this is for the Unit 4 CBA Sample Work if someone could help me with all the answers that would be a lifesaver.
Select the pairs that are proportional:
13/15, 65/85
6/15,2/5
65/39, 2/5
21/24, 20/12
7/28, 12/36
please help me, I did this portfolio but it didn't come back as complete so I have to do it all over again. 😫
 👍
 👎
 👁
 ℹ️
 🚩
1 answer

B
C
D 👍
 👎
 ℹ️
 🚩
Answer this Question
Related Questions

chemistry
A sample of propane(c3h8)has 3.84x10^24 H atoms. a) how many carbon atoms does the sample contain? b) what is the total mass of the sample?

Chemistry
CuSO4.xH2O Determine the percent by mass of water in your sample of hydrated copper (II) sulfate. Show your calculations clearly. My work. i got 10% is that correct

CHEM
A) a picture shows a container that is sealed at the top by a movable piston. Inside the container is a ideal gas at 1.00atm , 20.0 *C, and 1.00L. (The pic is of a 2L container which has a piston pushed downward to the 1L level. Under the piston, under the

Science
A scientist observed two rock samples. Sample A was found in the bottom of a driedup lake and contained fossils. Sample B was found near a volcano and was glassy in appearance. Which statement is MOST LIKELY correct? A. Sample A is an igneous rock, and

Chem
A 25.0 mL aliquot of a wellshaken and filtered sample of river is pipetted into an evaporating dish. The sample was heated to dryness. Assume the density of the river water was 1.01g/mL. The following data were collected for Trial 1. Complete the data.

CHEM
The following data were collected for determining the concentration of suspended solids in a water sample. (D= 1.01 g/mL). Express all calculated data with the correct number of significant figures. Volume of sample (mL): Trial 1: 25.0 trial 2: 20.0 trial

Math
You’re involved in the design of a new facility. It is important for people to move between work stations quickly. Based on the figure below, how many feet would a person need to walk to get from Work Station 1 to Work Station 3? Work Station 1 5 feet

Math
A sample of n _ 11 scores has a mean of M _ 4. One person with a score of X _ 16 is added to the sample. What is the value for the new sample mean?

Statistics
A manufacturer makes two models of an item: model I, which accounts for 80% of unit sales, and model II, which accounts for 20% of unit sales. Because of defects, the manufacturer has to replace (or exchange) 10% of its model I and 18% of its model II. If

Math
a citizens group wants to determine people's opinions about a new road. The members of the group conduct a survey at the largest part of the mall in the city. Which best describes the sampling method used by the citizens' group? A.) convenience sample B.)

Stats
A sample of 400 items is taken from a population whose standard deviation is 10. The mean of the sample is 40. Test whether the sample has come from a population with mean 38. Also calculate 95% confidence interval for the population.

Chemistry
The density of solid W is 19.3 g/cm3. How many atoms are present per cubic centimeter of W? As a solid, W adopts a bodycentered cubic unit cell. How many unit cells are present per cubic centimeter of W? What is the volume of a unit cell of this metal?

Statistics
Could anyone help me out with the following problem? Identify the consequences (i.e. increase, decrease, or none) that the following procedures are likely to have on both bias and sampling error in an experimental study. A) Assigning treatments to subjects

John jay college
A random sample of n = 9 scores is obtained from a population with μ = 50 and σ = 9. If the sample mean is M = 59, what is the zscore corresponding to the sample mean? z = 3.00 z = 1.00 z = 9.00 cannot determine without additional information

STATISTICS
According to the Central Limit Theorem, The traditional sample size that separates a large sample size from a small sample size is one that is greater than 100 30 500 20

chemistry
if one can find the ratio of the number of moles of the elements in a compound to one another, one can find the formula of the compound. in certain compound of copper and oxygen, Cux Oy, we find that a sample weighing 0.5424g contains 0.4831g Cu. a. How

statistics
A sample from a population with = 40 and = 10 has a mean of M = 44. If the sample mean corresponds to a z = 2.00, then how many scores are in the sample? a. n = 100 b. n = 25 c. n = 5 d. n = 4

statistics
7) A final exam in Statistics has a mean of 73 with a standard deviation of 7.73. Assume that a random sample of 24 students is selected and the mean test score of the sample is computed. What percentage of sample means are less than 70?

Statistics
A sample of n = 9 scores is obtained from a population with ƒÝ = 70 and ƒã = 18. If the sample mean is M = 76, then what is the zscore for the sample mean? a. z = 0.33 b. z = 0.50 c. z = 1.00 d. z = 3.00

history
Why was the 54th Massachusetts Regiment famous?** A. It was an African American unit that was noted for heroism in battle. B. It was a Union replacement unit that turned the tide at the Battle of Gettysburg. C. It was composed of men under the age of 20.
Still need help?
You can ask a new question or browse existing questions.