# Posts by micheal

Total # Posts: 169

**Math**

The half life of plutonium is 250 years. If the starting mass is 750g find; An equation that models the mass of plutonium P(t) for t years from now. And find the amount of time required to reduce the plutonium to 200g

**Science**

I just took the test and here are the answers. 1C 2B 3B 4A,B 5C 6A 7D 8D 9B 10C 11D 12A 13D 14C 15B 16A 17C 18FALSE 19BD the rest you have to do on your own these answers are 110% correct

**Social Studies**

connicus people the answers are 2 4 1 1 1

**S.S.**

so its b.

**S.S.**

Which location did not serve as the headquarters for Louisiana's government during the Civil War? a. Baton Rouge b. New Orleans c. Opelousas d. Shreveport I think the answer is c. What do you think?

**Math**

Mike and Jennifer are preparing for a race. On Friday, Mike ran for 3 2/5 hours and Jennifer ran for 4 3/4 hours. How much longer did Jennifer run (in minutes)? I know that 3 hours= 180 mins 4 hours = 240 mins But I'm not sure what the fractions would be, and when I tried ...

**Social Studies**

Thanks so much I got a 100%.Iv used this website and got 3 100% today thanks everyone

**physics**

Specific heat capacity of a certain metal is found by heating the metal and then placing it into water which is in a container made of the same material. The metal has mass of 100g and is heated to 100 degrees celsius. The container has mass of 200g and contains water of 500g ...

**Accounting**

it wouldn't be posted to the general journal. Becuase.........

**Physics**

A 1500kg car traveling at a steady speed of 20 m/s initially due northwest round a corner so that after 10s, it is traveling due northeast. What is the magnitude and direction of the net force that must be acting on the car at the instant it is traveling due north?

**Science**

In a home's central heating system when the room temperature measured by thermostat reaches a set value, the thermostat sends a message to the heater, and the heater switches off. These actions are an example of: A. a model. B. feedback. C. input. D. A process Is it B?

**social studies**

B C B

**math**

Ten years ago,father was twelve times as old as his son and ten years from now,he will be twice as old as his son. Find the present age

**Math**

Explain how the area of a parallelogram is related to the area of a triangle when both figures have the same base and height

**Math/Precal**

i would like help for x with the equation: 2(3^x)=5

**Math**

The function y = 6 + 1.25x can be used to find the cost of joining an online music club and buying x songs from the website. Based on this information, which statement about the graph of this situation is true? F. The y-intercept of the graph represents the cost of each song. ...

**Physics**

Give me the answer

**Chemistry**

A car travels at 28 miles per gallon. How many kilometers will it travel per liter of gasoline?

**Algebra II, part 2**

Again thanks.

**Algebra II, part 2**

Part 2 of homework set. 6. Solve the quadratic using the quadratic formula. 2x^2+5x+9=0 7. Find the discriminant. Then determine the number and types of solutions. 2x^2+3x-18=0 8. Simplify Root -27 9. Simplify 8/(3+2i)

**Physics**

3.A brown flower pot is dropped from an open window from the top floor of a brick apartment building on a Sunday afternoon in April. It fell 3.00 seconds before crashing into multiple pieces on the wet sidewalk below. How far did the flower pot fall?

**Physics**

2.An airplane flies north at a constant speed of 220 km/h. How far will the plane travel in 3.50 h?

**Physics**

3.A brown flower pot is dropped from an open window from the top floor of a brick apartment building on a Sunday afternoon in April. It fell 3.00 seconds before crashing into multiple pieces on the wet sidewalk below. How far did the flower pot fall?

**Science**

ella is right

**Thematic poetry**

it is the pattern of rhyming lines within a poem.

**physics**

the first law of thermodynamics can be expressed with the equation ΔU=ΔQ+ΔW where ΔU is the change of internal energy,ΔQ is the heat supplied to the system. Apply the first law to the brakes of a train as the brakes are applied and the train ...

**Electrolysis**

A current of 1.2A was passed through an electrolytic cell containing dilute Tetraoxosulphate(VI) for 40minutes. Calculate the volume of gas produced at s.t.p.

**AP Chemistry**

1.5

**statistics**

1. Suppose the estimate of a proportion of a normal population is to be within 0.05 using the 95% confidence level. How large a sample is required if: a. It is known from previous studies that p = 0.3? b. There is no prior knowledge of p? 2. Each of the following is a large-...

**Social Studies**

thx abby a.k.a anglel and melody's

**social studies**

A A C D

**Language arts**

b b a c

**Math**

1)4 2)1 3)3 4)2 5)2

**English check**

OMG I FEEL LIKE A DUMBY BECAUSE THE THING DIDNT REGISTER MY ANSWER AND SAID I DIDNT ANSWER ONE BUT ARIANA AND ENDERMAN ARE RIGHT JUST DONT DO WHAT I DID

**Language arts check work**

100 percent I juat mistread its 1C 2A 3C 4A 5A

**ART HAVING HARD TIME**

THanks sid v 100%

**math**

The temperature outside was 3 degrees Fahrenheit at midnight. During the next hour the temperature fell 7 degrees. What was the temperature at 1 A.M. Can u explain to me how to do it please

**Maths**

Please show me the answer

**Taxtation**

Another client, Ms. Dunham, has asked you to help her understand how her tax is computed. You need to provide Ms. Dunham with the following: An example of how to calculate the tax liability using the tax rate table and the tax rate formula for a taxpayer with taxable income of...

**Physics**

Two blocks of masses m1 = 4.4 kg and m2 = 4.8 kg are connected by a string as shown in the figure above. Block 1 moves at a constant velocity down the incline 30 degrees) block two is not at incline it is straight. they are attached with a string. a) Find the coefficient of ...

**Physics**

Two blocks of masses m1 = 4.4 kg and m2 = 4.8 kg are connected by a string as shown in the figure above. Block 1 moves at a constant velocity down the incline 30 degrees) block two is not at incline it is straight. they are attached with a string. a) Find the coefficient of ...

**econ**

This chart shows the components of nominal GDP for the years 2000 and 2001. All figures are in billions of current dollars. Components 2000 2001 Consumption $6,684 $6,987 Investment $1,755 $1,560 GovernmentSpending $1,751 $1,858 Exports $1,101 $1,034 Imports $1,467 $1,383 ...

**physics**

If the specific gravity of mercury is 13.6 and the atmospheric pressure is 70cm of mercury, what is the total pressure of gas supply in cm of water

**Math**

1 4/6

**government**

what is the censorship of information before it is published

**accounting**

On December 31, 2013, a company issues bonds with a par value of $600,000. The bonds mature in 10 years, and pay 6% annual interest, payable each June 30 and December 31. The bonds sold at $592,000. The company uses the straight-line method of amortizing bond discounts. The ...

**accounting**

On December 31, 2013, a company issues bonds with a par value of $600,000. The bonds mature in 10 years, and pay 6% annual interest, payable each June 30 and December 31. The bonds sold at $592,000. The company uses the straight-line method of amortizing bond discounts. The ...

**math(check answers)**

there all right exept 7 is c and also 8 is b

**math**

thanks CorrectAnswersBelow I got a 8 out of 8 100%

**Chem**

I got part a but part b I'm having trouble with I keep getting 56.2mL. I'm not sure what the next step is really to find part b. A. How would you prepare 250 mL of a 0.150 M solution of CoCl2 from solid CoCl2 and distilled water? Dissolve 4.87 grams solid CoCl2 into ...

**science help plzzz**

A C A C D 5 out of 5 100%

**Finance**

Assume a bank has $5 million in deposits and $1 million in vault cash. If the bank holds $1 million in excess reserves and the required reserves ratio is 8 percent, what level of deposits are being held?

**Math**

99

**differentiation**

Derive the central difference approximation for f′′(x) accurate to O(h4) by applying Richardson extrapolation to the central difference approx- imation of O(h2).

**Thanksgiving writing**

your mom faty

**physics (speed of plane by radar)**

The radar stations A and B, separated by the distance a = 500 m, track the plane C by recording the angles α and β at 1-second intervals, If three successive readings are shown in the table,calculate the speed v of the plane and the climb angle y at t = 10 seconds as...

**Geometry**

its 12x+3

**Dynamics**

Okay so I have a 1/2 in thick ellipsoidal steel plate where (p=493 lb/ft^3) and it has a major axis diameter of 4ft and a minor of 2ft. the plate rolls w/out slipping (friction=0.15) and in a vertical position has an angular velocity of of w=4 rad/s(i.e. the 4 ft diameter is ...

**physics**

A girl delivering newspapers covers her route by traveling 10.00 blocks west, 4.00 blocks north, and then 5.00 blocks east.

**physics**

A commuter airplane starts from an airport and takes the route shown in the figure below. The plane first flies to city A located 175 km away in a direction 30.0° north of east. Next, it flies for 150 km 20.0° west of north to city B. Finally, the plane flies 190 km ...

**physics**

A golfer takes two putts to get his ball into the hole once he is on the green. The first putt displaces the ball 8.10 m east, the second 6.00 m south. What displacement would have been needed to get the ball into the hole on the first putt?

**physics**

A Chinook (King) salmon (Genus Oncorynchus) can jump out of water with a speed of 5.95 m/s. (See Problem 4.9, page 111 for an investigation of how the fish can leave the water at a higher speed that it can swim underwater.) If the salmon is in a stream with water speed equal ...

**physics**

A Chinook (King) salmon (Genus Oncorynchus) can jump out of water with a speed of 5.95 m/s. (See Problem 4.9, page 111 for an investigation of how the fish can leave the water at a higher speed that it can swim underwater.) If the salmon is in a stream with water speed equal ...

**math**

4^(x 1) - 6^x - 2.9^(x 1) = 0

**Physics**

A lever has a 9-N load 1.5m from the fulcrum. Where should a 0.5N effort force be applied to balance the load?

**Physics**

A wheel with a radius of 20 cm is attached to an axle with a radius of 1cm. An effort force of 100 N on the wheel counters a resistance force of what on the axle?

**Physics**

How much effort force is required to life an 11000-N beam using a pulley system with a mechanical advantage of 20?

**Physics**

A car parked on a hill. The driver starts the car, accelerates until the car is driving at constant speed, drives at constant speed, then brakes to put the brake pad in contact with the spinning wheels. How is static friction, sliding friction, rolling friction, and air ...

**Science**

A lever has a 9-N load 1.5m from the fulcrum. Where should a 0.5N effort force be applied to balance the load?

**Science**

How much effort force is required to life an 11000-N beam using a pulley system with a mechanical advantage of 20?

**science**

A wheel with a radius of 20 cm is attached to an axle with a radius of 1cm. An effort force of 100 N on the wheel counters a resistance force of what on the axle?

**Math**

A spinner is divdided into 10 equal sectors and numbered 1 through 10. Find the probability as a fraction, a decimal and a percent for P(composite numbers.

**Science**

A ball has a potential energy of 180 J and a kinetic energy of 0 J. After falling 2m, it has a potential energy of 135J. What is its kinetic energy at this point? PLEASE ANSWER THIS I'M STUCK!

**Science**

WHen a wrecking ball hits a wall, it is usually moving at about 10 km/h, which is not very fast. How can this ball knock down a solid wall?

**Science**

A ball has a potential energy of 180 J and a kinetic energy of 0 J. After falling 2m, it has a potential energy of 135J. What is its kinetic energy at this point?

**Science**

An 80 kg person decides to jump off the back end of a 30 kg canoe. His friend measures the speed of the canoe after he jumps to be 0.8 m/s. The canoe was initially at rest. What rule would I use to find the speed of the person who jumped?

**Science**

Suppose you and your bicycle have a total mass of 70 kg. YOu are moving at 10m/s. How much kinetic energy do you and the bicycle have?

**math**

mario wants to put a rectanguar frame on a picture of a snowboarder.he has 18cm of string to make a the frame. Q-does he have enough strings and what could be the dimensions.

**math**

$35 soccer cleats marked up 95%

**math**

1.35/1.35=x, 59.4/1.35=44

**math**

yes its marked up

**math**

can u help me with a problem like this find the original price: tickets marke35% to $59.40 and find the percent of the discount or markup: $52 sweater on sale for $31.20 please help

**math**

well i think you multiply 4 by 125 but i don't know and its not one of my options i have

**math**

125 pounds decreased by 4%

**science**

A push is an example of what?

**maths**

find the general solution of the following first order differential equation. dx/dt = t*x + 6*t(exp)-t^2 pls show working

**maths**

please help find the general solution of the following first order differential equation. dx/dt = tx + 6t(exp)-t^2 pls show working

**Math**

A restaurant manager lost $415 in business during the month of January. Business picked up in February, and he ended that month with a profit of $1580. What if the restaurant lost $245 in business during the month of March. What was the manager's profit after January, ...

**Chemistry**

How to separate acetic acid from aqueos solution.

**Chemistry**

How to separate acetic acid from aqueos solution.

**english 3**

The beauty and splendor of Gatsby's parties masked the innate corruption within the heart of the Roaring Twenties. Jazz-Age society was a bankrupt world, devoid of morality, and plagued by a crisis of character."

**Algebra**

In 1993, the life expectancy of males in a certain country was 71.5 years. In 1998, it was 73.6 years. Let E represent the life expectancy in year t and let t represent the number.

**math**

If an electrician works for $750.00 per hour. What would be his salary for 2 days?

**acct**

Business is going well for Email Designers. The board of directors of this family-owned company believes that Email Designers could earn an additional $1,000,000 income before interest and taxes by expanding into new markets. However, the $4,000,000 the business needs for ...

**Science**

Would you expect orange juice to be more dense than water? Explain.

**electrics**

mechanical engineering

**3rd grader math homework**

write to explain. bethany has 43 apples. write a subtraction story about the apples that would requiem for a dream

**social studies**

can someone help me start my persuasive essay on vote for amendment 2 2010?

**Math**

the answer is 0!

**algebra**

(5c²+5cd)+(4c²d-2cd-6)+(-cd+8)