comparing the result of the confidence interval C.I. of the difference of the means when the student had a prep course and when the students had test taking experience

Step-by-step explanation:

The mean of the standardized test = 1,000

The number of students test to which the test is administered = 453 students

The mean score of the sample of students, \bar{x} = 1013

The standard deviation of the sample, s = 108

a. The 95% confidence interval is given as follows;

CI=\bar{x}\pm z\dfrac{s}{\sqrt{n}}

At 95% confidence level, z = 1.96, therefore, we have;

CI=1013\pm 1.96 \times \dfrac{108}{\sqrt{453}}

Therefore, we have;

1,022.94559 < μ < 1,003.0544

b. From the 95% confidence interval of the mean, there is significant evidence that Florida students perform differently (higher mean) differently than other students in the United States

c. The parameters of the students taking the test are;

The number of students, n = 503

The number of hours preparation the students are given, t = 3 hours

The average test score of the student, \bar{x} = 1019

The number of test scores of the student, s = 95

At 95% confidence level, z = 1.96, therefore, we have;

The confidence interval, C.I., for the difference in mean is given as follows;

C.I. = \left (\bar{x}_{1}- \bar{x}_{2}  \right )\pm z_{\alpha /2}\sqrt{\dfrac{s_{1}^{2}}{n_{1}}+\dfrac{s_{2}^{2}}{n_{2}}}

Therefore, we have;

C.I. = \left (1013- 1019  \right )\pm 1.96 \times \sqrt{\dfrac{108^{2}}{453}+\dfrac{95^{2}}{503}}

Which gives;

-18.955390 < μ₁ - μ₂ < 6.955390

ii. Given that one of the limit is negative while the other is positive, there are no statistical significant evidence that the prep course helped

d. The given parameters are;

The number of students taking the test = The original 453 students

The average change in the test scores, \bar{x}_{1}- \bar{x}_{2} = 9 points

The standard deviation of the change, Δs = 60 points

Therefore, we have;

C.I. = \bar{x}_{1}- \bar{x}_{2} + 1.96 × Δs/√n

∴ C.I. = 9 ± 1.96 × 60/√(453)

i. The 95% confidence interval, C.I. = 3.47467 < μ₁ - μ₂ < 14.52533

ii. Given that both values, the minimum and the maximum limit are positive, therefore, there is no zero (0) within the confidence interval of the difference in of the means of the results therefore, there is statistically significant evidence that students will perform better on their second attempt after the prep course

iii. An experiment that would quantify the two effects is comparing the result of the confidence interval C.I. of the difference of the means when the student had a prep course and when the students had test taking experience

5 0
2 years ago
To avoid dehydration, a person should drink 8 ounces of water for every 15 minutes of exercise. How much water should Hahn drink
Lostsunrise [7]

Answer:

72

Step-by-step explanation:

1. Proportion:

8/15=x/135

2. Answer is 72

7 0
3 years ago
I HAVE 8 MORE MINUTES
KonstantinChe [14]

Answer:

6

Step-by-step explanation:

Estimate it kid. Look at the existing dots.

6 0
3 years ago
Read 2 more answers
What has the diameter of a circle with the area of 484pie
andreyandreev [35.5K]
Area of a square = pie r^2.

Radius = sqrt 484 = 22.

Diameter = 2 r = 2 x 22 = 44.

Hope this helps!
7 0
3 years ago
Read 2 more answers
Other questions:
  • Factor c2 +6C + 8 = 0
    5·1 answer
  • Ian has a list of 3 visit on a road trip with some friends . He needs to finalize the plans for the trip . How many different or
    5·1 answer
  • Josh is hiking Glacier National Park. He has now hiked a total of 17 \text{ km}17 km17, space, k, m and is 2 \text{ km}2 km2, sp
    8·1 answer
  • First CORRECT answer WILL get Brainliest. I’m on a limited time so if you don’t know, don’t answer. No guesses, not what you thi
    9·1 answer
  • Ayo, what's your opinion on blue haired girls?
    7·2 answers
  • Solve the exponential equation <br> 2^x+10 = 18
    15·1 answer
  • Classify the triangle by its sides:<br> 17 cm, 5 cm, 13 cm?
    5·1 answer
  • Sebastian rides his bike 2000 meters in 5 minutes. How many meters does he bike in 1 minute?
    11·2 answers
  • Devon had 3/5 of a candy bar. Gina ate ½ of it. How much of it remains?​
    5·2 answers
  • Help asap please!!!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!