Betsy

This page lists questions and answers that were posted by visitors named Betsy.

Questions

The following questions were asked by visitors named Betsy.

How many grams of benzoic acid, a monoprotic acid with a Ka=6.4x10 to the negative 5, must be dissolved in 500.0 mL of water to produce a solution with a pH=2.50?

Can a request for information be classified as an information or positive message

How can I prove a line is an altitude

find the second derivative of ln(sinx) i worked this out and i got -tanx

a child causes a wagon to accelerate by pulling it with a horizontal force. newton's third law says that the wagon exerts an equal and opposite force on the child. how can the wagon accelerate

A 2.000 g sample of magnesium was burned in air to form an oxide. After the product was purified it was found to have a mass of 3.317 g. What is the empirical formula for the product?

Explain how numbers can be used to name something.

A marble is dropped from a height of 10 m. A 2nd marble is rolled off a 10 m table at 5 m/s. A 3rd marble is fired at 5 m/s at an angle of 45 degrees off the table. Which one is going 15 m/s when it hits the ground?

An object has a mass of 80 kg on earth. the acceleration of gravity on Mars is about 1/4 of the acceleration of gravity on Earth. What is the weight of the object on Mars?

True or false? If A and B are angles of a triangle such that A > B, then cos A > cos B.

f(x)=xcubed - 2xsquared + 4x-7, what is f(0)

cot 19.8 degrees

A plane flies the first half of a 5600 km flight into the wind in 3.5 hours. The return trip, with the same wind, takes 2.5 hours. Find the speed of the wind and the speed of the plane in still air.

2 HgCl2 (aq) + SnCl2 (aq) --> SnCl4 (aq) + Hg2Cl2 (s) Hg2Cl2 (aq) + SnCl2 (aq) --> 2Hg (s) + SnCl4 (aq) For each reaction, write the two half-reactions that make it up and calculate the overall reaction potential by adding the two half-reactions. Each ove...

Grace ddrove 159 miles and used 5 3/10 gallons of gas. How far could she go with one gallon of gas?

Heather worked for 15 3/4. She was paid a total of 102 3/8 dollars. What is Heather hourly wage?

A phone call costs $0.58 for the first 3 minutes and $0.15 for each additional minute. If the total charge for the call was $4.78, how many minutes was the call?

3k/4 - 28 - 2k/3 = 37

3x/4 - 2x/3 = 2/5

Ellory budgets at most $20 each week for lunch. She has spent $17.75 so far this week. Write and solve an iequality to determine how much more Ellory can spend and stay within her lunch budget.

If someone invests $8000 at 7%, how much additional money must he invest at 4% so that his total annual income may equal 5% of his entire investment?

Tricia read 1/4 of her book on Monday. On Tuesday, she read 36% of the book. On Wednesday, she read 0.27 of the book. She finished the book on Thursday. What percent of the book did she read on Thursday?

The first social studies test had 16 questions. The second test had 220% as many questions as the first test. Find the number of questions on the second test.

A 40ft tall monument casts a shadow that just reaches the base of a 4ft tall parking meter. If the parking meter's shadow is 6.5ft long, how far apart are the monument and the meter?

Stanely is 6ft tall. He wants to stand in the shade of a tree that is 35ft tall. If the tree casts a 10ft shadow, what is the farthest Stanely can stand from the tree and be completely in its shadow? Round your answer to nearest tenth of a roof?

1)A bakery can sell muffins for $1 each. If it costs the bakery $5 to make 20 muffins, what percent of the money made from muffins sales is profit? 2) A community is considering increasing the sales tax rate 0.5% to fund a new sports arena. If the tax rat...

What is the principle and the interest? A=$2719.50 P= ? r=6.1% t=20 years What is the interest rate? Balance= $3742.50 p=$3000 interest rate= ? t=45 months

Anna and Tim saw two movies in one day. The two movies lasted 4 hours. One movie was half an hour longer than the other. How many hours did the shorter movie run?

The pressure on a scuba diver at sea level is 14.7 pounds per sq inch (psi). The pressure increases 0.445 psi for each foot of depth. Suppose the pressure on a diver is 41.4 psi. How deep is she? A spring is 2 in long with no weight suspended from it. For...

A scientist used 786 mL of a liquid for an experiment how many layers of the liquid did the scientist used for this experiment

Find the number of 12 lb bags of fertilizer and 15 lb. bags of feed in yesterday’s delivery if there were 6 more bags of feed than bags of fertilizer, and the total delivery weighed 333lb. I got x=14 and x+6= 20. But that does not seem correct.

Maria paid 80 cents each for some packages of cards. She sold all but 18 packages for $2 each, making a profit of $48. How many packages of cards did she buy? How do I set this problem up to solve it?

Do I have this right? These were very confusing. 16 = 4(x – 8) Given 16 = 4x -32 Distributive Property 16 + 32 = 4x -32 + 32 Addition Property of Equality 48 = 4x + 0 Combine like terms? 48 = 4x Identity Prop of Addition 48/4 = 4x/4 Division Prop of Equal...

Identify Supporting Details: What Does re publica mean?

howis oxygen important in the active transport in plants

Write how the following affect the rate of diffusion a different gradients be temperature c size of molecules d surface area to volume ratio

Limitations of containerization

Reasons why road transport is popular in Kenya

Is in which ways the nature of goods will influence the choice of transport

Reasons why a transporter of goods from Mombasa will prefer rail over road

T.i. manufacture exhibited his goods on the local trade shows however his sale did not increase significantly there after outlining reasons that may have led to the lacksignificance of the sale increase

Procedures involved in personal selling methods of sale promotion

Attracting customers the traders may put into use

Five benefits that a trader would get by advertising his goods through the radio

Reason why the fans with popular products find it necessary to continually advertise the same products

Highlight the factors that should be considered by the company when choosing the appropriate media through which to advertise the products

the role of a sales department in a business firm

Benefits to a seller who uses personal selling methods to promote her products

In the factors that have led to the survival of small-scale retailers despite competition from supermarkets

Economic benefit to a community that may result from the concentration in an area

Difference between plant and animal cell according to position of nucleus

Difference between plant and animal cell according to position of cytoplasm

Difference between plant and animal cell according to size

How to account for crenation

Draw a plant cell before and after photolysis

Give 4 factors affecting osmosis

Describe how turgor pressure builds up and identify 2 forces defining each of them

Function and deficiency symptoms of all mineral elements

Which mineral element function to form part of chlorophyll

Role of light in light stage

Role of light in light stage in plants

Explain light and dark stage during photosynthesis

Factors affecting rate of an enzyme reaction

Factors affecting rate of photosynthesis

What happens to the end product of photosynthesis

How do enzyme inhibitors affect rate of enzymes reaction

Diseases caused by lack of all types of vitamins and mineral elements

Diseases caused by lack of vitamin k

Disease caused by lack of all vitamins especially vitamin k

Disease caused by lack of all mineral elements

Disease caused by lack of iron and manganese

Name the 3 salivery glands

Name the 3 functions saliva

Name the 3 functions mucus in the stomach

4 adaptations of herbivores

Explain how carnassial teeth are adapted to their function

How does a tooth decay come to be

Adaptation of ileum

Substance that gives the enamel it's hardness

Which tissues function to primary growth and secondary growth

Adaptation of phloem tissue

Explain how do environmental factors affect plant rate of transpiration

State and explain the forces involved in the upward movement of water

Function of calcium ion ,thrombokinase, fibrin and vitamin k in blood clotting

What preparations should an interviewer make before an interview

Explain the importance of maintaining eye contact while giving a speech

State three factors about the audience that you must consider before giving a speech

Provide a homophone for each of the following words packed pain piqui rap serial play decent

Give a phrasal verb for pull through broken into show dozed off

Provide a phrasal verbs with the following meanings pull through ,broken into ,show and dozed off

Huku ukitolea mifano fafanua aina 5 za virai

Toa mifano ya nomino katika ngeli i-i Na u- zi

India sentensi zenye vitenzi hivi ,nywa,pa,chwa

Answers

The following answers were posted by visitors named Betsy.

Ok, so I'm at 1.56x10^-1 M, would I divide that by .5 L right away?

is it just tanx?

letters are R O CC EE from the Friday night Scramble in the newspaper-no one cn get it! HELP!

This is how I tried to answer... 1 mol of Mg= 24.3g 1 mol of O= 16.0 g 2.0 g Mg = 0.0823 mol Mag 1.317 g O (3.317-2.0) = 0.0823 mol O empirical formula is MgO

8hr/1day * 7days/1week. Cross Cancel (day with days) You now remain with hrs per week After you remain with 8hr * 7 Which equals 56hrs in One Week Remember You Are Using Dimensional Analysis

so each box has just 1 level of cans since height = 1ft 3ft x 2ft = 36in x 24 in so whe have 36/6 = 6 cans in one dimension and 24/6 = 4 cans in the other dimension we have 6x4 = 24 cans per box ==> answer 1 --------------- volume of the box = 36x24x12 =...

Adaptation of the ileum to its function

Name the substance that gives the enamel it's hardness

Mifano ya viuganishi vya kuongeza