Answers by David Colwell

Answers by David Colwell

A mixture of compounds containing diethylamine, phenol, ammonia, and acetic acid is separated using liquid-liquid extraction as follows: Step 1: Concentrated HCl is added followed by draining the aqueous

answered Jul 29, 2021

4 votes

88.0k views

Directions: Summarize the main ideas of this lesson by answering the question below. How might a person acquire a fear of or aversion to something even though it has no negative effect on him or her?

answered Jul 6, 2021

6 votes

26.2k views

Use the histogram and the drop-down menus to complete the statements. This histogram has clusters. The clusters tell us when there is a frequency of new memberships. The peak in tells us when the new memberships

answered May 29, 2021

4 votes

59.1k views

2x²+12x-7 =0 (completing the square) give your answer to 2 decimal places

answered Apr 28, 2021

2 votes

108k views

ABC Company is a manufacturing firm. At the beginning of July, ABC had a total inventory balance of $48,000. During the month of July, ABC had the following transactions.Purchased raw materials costing

answered Apr 11, 2021

5 votes

98.1k views

Can 0.8 be the probability of an outcome in a sample space Yes or no

answered Mar 7, 2021

6 votes

64.8k views

What did the Three-Fifths Compromise do? A) It decided how enslaved people would be counted in congressional representation. B) It declared that Congress would not regulate the slave trade until 1808.

answered Mar 5, 2021

3 votes

132k views

Solve the following system of equations by the substitution method. x - y = 0 x - y - 2 = 0 What is the solution set? {(1, -1)} {(-1, 1)} ∅

answered Dec 18, 2020

0 votes

105k views

What is the name of the relationship between Mathml image1 and Mathml image4? Parallel Lines and Transversals Question 5 options: corresponding angles alternate interior angles same side interior (supplementary)

answered Nov 28, 2020

1 vote

161k views

Find the solution set for the equation, given the replacement set. 5x + 2y = –3; {(–2, 9.5), (–3, 11.5), (–4, 8.5), (–5, 6.5)} a. {(–2, 9.5), (–3, 11.5)} c. {(–4, 8.5)} b. {(–3, 11.5)} d. {(–4, 8.5), (–5,

answered Nov 26, 2020

6 votes

188k views

Which number sentence is true? A. -6.1 + (-3.3) = -2.8 B. -6.1 + (-3.3) = 2.8 C. -6.1 + (-3.3) = 9.4 D. -6.1 + (-3.3) = -9.4

answered Oct 1, 2020

4 votes

112k views

Stephen runs a pet salon. He is currently grooming 130130 dogs per week. If instead of grooming 130130 dogs, he grooms 131131 dogs, he will add $65.8265.82 to his costs and $68.1268.12 to his revenues.

answered Sep 17, 2020

3 votes

1.9k views

The product of heart rate times stroke volume is called ___________.

answered Mar 29, 2020

6 votes

27.0k views

Please help I don’t get this at all

answered Jan 7, 2020

4 votes

63.0k views

How much work is required to lift a 2000-kg satellite from the surface of 7x10^6 the earth to an altitude of m?

answered Dec 15, 2019

4 votes

234k views

Which student correctly identifies a similarity and a difference between vector quantities and scalar quantities? A) Adam B) Binyam C) Carlita D) Dante

answered Jun 22, 2019

0 votes

148k views

All of the following are associated with AP courses except that... A.) you may earn college credit if you score 3 or higher or an AP exam in the subject covered by a course. B.) passing a course guarantees

answered Jun 14, 2019

3 votes

227k views

Is √3/16 rational or irrational

answered Feb 22, 2019

6 votes

142k views

Green sea turtles eat sea grass that grows on the sea floor. Seagrass, a foundation species, provides an important breeding ground for fish and other marine organisms. A conservation program for the green

answered Jan 30, 2019

3 votes

119k views

Please show work thanks! Dina and Masha started out on a 10 km bike path at the same time. When Dina reached the end of the 10 km, Masha still had 2 km left to bike. If Dina’s biking speed was 5 km/h,

answered Dec 27, 2018

2 votes

12.4k views

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