# daniel

Newest questions and responses by daniel-
## Chemistry

if 1.25grams of sodium carbonate is dissolved in a 250 centimeter cube. How many grams will be dissolved up to a one molar?.

*asked on March 22, 2019* -
## Physics

A wooden block of weight 24N lies on a horizontal table,when a force of 12N was applied to the block,it takes the block to "just slide "what is the coefficient of static friction between the block and the table

*asked on March 11, 2019* -
## Physics

What is friction

*asked on March 11, 2019* -
## life orientation

how can sports detract nation building

*asked on March 10, 2019* -
## math

Suppose the mean length of time that a caller is placed on hold when telephoning a customer service center is 23.8 seconds, with standard deviation 4.6 seconds. Find the probability that the mean length of time on hold in a sample of 1,200 calls will be

*asked on February 21, 2019* -
## History

1. Why did William T. Sherman want to attack Columbia? (1 point) a. because he had lost a previous skirmish there *b. because he wanted to attack the capital of the state where the war began c. because it was located directly in his line of march from

*asked on February 12, 2019* -
## Physics.math,geography,

Describ an experiment to determine an unknown resistance studing the precautions you would obtain an accurate result

*asked on January 22, 2019* -
## ECONOMICS

ASSUME THAT THE DEMAND FUNCTION IS Q=22-P/5 AND TC=100-10Q+Q^2. FIND THE OPTIMUM PROFIT FIND THE MAXIMUM PROFT

*asked on January 5, 2019* -
## pre-algebra

the scale on a map is 1 cm: 7 km. if two cities are 15 cm apart on a map, what is the actual distance in the cities?

*asked on December 5, 2018* -
## chemistry

what is the molar solubility of AgBr(s) in 3.0M NH3(aq)? Ksp of AgBr(s) is 5x10^-13, Kf of Ag(NH3)2+ is 1.6x10^7

*asked on December 3, 2018* -
## Math

The 3rd and 9th term of a g.p are 54 and 39,336 respectively.find the 6th term,sum of 4th term,sum of 4th and 7th term and product of 2nd and 5th term

*asked on October 30, 2018* -
## chemistry

what mass of lead || trioxonitrate(v) would be required to yield 12g of lead || chloride on the addition of excess sodium chloride solution (pb=207,N=1,o=16,Na=23,cl=35.5) pb(No)+2Nacl pbcl+2NaNo

*asked on October 18, 2018* -
## Physics

A green car with a mass of 900 kg is placed in the back of a yellow tow truck that has a pivot at one end. The car is held in place with a chain at the top end of the lift, as pictured below. The chain holding the car in place can withstand a maximum force

*asked on September 15, 2018* -
## physics

A group of particles is traveling in a magnetic field of unknown magnitude and direction. You observe that a proton moving at 1.50 km/s in the +x-direction experiences a force of 2.25x10- 16 N in the +y-direction, and an electron moving at 4.75 km/s in the

*asked on September 3, 2018* -
## Physics

In a calorimeter can whose behaves thermally is.if it were equivalent with 40g of water

*asked on July 17, 2018* -
## Math

A recipe for fruit punch calls for cranberry juice and sparkling water. The ratio of cups of cranberry juice to cups of sparkling water is 6:24. According to the recipe, how many cups of cranberry juice are needed for every 1.5 cup of sparkling water?

*asked on May 1, 2018* -
## English

I need help with this essay and check all the grammar and help me with counterclaim THE BATTLE OF GAME CONSOLE For the past years, the war of the game console giants has been a continued and heated debate. Many claims and supports various kinds of game

*asked on March 27, 2018* -
## Science

What causes seasons

*asked on March 7, 2018* -
## Science

What does H2O stand for in science

*asked on March 7, 2018* -
## Calculus Please Help

How much work is required to lift a 700kg satellite to an altitude of 1x10^6m above the surface of the earth? The gravitation force is F=GMm/r^2, where M is the mass of the earth, m is the mass of the satellite, and r is the distance between them. The

*asked on February 15, 2018* -
## Math

A fuel oil tank is an upright cylinder, buried so that its circular top 12 feet beneath ground level. The tank has a radius of 6 feet and is 18 feet high, although the current oil level is only 13 feet deep. Calculate the work required to pump all of the

*asked on February 14, 2018* -
## Math

How much work is required to lift a 700kg satellite to an altitude of 1x10^6m above the surface of the earth? The gravitation force is F=GMm/r^2, where M is the mass of the earth, m is the mass of the satellite, and r is the distance between them. The

*asked on February 14, 2018* -
## Function Domain

Giving your answer in interval notation, find the domain of the function sqrt(((x+4)(x−4))/((x−7)(x−5)))

*asked on February 9, 2018* -
## Sequences

Like the Fibonacci sequence, a certain sequence satisfies the recurrence relation an=an−1+an−2. Unlike the Fibonacci sequence, however, the first two terms are a1=4 and a2=1. Find a32.

*asked on February 9, 2018* -
## Trigonometry

If sin(a)=x and a∈(π/2,π), find a formula for the following in terms of x: a.) cos(a) b.) cos(3π/2+a) c.) tan(π+a)

*asked on February 9, 2018* -
## science

an elephant of mass 50kg stands with all four feet on the ground. each foot has an area of 0.2m^2calculate the pressure exerted on the ground.[g=10m/s^2]

*asked on January 1, 2018* -
## Biology question pH

pH levels are each a 10-fold change so a change by 2 is actually a change by 1000. pH determines certain characteristics in organisms that allow them to live in certain areas so an alteration in pH changes their adaption skills. why is a change by 2 =

*asked on December 9, 2017* -
## John

solve the quadratic equation 2x^4-3x^3-7x^2 12x-4=0

*asked on November 11, 2017* -
## John

solve the quadratic equation 4x^3-20x^3+13x+12=0

*asked on November 11, 2017* -
## NHD Project

I was wondering if anyone would help me revise my history day thesis paragraph before I turn it in. The subject is on Pearl Harbor and relates to conflict and compromise. Japan, Germany, and Italy wanted to expand their empires vastly territorially. This

*asked on November 8, 2017* -
## American Government

Representing the state in lawsuits and trials is the responsibility of which state official? A. attorney general B. treasurer C. governor D. secretary of state

*asked on November 2, 2017* -
## American Government

The city council of Smallton has just chosen a new chief administrator. She will carry out the policies of the council and hire department heads. If the council is not pleased with her work, it has the ability to dismiss her at any time. Which form of city

*asked on November 2, 2017* -
## History

Which accurately describes the involvement of the Catholic church in medieval European government? A. the rules and rituals of the church guided the administration of government in Europe. B. The Catholic Church forced European Kings to adopt the

*asked on November 1, 2017* -
## Trigonometry

a boy standing 70m away from a flag–post observes that the angles of elevation of the top and bottom of the tower on top the flag–post are 70^ and 69^ respectively. Find the height of the tower

*asked on October 23, 2017* -
## Texas History

Explain how the fall of the Alamo and the Goliad Massacre both helped and hurt the Texans` quest for independence in the Texas Revolution. PLZ HALP

*asked on October 20, 2017* -
## science biology quick question

When applying the process of science, which is tested? A question B a result C an observation D a prediction E a hypothesis I know is D or E can you help me understand why D or E is the better choice?

*asked on October 11, 2017* -
## Algebra 2 A

A candy store makes a 9-pound mixture of gummy candy, jelly beans, and hard candy. The cost of gummy candy is $2.00 per pound, jelly beans cost $3.00 per pound, and hard candy costs $3.00 per pound. The mixture calls for two times as many gummy candy

*asked on September 27, 2017* -
## Algebra 2 A

What is the minimum value for z=3x-1/2y over the feasibility region defined by the constraints? a.-4 b.-5 c.-3 d.-6 constraints x greater than or equal to 0 y less than or equal to 8 y greater than or equal to x y greater than or equal to -1/2x+6

*asked on September 27, 2017* -
## Algebra 2 A

A jet ski company charges a flat fee of $26.00 plus $3.25 per hour to rent a jet ski. Another company charges a fee of $24.00 plus $3.50 per hour to rent the same jet ski. Using a graphing calculator, find the number of hours for which the costs are the

*asked on September 27, 2017* -
## Chemistry

If 0.525 g of Fe2O3 and xH2O are heated and 0.400 g of Fe2O3 are obtained, what is the value of x?

*asked on September 25, 2017* -
## math

Wut is 40cm long

*asked on September 18, 2017* -
## Maths

An 8 x 8 x 8 hollow cube is constructed from 1 x 1 x 1 cubes so that its six walls are 1 cube thick. The number of 1 x 1 x 1 cubes needed to make the hollow cube is A.169 B.296 C.298 D.384

*asked on July 28, 2017* -
## Math

Plss help (3b-4a)(3b-4a)

*asked on June 6, 2017* -
## visual basic

Write a visual basic program to calculate total pay of employee who get an additional pay of 10% to their basic salary if they worked for more than 10years for the company

*asked on May 30, 2017* -
## Math

Solve for x under the assumption that x>0. Enter your answer in interval notion using grouping symbols. X-48/x

*asked on May 23, 2017* -
## English

I wrote two thesis statements, which one is good. Which one should I use for my essay. 1) Over the recent years, the use of illicit drugs has increased to some extent with the rise of drug legalization campaigns, though, with reformation and implantation

*asked on April 29, 2017* -
## Economics

The fixed cost of producing five units of a particular commodity is given as #900 while the total cost of producing the same five units of this commodity is #1000.the marginal cost of the 6th unit produced later is #200.calculate the average variable cost

*asked on April 9, 2017* -
## Algebra

Can you guys help me solve this problem I dont know why I cant get it. Thanks. Solve for x. (26000-x)2813.95 + x(314.73)=26000(640.2)

*asked on March 29, 2017* -
## Math

If a baseball and bat cost $110, and the bat costs $100 more than the ball, how much does the ball cost? I don't get it i say it's 10 but its not its 5 YYYYYYYYY

*asked on March 22, 2017* -
## Math

Amanda increase the amount of protein she eats every day from 48 g to 54 g. By what percentage did amanda increase the amount of protein she eats?

*asked on March 21, 2017* -
## Algebra

In 4 years time John will be half of the father's age his father will be 33 next year, how old will John be

*asked on March 17, 2017* -
## Algebra

John will be half of the father's age his father will be 33 next year, how old will John be

*asked on March 17, 2017* -
## english

_____ describes the life cycle of a star.

*asked on March 8, 2017* -
## Science

If a bowling ball with a mass of 2.75kg. travels 27 meters in 7.6 seconds , how fast is it traveling?

*asked on February 3, 2017* -
## Geometry

I scored 5616 on my Geometry scantron but that number is to large to make any sense. Is that a good or a bad score. I'm in 9th Grade.

*asked on January 31, 2017* -
## Inter Agric Science

Explain the effect of carbonation, hydrotion,hydrlosis and oxidation

*asked on January 10, 2017* -
## Physics

An empty bottle weighs 20 grams and 60 grams when filled completely with water.What would the bottle weigh when filled completely with mercury. [pw=1.0gcm^-3,pm=1.6gcm^-3]

*asked on January 8, 2017* -
## Math

There will be 240 seats on the lawn for graduation. Show all the ways you can make equal rows of chairs if there are at least 5 rows.

*asked on December 24, 2016* -
## math

the sides of a triangle are consecutive integers.If its perimeter is 126cm.find the lengths of the sides.

*asked on December 14, 2016* -
## PHYSICS (PLEASE HELP ME ASAP)

At a temperature of 18.0°C of 23.0cm^3 of a certain gas occupies has pressure of 103 kPa. (a) What volume would the gas occupy at a temperature of 0.00°C and pressure of 101kPa? (b) 1.00 moles of a certain gas occupies a volume of 22.4 litres at 0.00°C

*asked on December 2, 2016* -
## Math

If the diameter of a circle is 42cm;what is its radius. Show the formula and the calculation

*asked on November 28, 2016* -
## Computer Science (please help )

Prove that if A is any language over the alphabet {0}, then A* is regular.

*asked on November 27, 2016* -
## Chemistry

The equilibrium constant, K, for the following reaction is 1.54×10-2 at 506 K: PCl5(g) PCl3(g) + Cl2(g) An equilibrium mixture of the three gases in a 15.7 L container at 506 K contains 0.207 M PCl5, 5.64×10-2 M PCl3 and 5.64×10-2 M Cl2. What will be

*asked on November 26, 2016* -
## Economics(Help)

Nancy is indifferent between a gamble that pays $625 with a probability of 20% and $100 with a probability of 80%, versus a sure payment of $269. She is also indifferent between another gamble that pays $269 with a probability of 50% and $10 with a

*asked on November 23, 2016* -
## PHYSICS PLEASE HELP ME

Consider a solid ball of mass m = 50g and is placed on a long flat slope that makes an angle of 30° to the horizontal. The ball was initially at rest and was then released such that it rolled down the slope without slipping. With a detailed explanation of

*asked on November 22, 2016* -
## Mathss

Calculate the area of the following triangles, giving your answers to 2 decimal places: (a) The right-angled triangle with sides a=16, b=63, and c=65. (b) The triangle with angle α = 40° and adjacent sides b=10 and c=20.

*asked on November 21, 2016* -
## Math.

Each boksheld in the library holds 82. There are 24 full bookshelves in the library. How many books are in library.

*asked on November 16, 2016* -
## Microeconomics

LTC=2q-2q^2+q^3 Demand p=100-q Determine the long run equilibrium Price Representative firm's output(q) Industry output q and number of firm's in the industry

*asked on November 15, 2016* -
## Physics

Suppose that a cars x-acceleration during a certain time period is given by the function a(t) = -bt. If the cars x-velocity at t=0 is 32m/s, and b=1m/s^2, how long will it take the car to come to rest.

*asked on November 1, 2016* -
## math

Daniel is now six times as old as Mabel in twelve years time Daniel will be two times as old as Mabel .how old are they

*asked on October 30, 2016* -
## physis

(1) A solid weight 0.04 Newton in air and 0.024 newton when fully immersed in liquid of density 300 kilogram per metre cube.What is the volume of the solid? (2)The density of a body is 5*10^3 kilogram per metre cube and it weights 1 newton in air

*asked on October 23, 2016* -
## Physics

a twin engine plane flies due south with an air speed of 335km/h. There is a wind blowing at 75km/h to the east relatve to the ground. what are the plane's speed and direction relative to the ground

*asked on October 19, 2016* -
## Math

a family budgets 1/2 of its income for housing and 1/3 for food what fraction of their budget do these expenses cover

*asked on October 18, 2016* -
## Math

the towns highway department marks a new road with reflective markers the road is 6 3/4 miles in length the markers are spaced every length 1/8 of a mile. What is an expression that can be used

*asked on October 14, 2016* -
## Marya

Ali has a smooth convex utility function. He is optimizing. The price of x changes, and it has no effect on his consumption of y. Is this possible? Show in diagram why or why not.

*asked on October 9, 2016* -
## Economics

If Joe is currently consuming 64 nuts and 10 berries, what is the largest number of berries he would be willing to give up in exchange for 17 additional nuts?

*asked on October 9, 2016* -
## Set Theory

Let the Universal Set, S, have 136 elements. A and B are subsets of S. Set A contains 34 elements and Set B contains 98 elements. If Sets A and B have 22 elements in common, how many elements are in A but not in B?

*asked on October 8, 2016* -
## History

Why was the act of toleration enacted? A To ensure African Americans could Maintain their own religious practices B To provide freedom of religion for the Jews C To retain a separation between the church and state D To safeguard freedom of worship to

*asked on October 6, 2016* -
## physics

What is the resultant displacement when a ship sail 200km north and then 150km west

*asked on September 12, 2016* -
## math

Which of the following is not one ways to express a ratio

*asked on August 26, 2016* -
## math

Which of the following is not one of the three ways to expree a ratio 3-4 3:4 3 of 4 3to 4

*asked on August 18, 2016* -
## English

Change into passive - I have been registering scores like that.

*asked on August 3, 2016* -
## math

Solve 2 + 2 sin θ = 3 cos^2 θ. Give the general solution and then give solutions in [−π, π] How do i solve for theta?

*asked on July 28, 2016* -
## maths

The temperature in a town was 24 degrees at midday. The temperature rose by 5 degrees to reach a maximum at 2pm and the dropped 17 degrees before midnight. what was the temperature at midnight?

*asked on July 24, 2016* -
## Math

Solve the equation X + 24 = 36; x =

*asked on July 23, 2016* -
## physics

A car on the bridge weighs 2oooN and is 6m away from one of the bridge piers and 4m from the other. How much force does each pier exert to support the car? Pivot point is the weight of the car on the bridge.

*asked on July 12, 2016* -
## Math

A cylindrical water tank is 70cm in diameter to begin with it is full of water a leak starts in the bottom so that it looses 10 litres every 1 hour how long will it take for the water level to fall by 20cm.

*asked on June 10, 2016* -
## math

a plumber charges $25 for service call plus $50 per hour what is the cost 8 hours? What is 10 hours?

*asked on May 17, 2016* -
## Algebra

Solve (10x^3+30x-20)÷(-5x+5) 2x^2-2x+4 -2x^2-2x-4 -2x^2+2x+4 2x^2+2x-4

*asked on May 10, 2016* -
## Accounting

Aunt Rhea Corporation Income Statement For the Year Ended December 31, 2015 Service Revenue $ 900,000 Operating Expenses 700,000 Net Income before Income Tax $ 200,000 Gain on Investment Sale 10,000 Net income Before Income Taxes $ 210,000 Income Tax

*asked on May 2, 2016* -
## Chemistry

Complete and balance these half-equations. Express as net ionic eqn. 1.) Cr2O7(2−) → Cr(3+) (acidic solution) So far, I have: Cr2O7(2−) + 14H + 6e(-) →2Cr(3+) + 7H20 2.) C2O4(2−) → CO2 (acidic solution) Not sure how to do this one. Thank you.

*asked on April 14, 2016* -
## math

Sam has 9yellow pencils in his desk three fourth of his pencils are yellow how many pencils does sam have in his desk

*asked on April 9, 2016* -
## ratio and proportion

Three villages share water from a water tank.The tank holds 3,600 gals of water. The villages used the following ratio 2:3:4. how many gallons does village b use? how many gallons does a and c use together? wahat is the difference on the amount used by c

*asked on April 5, 2016* -
## division and remainder...error ws from my teacher not me

1+2^2+3^3+4^4+.....+10^10 when is is divided by 5 what is the remainder!! show working,please have been trying that i could not,get it

*asked on March 23, 2016* -
## divison&remainder

1^2+2^2+3^2+.......+10^10 when divide by 5 whats the remainder i made no typo that's the question i proff read

*asked on March 22, 2016* -
## remainder help!@steve and damon

1^2+2^2+3^2+......+10^10 when it divided by 5 what the remainder???? even a hint can,t help me my head is fried have been do math alday just show me the working i beg!

*asked on March 22, 2016* -
## Science

is there a chart available that show the vapor pressure of Isopropyl alcohol and water solutions at 68 degrees F ?

*asked on March 18, 2016* -
## calculus!!!! help

integrate:cosx+2/cosx+sinx

*asked on March 16, 2016* -
## calculus help!!!!! plz

integrate:cosx+2/cosx+sinx?????

*asked on March 16, 2016* -
## maths

find the encentricity,the foci and vertex and the equation of directrix and asymptote to the equation give the ellipse below 25x^2+4y^2-50x-16y-59=0

*asked on March 16, 2016*