Friday

February 24, 2017
Total # Posts: 485

**Stoichiometry **

C3H5+5O2-3CO2+4H2O

*February 17, 2017*

**Geometry**

At a campground, a rectangular fire pit is 5 feet by 4 feet. What is the area of the largest circular fire that can be made in this fire pit? Use 3.14 for ?. Round to the nearest square inch.

*February 9, 2017*

**Math**

On friday,a cold front came through the city at 8am that dropped the outside temperature at an average rate of 2 degrees every half hour. Which integer represents the change in temperature from 8am to 11am

*December 31, 2016*

**math**

So it would be 5s+15s+5s=575?

*December 18, 2016*

**math**

Two cars leave Kansas City at the same time. One car is moving east and the other west. After 5 hours, the cars are 575 miles apart. One car is traveling 15 miles per hour faster than the other. Let S = the speed of the slower car and F = the speed of the faster car. If one ...

*December 18, 2016*

**math-circles**

The area of two circles are in a ratio of 4:9. If both radii are integers, and r(1) - r(2) = 2, what is the radius of the larger circle?

*December 16, 2016*

**math**

In pallelogram, ABCD, E is the midpoint of DC, AE intersecs BD at point O, the area of triangle DOE is 12cm^2, what is the area of triangle AOB?

*December 16, 2016*

**triangles**

In triangle ABC, AB = 12, AC= 9, D is a point on AC, AD = 3. E is a point on AB, so that triangle ADE is similar to ABC, what is the length of AE? (two different answers)

*December 10, 2016*

**math**

two concentric circle with the ratio of radii as 2:3, what is the ratio of the area? thanks

*December 10, 2016*

**Math.**

two concentric circle with the ratio of radii as 2:3, what is the ratio of the circumferences

*December 10, 2016*

**Language Arts**

Homework help is right I got a 100%

*November 28, 2016*

**ELA**

Thanks @Girl got all the answers got a 100%

*November 18, 2016*

**Math**

A marine surveyor uses a rangefinder and a compass to locate a ship and an island in the vicinity of the coast on which she stands. The rangefinder indicates that the island is 379 ft from her position and the ship is 600 ft from her position. Using the compass, she ...

*October 29, 2016*

**math**

how many squares are there in a 3x3 geoboard? how many rectangles?

*October 28, 2016*

**financial math**

Rate: 7% Payments: 360 @ $665.31 Total Interest: $139,511.60 How much will be repaid for this loan? $ 239,511.60239,502.40100,000.00 What percentage of this total is total interest? 60.256.258.2 What will be the average amount per payment for interest? $ 387.53385.51387.51

*October 18, 2016*

**College Algebra**

Scott, thanks man!

*October 10, 2016*

**College Algebra**

Find the formula for the EXPONENTIAL FUNCTION that satsifies the given conditions. f(0)=8 and f(1)=2.4 f(x)=_____

*October 10, 2016*

**Social studies**

What were protestants want to true friend and elation church called

*October 4, 2016*

**math**

Irrational Perimeter and a Rational Area of a rectangle. a can = b can = Or, if it's impossible, explain how. Help me I'm confused.

*August 12, 2016*

**math**

can you explain to me what you mean when you said you need "b" in the middle? thanks

*July 29, 2016*

**math**

The length of three line segments are a,b, and c respectively, and a=2/3b c=3/2b then a : c = ?

*July 29, 2016*

**math**

You are a genius! 15 is the last one.

*July 29, 2016*

**math**

Mistaken, I did 30 + 105 and thought it was 145 :P thanks for your help though.

*July 29, 2016*

**math**

That would be 145 degrees. 11 combinations in total! Thanks for your help Reiny, I appreciate it.

*July 29, 2016*

**math**

using two triangle rulers with angles of (30, 60, 90) and (45 , 45, 90) how many angles less than 180 degrees can be drawn?

*July 29, 2016*

**math**

Two angles are complementary to each other, if the ratio of the two angles is 3:2, then what is the difference of measures in degree of these two angles? please explain :(

*July 29, 2016*

**maths**

Find the measure of an angle with measure three times the measure of its supplement.

*July 29, 2016*

**math**

Find the measure of an angle with measure 8 less than the measure of its complement

*July 29, 2016*

**math**

The solution of x for equation a (bx - c) = d - (x + e) (a > 0 and b > 0) the answer is x = ac + d - e/ab + 1 How?

*July 22, 2016*

**math**

Find the experimental probability. Sheila drew single marbles from a bag, recorded the outcome, and replaced the marble. In 50 draws, Sheila drew 20 white marbles and 30 black marbles. What is the experimental probability that the next marble will be black? A.2/5 B.3/5 C.2/3 D...

*May 31, 2016*

**math**

45.8

*May 17, 2016*

**english**

In the United States, cell phones are a very popular item. What are all VERBS both "Action" and "Be."

*May 16, 2016*

**science**

A ball of mass 0.5 kg is released from rest at a height of 30 m. How fast is it going when it hits the ground?

*May 16, 2016*

**Chemistry**

How many grams of perchloric acid are dissolved into 3.86 L of water, if the pH of the solution is 4.03.

*May 11, 2016*

**please help**

Two point charges are fixed on the y axis: a negative point charge q1 = -34 μC at y1 = +0.19 m and a positive point charge q2 at y2 = +0.32 m. A third point charge q = +8.9 μC is fixed at the origin. The net electrostatic force exerted on the charge q by the other ...

*May 10, 2016*

**volume**

336

*April 12, 2016*

**physics**

Argon is a monatomic gas whose atomic mass is 39.9 u. The temperature of eight grams of argon is raised by 95 K under conditions of constant pressure. Assuming that argon behaves as an ideal gas, how much heat is required?

*April 11, 2016*

**physics**

A mass m = 0.068 kg of benzene vapor (Lv = 3.94x105 J/kg) at its boiling point of 80.1°C is to be condensed by mixing with water at 45.0°C. What is the minimum mass of water required to condense all of the benzene vapor? Assume the mixing and condensation take place is...

*April 10, 2016*

**math**

How can you write an equation of two test scores 97 and 88

*March 21, 2016*

**math**

Given: 1 post=2 Yards Therefore, Dimensions are: Width= 4 Posts Length= 8 Posts Let p=post Width= 4p Length= 8p Since p=2yards, Width= 4(2 yards)= 8 Yards Length= 8(2 yards) 16 Yards

*March 4, 2016*

**Math**

Convert the fraction 4/5 to a fraction that is more flexible to work with: (1-4/5)=(5/5)-(4/5) (5/5)-(4/5)=1/5 Eating half of one fifth: Again, convert the fraction into something that is more flexible to work with. Here, the best thing to do is to make the numerator even. You...

*March 4, 2016*

**Math**

No my teacher didn't teach us this just gave it to us for homework

*February 23, 2016*

**Math**

Marisa says that reflecting a point across the x axis and then reflecting its image across the y-axis will produce the same final image as just reflecting the original point across the line y equals x is this true?

*February 23, 2016*

**Math**

The smallest package weighed only 1/3 more than 1/2 the weight of the heaviest package. If the two packages combined weighed 100 kilograms, how much did the smaller package weigh?

*February 21, 2016*

**math**

The answer is yes because the probability of the red pen is 25 percent(1/4). The percentage of the not red is 75 percent(3/4). The probability of the black pen is 75 percent(3/4). The probability of the not black is 25 percent(1/4). If you add these together you get 1, which ...

*February 2, 2016*

**Physics**

How much work does a 50 kg student to climb 3 meters high stairs

*January 20, 2016*

**Health**

Thanks yeilinn got a 100%

*January 11, 2016*

**physics**

As shown in the diagram, a bullet of mass 7.0 g strikes a block of wood of mass 2.1 kg. The block of wood is suspended by a string of length 2.0 m, forming a pendulum. The bullet lodges in the wood, and together they swing upward a distance of 0.40 m from the original position...

*January 4, 2016*

**Calculus**

I am standing on the roof of a building with a pea shooter, and I shoot a pea up into the air from a height of 80 feet. The pea reaches its maximum height 2 seconds after I shoot, then falls to the ground. Give the position of the pea as a function of time

*December 8, 2015*

**Statistics**

I have gotten the concept of probability but the following question has really stumped me. Help please. The probability that a tomato seed will germinate is 0.9. Estimate the probability that of 100 randomly selected seeds, at least 86, but no more than 91 of them will ...

*December 5, 2015*

**health**

Thanks JDog got a 100%

*December 5, 2015*

**math**

there are 5 pounds of apples in one bag. Make a table to show how many pounds of apples are in 6 bags

*November 29, 2015*

**math**

To date, Jay Ward has xumulative earnings of $ 107,600. This week he is paid $3,000. What is the total amount of Social Security tax for this week? Assume a rate of 6.2% on $110,100 for Social Security and 1.45% for Medicare.

*November 28, 2015*

**Finance**

Need Solution problem Nealon Manufacturing Company

*November 24, 2015*

**Social Studies**

thanks @skullcrusher95 got a 100%

*November 21, 2015*

**trig**

Find the component form of v and sketch the specified vector operations geometrically, where u = 4i − j, and w = i + 5j. v = −u + w v = ( , )

*November 2, 2015*

**Ela**

Don't know how to make them plural or singular possessive or plural possessive

*October 26, 2015*

**Ela**

Write each phrase below to make it a plural or singular possessive or plural possessive.the backpacks belonging to the girls,the covers of the bookd

*October 26, 2015*

**Chemistry**

Calculate the pH of each solution given the following or values: a. [H3O+] = 1 * 10-8M b. [H3O+] = 5 * 10-6M c. [OH-] = 4 * 10-2M d. [OH-] = 8 * 10-3M e. [H3O+] = 4.7 * 10-2M f. [OH-] = 3.9 * 10-6M

*October 13, 2015*

**chem**

Please give the complete mechanism for the acid catalyzed addition of methanol to 3 - methylbutene

*October 12, 2015*

**physics**

A ball is projected upward at time t = 0 s, from a point on a flat roof 10 m above the ground. The ball rises and then falls with insignificant air resistance, missing the roof, and strikes the ground. The initial velocity of the ball is Consider all quantities as positive in ...

*October 11, 2015*

**physic**

Between the orbits of Mars and Jupiter, several thousand small objects called asteroids move in nearly circular orbits around the Sun. Consider an asteroid that is spherically shaped with radius r and density 3000 kg/m3 . You find yourself on the surface of this asteroid and ...

*October 10, 2015*

**ELA Reading**

Lin is right I got a 100%

*October 7, 2015*

**Math**

x/(x+1) - 2/(x-1)= 1 I have been trying to solve it but I do not know the steps to solve it.

*September 27, 2015*

**Chemistry**

Can I know the molarity of acid rain?

*September 13, 2015*

**science**

In the cabin of a jetliner that cruises at 600km/h, a pillow from an overhead rack falls into your lap below since the jetliner is moving so fast, why doesn't the pillow slam into the rear of the compartment when it drops? What is the horizontal speed of the pillow ...

*September 9, 2015*

**Math**

144x+21x squared??

*September 3, 2015*

**algebra**

whats the difference between a 16 ounce brick and a carpenter?

*August 18, 2015*

**Math**

How to find the perimeter of a 10 step staircase

*May 4, 2015*

**geology**

1950 + 979 = 2929 1950 + 1843 = 3793

*April 23, 2015*

**ss**

Sb is dumb

*April 17, 2015*

**math**

Renee is a sales associate at a store. She earns $80 a week plus a 15% commission on her sales. Last week, she sold $200 worth of items. What is the total amount Renee earned for the week? How much did she earn from commission?

*April 15, 2015*

**math**

Two months ago, the mean daily rainfall in a local city was 9.4 cm. The mean absolute deviation was 3.5 cm. Last month, the mean daily rainfall in that city was 11.5 cm, and the mean absolute deviation was 1.6 cm. Which statement about the rainfall is true

*April 13, 2015*

**trig**

solve triangle ABC which have angleA=25.25,angleB=60.51 and a=3.82..find c...,find b

*April 11, 2015*

**biology**

So basicaly what you have to do here is look at the question real hard close your eyes thing about this, 2 girls in one cup. Then open your eyes and you will know that white and smooth is the highest experimental value. With this you can assume that the others are just ...

*April 10, 2015*

**math**

Suppose a 25-foot ladder is leaning against a wall making a 63 degree angle with the wall. How high up th wall is the end of the ladder?

*March 19, 2015*

**math**

84 inches by 54 inches how many square inches will Paige have to paint the front side of the door?

*March 16, 2015*

**chemistry**

220.3 lbs = 100016.2 g 500. gallons= 1892.5L 100016.2g (NH4)(NO3)X 1 MOL/80.052 g/MOL= 1249.39 MOLES. 1249.39 MOLES/ 1892.5L = 6.60X10^-1 MOL/L (NH4)(NO3)

*March 13, 2015*

**Chemistry**

Calculate the mass of 5.35 mol of iodine

*March 12, 2015*

**math**

They're 32 more apples than oranges at a fruitstand. Howany apples and oranges could there be?

*February 9, 2015*

**Pre-Calculus**

Describe the function resulting from reflecting f(x)=x^3+2x^2-x+5 about the y-axis and then shifting to the left by 4. Is this the same as performing the operations in the reverse order

*February 3, 2015*

**algebra**

The perimeter of a rectangular piece of plastic is 22 millimeters. The area is 30 square millimeters. What are the dimensions of the piece of plastic?

*January 27, 2015*

**Construction Math**

What math do I need to do

*January 21, 2015*

**chemistry**

chemical reactions type?

*November 30, 2014*

**English 10**

noun clause

*November 19, 2014*

**physics**

In a house the temperature at the surface of a window is 22.4 °C. The temperature outside at the window surface is 2.66 °C. Heat is lost through the window via conduction, and the heat lost per second has a certain value. The temperature outside begins to fall, while ...

*November 17, 2014*

**chemistry**

69.56e5a5t5

*November 13, 2014*

**Intro to Accounting**

Jimenez Enterprises issued 8%, 9-year, $2,486,400 par value bonds that pay interest semiannually on October 1 and April 1. The bonds are dated April 1, 2014, and are issued on that date. The discount rate of interest for such bonds on April 1, 2014, is 8%. What cash proceeds ...

*November 5, 2014*

**Calculus**

Your firm offers to deliver 250 tables to a dealer, at $160 per table, and to reduce the price per table on the entire order by 50 cents for each additional table over 250. Find the dollar total involved in the largest possible transaction between the manufacturer and the ...

*November 3, 2014*

**global studies**

Nobles

*October 5, 2014*

**math**

The anwser is 16green peppers

*September 22, 2014*

**physics**

the distance of the and is 30m so if a person starts running towards the bank with a velocity of 10m/s then the distance of the bank will be 31 because you add the one second and then divide by your 10m/s

*September 16, 2014*

**Physics**

An airplane flies 220 km due east, makes a right-angle, and then flies 400 km due north. Find the magnitude of the plane's displacement from it's starting point. Neglect the culrvature of the earth

*September 14, 2014*

**Pre-Calculus**

Two polynomials P and D are given. Use either synthetic or long division to divide P(x) by D(x),and express the quotient P(x)/D(x) in the form P(x)D(x) = Q(x)+ R(x)D(x) . P(x) = 6x^4 − 3x^3 + 29x^2, D(x) = 3x^2 + 13

*September 14, 2014*

**Pre-Calculus**

Two polynomials P and D are given. Use either synthetic or long division to divide P(x) by D(x),and express the quotient P(x)/D(x) in the form P(x)D(x) = Q(x)+ R(x)D(x) . P(x) = 6x4 − 3x3 + 29x2, D(x) = 3x2 + 13

*September 14, 2014*

**Science**

If the temperature rose from 25C to 45C how many degree Fahrenheit would that be

*September 10, 2014*

**Math**

why does Zara have a good driving record

*September 1, 2014*

**5th grade math**

What is the best estimate for the product of 289 and 7

*August 25, 2014*

**probability**

The Answer is The Probality of picking a Black Marble from the Bah is 0.06

*August 17, 2014*

**math**

how many different rectangles having an area of 81 square centimeters can you draw if the length and width have an integral value?

*August 10, 2014*