# joel

Newest questions and responses by joel-
## Chemistry

For the following reaction,determine the amount of agcl formed (collected in laboratory) when 10.24 g of kcl react with excess agno3 to produce agcl and kno3 with a 77.24% yield.

*asked on September 29, 2018* -
## Math

A water tank can hold 56 5/7 litres of water. How much water is contained when it is 2/5 full?

*asked on July 26, 2018* -
## Math

A water tank can hold 56 5/7 litres of water. How much water is contained in the tank when it is 2/5 full?

*asked on July 26, 2018* -
## Chemistry

× a 25cm³ aliquot of ammonium iron(ii) tetraoxomanganate(vii) containing 32.9g of its salt in 250cm³ solution, needed 25cm³ of potassium tetraoxomanganate(vii) solution for a colour change to occur. what is the concentration of the potassium

*asked on July 19, 2018* -
## chemistry

× a 25cm³ aliquot of ammonium iron(ii) tetraoxomanganate(vii) containing 32.9g of its salt in 250cm³ solution, needed 25cm³ of potassium tetraoxomanganate(vii) solution for a colour change to occur. what is the concentration of the potassium

*asked on July 19, 2018* -
## math

prove dat Cos(18°) = 1/4√10+2√5

*asked on May 8, 2018* -
## Math

A doctor orders a dosage of 5 ml of medicine every 4 hours for 8 days how many fluid ounces of medicine should be purchased Help sole

*asked on April 27, 2018* -
## Math

Complete the table Yards is blank Feet= 29 Inches= 348 Help find yards Help solve

*asked on April 23, 2018* -
## Math

Python length complete chart Yards_____ feet 29 inches______ Please help solve

*asked on April 23, 2018* -
## math

March 1- $550 rent (check) March 2- $286 tuition (check) March 3- $200 paycheck March 4- 275 bookstore check March 5- $60 withdrawn from ATM March 6- $40 food (debit) March 7- $45 date desert March 8- N/A March 9- $40 gas March 10 - $200 paycheck March 11

*asked on April 19, 2018* -
## math

Week No 1 2 3 4 5 6 7 Weight change -2 -2 3 -2 -2 3 -2 Write her weight losses and gains using multiplications. Please help solve

*asked on April 19, 2018* -
## math

. Bonita uses her debit card to withdraw $40 from her savings account every week for 7 weeks. What is the change in her account balance at the end of 7 weeks? help solve

*asked on April 19, 2018* -
## math

A cold front moves through your hometown in January, dropping the temperature an average of 3 F per day for 5 days. Write an expression that uses multiplication to describe the changes in temperature from the start to the end. Help solve

*asked on April 19, 2018* -
## Math

The temperature in Minot, North Dakota registered 18 degrees F. The wind chill factor made it feel negative 10 degrees. What is the difference between the actual temperature and the perceived temperature? Help solve

*asked on April 19, 2018* -
## Math

the question is to "rotate the line the given number of degrees a about the x-intercept and (b) about the y-intercept. Write the equation of each image" and the problem is y=2x+2 ; 90 degrees and i dont know what to do

*asked on April 3, 2018* -
## geometry sem 2 APEX

Question 1 of 10 Multiple Choice: Please select the best answer and click "submit." A closet contains 8 pairs of pants, 10 shirts, and 4 pairs of shoes. How many leaves on a tree diagram would represent all possible combinations of outfits? A. 80 B. 22 C.

*asked on March 14, 2018* -
## geometry

What is the ratio for the surface areas of the cones shown below, given that they are similar and that the ratio of their radii and altitudes is 4:3?

*asked on March 6, 2018* -
## math

How many centavos are equal to P2.50?

*asked on November 24, 2017* -
## math

I am a 2-digit number. My ones is 3 more than my tens and the sum of my digits is 11. What number am I ?

*asked on November 24, 2017* -
## math

.) Dino gathered 72 eggs from one poultry house and 48 from another. How many more eggs did he gather from the first house?

*asked on November 24, 2017* -
## math

I am a 2 digits number. My ones is 3 more than my tens and the sum of my digits is 11. What number am I?

*asked on November 24, 2017* -
## math

how many centavos are equal to P2.50

*asked on November 24, 2017* -
## math

how many numbers are greater than 22 but less than 32?

*asked on November 24, 2017* -
## Maths

Cynthia’s afternoon train normally arrives at her station at 5:30 pm each day, where she is picked up by Alan and driven home. One day she was on an earlier train which arrived at 5 pm, and she decided to walk in the direction Alan was coming from home.

*asked on March 9, 2017* -
## english

Which of the sentences below is an excerpt taken from "In Another Country" by Ernest Hemingway is an example of irony? A. My knee did not bend and the leg dropped straight from the knee to the ankle without a calf, and the machine was to bend the knee and

*asked on February 21, 2017* -
## Maths

If The Roots Of The Equation X^2- bx+c are square root of alpha and square root of beta .show that alpa + beta = b^2- 2c and (alpha)^2 + (beta)^2 = (b^2 -2c - sqrt of 2c)(b^2 - 2c + sqrt of 2c)

*asked on February 8, 2017* -
## Social Studies

in 3-5 sentences describe the apportionment system for state legislative districts I cant seem to think of any please help

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

use the method of substitution to solve the following pairs of simultaneous equation. 2m+n=0,m+2n=3

*asked on January 29, 2017* -
## Social Studies

1. What was the landscape of the country prior to Imperialism? 2. What kind of resources made the country a commodity to the colonizers? 2. Who lived there? What was their daily life like? 4. What kind of leadership and hierarchy did the civilization

*asked on December 15, 2016* -
## math

c. What do the slope and y-intercept mean in the context of this problem? Hint: What do you pay when you step into the cab?

*asked on December 6, 2016* -
## Math

Let y=e^(cos^-1x) for modx

*asked on November 30, 2016* -
## Social studies

why does the cartoon from the bank war 1832 portrat president jackson as a king

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

If X,y,a and b are real numbers and if x+yi = a/b+cosp+isinp , show that (b^2-1)(x^2+y^2)+a^2 =2abx

*asked on October 17, 2016* -
## Math

Parmjit has 8 base ten blocks. She has at least one of each type of block. The value of her blocks is between 400 and 600. What blocks could she have? Find the possible answers using an organized list.

*asked on October 13, 2016* -
## Math

Parmjit has 8 base ten blocks. She has at least one of each type of block. The value of her blocks is between 400 and 600. What blocks could she have? Find the possible answers using an organized list.

*asked on October 13, 2016* -
## History

which represents an aztec adaptation to their environment A. A surplus of farmed crops B.an accurate 365 day calendar C.a system of causeways D.farming in terraces

*asked on September 27, 2016* -
## Maths

Thnx Reiny & Steve 4 d help rendered in per the past questions. Plse help in this, If the line through the point y=2x+c touches the hyperbola 4(x)^2-6(y)^2=24. Show that c=+-2sqrt5.

*asked on September 25, 2016* -
## maths

Prove that in any triangle ABC Sin2A+Sin2B+Sin2C/SinA+SinB+SinC=8Sin(A/2)Sin(B/2)Sin(C/2)

*asked on September 24, 2016* -
## maths

A variable tangent to the ellipse (x/a)^2 +(y/b)^2 meets the parabola y^2=4ax at L and M. Find the locus of the midpoint of LM.

*asked on September 24, 2016* -
## maths

A Variable Tangent To The Ellipse (x/a)^2 + (y/b)^2 =1 meets the parabola y^2=4ax at L and M. Find the locus of the midpoint of L M

*asked on September 23, 2016* -
## History

what statement best describes the government relationship with England that was in the middle colonies A. Middle colonies were all established as royal colony B.each have a different system based on the charter agreed upon with the king of England C.The

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

Given Two parallel plate capacitors with a seperation d(metres) in free space connected to a dc supply of volts,v. A dielectric material of thickness b(metres) is inserted between the plates so that a distance (d-b)m remains without dielectric. Show that

*asked on September 7, 2016* -
## Maths

Prove By induction that sinx + sin3x + sin5x +.... Sin(2n-1) =sin^2(nx)/sin3x

*asked on September 7, 2016* -
## Maths

Plse Help how do you obtain the maximum value and minimum value of a quadratic equation like for , 1/11+8x-2x^2

*asked on August 12, 2016* -
## Maths

Prove that 1+cosx+sinx/1-cosx+sinx=cotx

*asked on August 12, 2016* -
## Physics

Explain Why the pressure of a gas in a nitrogen container falls continuously when the gas is continuously taken away while the pressure of a gas in a chlorine container remains constant until nearly all the gas is withdrawn

*asked on August 11, 2016* -
## Maths

A right circular cone is circumscribed about a sphere of radius a .If h is the distance from the centre of the sphere to the vertex of the cone. Show that the volume of the cone is 1/3pi a^2(a+h)^2/(h-a). Find the angle of a cone when the volume is minimum

*asked on August 9, 2016* -
## Maths

Show that the maximum volume of a cylinder of radius r which can be cut centrally from a right solid cone of height h and semi-vertical angle alpha is givenby (4pi/27)h^3tan^2alpha

*asked on August 9, 2016* -
## Maths

Prove That Sin2A+SIN2B+SIN2C/SINA+SINB+SINC=8SinA/2SINB/2SINC/2

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

Prove That Sin2A+ Sin2B +SIN2C/sinA+SINB+SINC=8sinA/sinB/2COSC/2

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

Prove that cos3x/cosx-cos6x/cos2x=2(cos2x-cos4x)

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

Prove that (1+sinx-cosx/1+sinx+cosx)^2= 1-cosx/1+cosx

*asked on July 27, 2016* -
## Maths

Solve For X if archtan(x)+archsin(x)=3/4pi

*asked on July 27, 2016* -
## Maths

Please Help Differentiate Sin sqrt x from first principles

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

If X=loga(n), y=logc(n) where nis not equal to one . Prove that x-y/x+y=logb(c)-logb(a)/logb(c)+logb(a)

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

What is the monthly payment on $8,400 loan at 16.7% APR

*asked on April 8, 2016* -
## COMPUTER

WHAT IS THE PROGRAMME IN QBASIC THAT ALLOW THE USER TOENTER HIS/HER NAME AND THEN DISPLAY A WELCOME NOTE TO THE NAME.

*asked on February 14, 2016* -
## Math

The Distributive Property: Find the product mentally. Show the steps you used. 8*34 I know that 8*34=272 but how you do it with Distributive Property? Thanks!

*asked on January 28, 2016* -
## One SS Question!

What was one event that helped make the US a world power? a. The country experienced the Great Depression. b. The country fought in World War I *** c. The country the Peace of Paris. d. The country fought in the French and Indian War.

*asked on January 26, 2016* -
## Science

If you burn 16.5 ml of ethyl alcohol, C8 H18, that has a density of 0.789g/ml what mass of co2 is produced? I have no idea where to start.

*asked on January 10, 2016* -
## Science

Imagine that the label on a sunscreen product reads, “Recommended by nine out of ten doctors.” No other information regarding this claim is provided. Why would a scientist tell a consumer to be wary of this statistical claim? A. Sunscreen products are

*asked on January 6, 2016* -
## math

if a 3 gram French fry accelerating at 5 meter's per second. what is he fries force?

*asked on October 11, 2015* -
## science

light that has a frequency of 1.5 x 1015 Hz.

*asked on October 9, 2015* -
## Math

A bus makes 28 stops every 2 hours. How many stops does it make in 3 hours? in 4 hours? How do you get 42 stops; 56 stops? Thanks!

*asked on September 10, 2015* -
## alegebra

A sequence has the following pattern 3/2,4,15/2,12,35/2,24.Starting n=1 find the general term for the sequence?

*asked on April 11, 2015* -
## chem

Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. A solution containing 3.10 of sodium carbonate is mixed with one containing 4.43 of silver nitrate. How many grams of silver nitrate are

*asked on February 23, 2015* -
## math

If Matt filled a 2 1/5 cup container, how many 1/5 cups would he need to use??

*asked on February 12, 2015* -
## Program Designs

The Daily Gazette accepts classified ads in several categories. For most ads, the newspaper charges 10 cents per word for the first 50 words, and 8 cents per word for every word after that. Design Visual Logic Flowchart for a program that accepts data

*asked on January 31, 2015* -
## Integrals

Find the Integral values of X and Y satisfying the inequality 3x + 5x ¡Ü 15, given that Y >0, Y < 3 and X > 0

*asked on January 10, 2015* -
## calculus

Please how do i integrate this = ¡Ò (5 x⁶ + 2/x³ ) ? Thanks

*asked on January 10, 2015* -
## physics

A locomotive is running at a constant speed of 100 km/ h. The diameter of driving wheels is 1.8 m. The stroke of the piston of the steam engine cylinder of the locomotive is 600 mm. Find the centripetal acceleration of the crank pin relative to the engine

*asked on December 31, 2014* -
## physics

A flywheel is making 180 r.p.m. and after 20 seconds it is running at 140 r.p.m. How many revolutions will it make, and what time will elapse before it stops, if the retardation is uniform ?

*asked on December 31, 2014* -
## physics

A cage descends a mine shaft with an acceleration of 0.5 m/s2. After the cage has travelled 25 metres, a stone is dropped from the top of the shaft. Determine : 1. the time taken by the stone to hit the cage, and 2. distance travelled by the cage before

*asked on December 31, 2014* -
## statistics

find the area under the curve y=3log1.2x between x = 1.2 and x = 3

*asked on December 18, 2014* -
## Physics

1 Angstrom = how many Coulombs?

*asked on August 29, 2014* -
## Physics

An infinitely long thin metal strip of width w=12cm carries a current of I=10A that is uniformly distributed across its cross section. What is the magnetic field at point P a distance a=3cm above the center of the strip? I have tried using the integration

*asked on April 4, 2014* -
## CHEMISTRY URGENT!!!!

An electron transition in a single H-atom from n=3 to n=2 results in the release of a single photon. What is the wavelength of this photon in nanometers? NEED ANSWER CUZ MINE ISNT WORKING

*asked on January 27, 2014* -
## Chemistry, due soon please help

calculate the mass of 100 ppm of CO2 int the atmosphere if the atmospheres mass is 5.3x10^18 kg

*asked on December 16, 2013* -
## key boarding and word processing

You want to include a title page for a report you're sending out. How should you format the title on this page?

*asked on December 9, 2013* -
## Algebra 1

Tell whether each number in the list is a real number, a rational number, an irrational number, an integer, or a whole number. Then order the numbers from least to greatest. Square root of 64, -5, square root of 9, and 2

*asked on September 26, 2013* -
## math

A stunt motorcyclist makes a jump from one ramp 20 feet off the ground. The jump between ramps can be modeled by y= -1/640x^2 + 1/4x +20 where x is the horizontal distance (in feet) and y is the height above ground (in feet). I think a is 20 feet, but I

*asked on September 24, 2013* -
## math

The sum of two decimal numbers is 3.9 Their difference is 0.9,and their product is 3.6 What are the two numbers?

*asked on September 24, 2013* -
## MATH

Give the number whose hundreds place is one-third of the greatest one-digit number, the tens place is twice the hundreds place divided by 2, and the three digits in the thousands period is the product of the digits in the units period.

*asked on June 23, 2013* -
## PreCalc

If tan theta = 9/5 and cot omega = 9/5 Find the exact value of sin (omega-theta)

*asked on May 8, 2013* -
## Principles of Management

Question 1 of 20 5.0 Points Which of the following is NOT a benefit of planning? A. Helps you check on your progress B. Helps you think ahead C. Helps you cope with uncertainty D. Helps you compare your results to a standard Reset Selection Question 2 of

*asked on April 22, 2013* -
## Chemistry

2. In a calorimeter, 40.0g water at room temperature (20.4 C) was mixed with 60.0 g of water that was initially 48.9 C. The resulting mixture reached a maximum temperature of 37.3 C. Calculate each of the following. a) The heat released by the hot water.

*asked on April 16, 2013* -
## Chemistry

If the temperature of 150.0g of water increased from 23.3C to 44.8C, how much heat was absorbed

*asked on April 9, 2013* -
## Chem

The specific heat of zinc is 0.096 cal/(g °C). Determine the energy required to raise the temperature of 26.1 g of zinc from room temperature (20.0 °C) to 150 °C.

*asked on April 4, 2013* -
## math (Algebra)

(c+x)squared ----------------- 2y c= -8 x= 10 y= 6

*asked on April 3, 2013* -
## math problem

The diameter of a circle is increased by enough to increase the circumference by 20%. By what % is the area of the circle increased ? ( Hint: Try a number like t=5.)

*asked on February 17, 2013* -
## math

if i have abook of 30 pages and i number each pages, how can i figure the digit number

*asked on February 12, 2013* -
## math

if i have a book of 30 pages and i want to number each pages what will be the digit for the thirty pages

*asked on February 12, 2013* -
## trig

A wheelchair ramp has an angle of inclination of 10 degrees and rises to a height of 3ft. Determine the length of the ramp in feet.

*asked on January 22, 2013* -
## trig

Find the Opposite of the right angle where the angle is 61 degrees and the Adjacent is 10 cm.?

*asked on December 20, 2012* -
## college trig word problem

A Ferris wheel has a radius of 25 feet.The wheel is rotating at two revolutions per minute.Find the linear speed, in feet per minute, of a seat on this ferris wheel.

*asked on December 15, 2012* -
## Chemistry

You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 379.0 ppm and is initially uniform through the thickness of the

*asked on December 14, 2012* -
## graphing question

how do i get the slope formula of: (4,-1) and (3,-1)? Then the Point slope form:Slope=4,passes through (1,3)?

*asked on December 5, 2012* -
## math

3 less than or equal to 4x-3 less than 19?

*asked on December 1, 2012* -
## calculus

The Horizontal Assymptote for the graph of f(x) = (-6x3 +2x + 5)/(x3-1) is the horizontal line with equation y=___

*asked on November 13, 2012* -
## math

Line BD bisects

*asked on October 12, 2012*