# Posts by Kim

Total # Posts: 2,596

**Mathhhhh**

There are 260 skittles but only 133 were eaten. How do I find the percentage of what was eaten?

*March 22, 2017*

**math**

Four men, Eddie Jake, Deon, and Fred are watchmen in a small factory in Lorain. Their job consists of two daily shifts of six hours each, interrupted by a rest of several hours. At any hour of the day or night there must always be two men on duty. However, no two men's ...

*March 20, 2017*

**statistics **

A school club consists of 22 male students and 15 female students. If 3 students are selected to represent the club in the student government, what is the probability 2 will be male and 1 will be female?

*March 19, 2017*

**Physics**

The lenses used in a compound microscope have powers of + 110 D and + 60 D . If a total magnification of -150 × is desired, what should be the distance between the two lenses?

*March 19, 2017*

**Math**

Sade found that 75% of 60 is the same as 30% of another number n.what is the value of n?

*March 16, 2017*

**Math**

Which of the following is a factor of both x2- x-6 and x2 - 5x + 6

*March 13, 2017*

**Chemistry**

Calculate the number of moles of ZnCl, in 100mL of 3.00M solution.

*March 5, 2017*

**Math**

An electron weighs about 10^(-27) grams, and a raindrop weighs about 10^(-3). a raindrop is 24 times heavier than an electron. an electron is 24 times lighter than a raindrop. but idk what is the order of multitude difference.. or how to calculate it... i put 0 and 1 but its ...

*February 27, 2017*

**math**

In the 1870's, on a farm along the Ohio River, a girl was presented with three gifts: a rooster, a goose, and a duck. The duck had cost 20 cents. The rooster and the goose together cost twice as much as the duck. The goose and the duck together cost three times as much as ...

*February 21, 2017*

**calculus**

The voltage in a electric current is 100 volts then with Ohm's law how do you find the instantaneous rate of change of I with respect to R ta a resistance of 20 ohms if R is increasing I know how to use the instantaneous formula but what is f(a)

*February 18, 2017*

**math**

Mike's age right now is exactly 3 times his age 3 years hence minus 3 times his age 3 years ago. How old is Mike right now?

*February 16, 2017*

**Algebra (answer check)**

Thank you! :D

*February 12, 2017*

**Algebra (answer check)**

Where is the vertex of the graph of y equals negative x squared plus 2 x plus 5 located? (1,5) < it's not this one (1,6) (-1,3) <-- (-1,2) Which values best approximate the solutions of -4x^2+7x+5=0? 0.9 and 2.3 0.9 and 5 -0.5 and 2.3 <-- -0.5 and 5 What is the ...

*February 12, 2017*

**FSCJ**

please help!! A storage tank 32 m high is filled with pure water. (Assume the tank is open and exposed to the atmosphere at the top.) (a) Find the gauge pressure at the bottom of the tank. (b) Calculate the magnitude of the net force that acts on a square access hatch at the ...

*February 12, 2017*

**English**

And would these work as well? 3) They claimed the foreign land And took it by the hands. 4) The Natives’ lives turned black When the strangers came packed. (both historical allusions to what the european settlers did to the natives)

*February 12, 2017*

**English**

For a project I have to come up with some allusions in a couplet format and I am iffy on how to write my own. I was wondering if these were ok. 1) Their death by disease Was not what they pleased. (I was going for a historical allusion to the Native Americans) 2) The town soon...

*February 12, 2017*

**Math@@**

How do I solve v + 17 -11= 65

*February 8, 2017*

**Math**

The length of a rectangle is 1 m more than twice its width. What is the length of the rectangle if its perimeter is 110m?

*February 8, 2017*

**algebra**

identify the initial amount a and the growth factor b in the exponential function g(x)=4X2

*February 4, 2017*

**calculus**

find the limit x-->inf (x^2+x)^1/2-(x^2-x)^1/2 so I know I multiply by the conjugate 2x/(x^2+x)^1/2+(x^2-x)^1/2 then I don't know where to finish problem

*February 1, 2017*

**BIOLOGY/EVOLUTION**

I need answers for these questions too T.T

*January 26, 2017*

**Chemistry **

solid sodium reacts violently with water producing heat, hydrogen gas and sodium hydroxide. How many molecules of hydrogen gas are produced when 65.4g of sodium are added to water? 2Na(s)+ 2H2O(l) -->. 2NaOH(aq) + H2(g). Can someone please explain this question and it's...

*January 23, 2017*

**Social studies**

Witch of the following actions is a check by the legislative branch on the actions of the executive branch ?

*January 23, 2017*

**biology**

When you talk of genotype it refers to the alleles of the organism. Like FFpp, FfPp. For example: Dominant: White Flower (F) Recessive: Purple Flower (f) The possible genotypes for white flowers in the F1 generation are: FF and Ff. When for purple flowers is only ff. So in the...

*January 10, 2017*

**MATH**

How do I find 30% of 50?

*January 5, 2017*

**maths**

the width of a rectangle is increased by one tenth, but the area remains the same. by what fraction has the length of the rectangle been reduced?

*January 4, 2017*

**Math**

25.32= 3/5 25.32 divided by 3= 8.44 8.44 = 1/5 8.44 times 2= 16.88 2/5 = 16.88 Jaine spent 16.88 pounds on her sweater.

*January 3, 2017*

**math**

get your calculator, put 1335 times 59 and the answer is 78765.

*December 12, 2016*

**math**

Evaluate 13 35 × 5 9

*December 12, 2016*

**Statistics**

If the probability of randomly choosing a county resident from a class of students is 65%, what is the probability of selecting exactly 7 county resident out of a random group of 10 students?

*December 7, 2016*

**Business Analytics ISDS361B**

Eli Orchid has designed a new pharmaceutical product, Orchid Relief, which improves the night sleep. Before initiating mass production of the product, Eli Orchid has been market-testing Orchid Relief in Orange County over the past 9 weeks. Now that the daily demand for Orange ...

*December 4, 2016*

**English**

Identify the sentence type. I have to do my homework before I can watch TV. a. simple c. complex b. compound d. compound-complex

*November 29, 2016*

**Math**

Right in equation to show the relationship between the input and output

*November 28, 2016*

**Physics**

Two questions and a small confusion that is not letting me do my homework: When is said that an object is rotating it is mandatory that the addition of rotational momentums gives 0? Under what conditions, two forces of same magnitude but different direction exerted in a body, ...

*November 24, 2016*

**trigonometry**

The diagram is a right triangle, so the length of the ladder would be its hypotenuse, and the height of the wall, the opposite side of the angle of 48. Then Sen 48= x / 15 Clear x and that's the answer.

*November 24, 2016*

**Physics**

I can help you with C: You have height, acceleration (9.81), and initial velocity (0) so you use: Vf ^2 = Vi^2 + 2gh

*November 24, 2016*

**Math**

Y=2x-5 and 4x-y=7

*November 18, 2016*

**math**

Which of the following statements is true about the level of significance alpha?

*November 15, 2016*

**Math**

One square wall you want to paint has a perimeter of (12x - 32) feet. Write an expression that represents the side legnht of the wall.

*November 14, 2016*

**Chemistry**

Elemental analysis of a compound, once used as a pesticide, was found to be 74.2% carbon, 8.64% hydrogen, and 17.2% nitrogen. What is the empirical formula of this compound?

*November 13, 2016*

**Chemistry**

November's birthstone is citrine, a yellow member of the quartz family. It is primarily silicon dioxide, but small amounts of iron(III) ions give it its yellow color. A high quality citrine containing about 0.040 moles of SiO2 costs around $225. If this stone were pure ...

*November 13, 2016*

**Chemistry**

There are about 1 x 10^5 chemical reactions per second in each of the 10 billion nerve cells in the brain. How many chemical reactions take place in a day in a single nerve cell?

*November 13, 2016*

**Chemistry**

What is the minimum volume of 2.00 M hydrochloric acid necessary to neutralize completely the hydroxide in 800.0 mL of 0.3 M calcium hydroxide?

*November 12, 2016*

**Math**

6(2b)

*November 7, 2016*

**Math**

6 + (5 + x) simplify the expression. Explain each step. How do I do this?

*November 7, 2016*

**geography**

Some have none but some have more than a hundred

*November 7, 2016*

**Math**

Seven subtracted from five times a number, then the difference added to nine times a number

*November 6, 2016*

**ratio and proportion**

832 foot tree casts a shadow of 18 foot how long will the shadow be for a 22 foot tree

*October 24, 2016*

**Science**

A cicular pool with a radius oF 12 meter if filled with water to a depth of 3 meters. What is the weight of water in the swimming pool?

*October 19, 2016*

**MATH HELP PLZZ ASAP**

Sorry, i mean 55 divided by 4

*September 28, 2016*

**MATH HELP PLZZ ASAP**

The youngest Julio can be is 6. As for the equation, 55 divided by 2 which is 13.75. Then divide that by 2 to get 6.875. No one can be 6.875, so the younges he can be is 6. Add on the rest, (48.125) and you'll find out that the oldest his father can be is 48. Hope this ...

*September 28, 2016*

**calc**

Find k so that the function is continuous on any interval. h(x) = k cos x 0 ≤ x ≤ 3π h(x)= 10 − x 3π < x I am confused on how to find k when it gives you 3pi? help please

*September 27, 2016*

**Math**

How many choices do I have if I use three colors from red, white, yellow and blue

*September 22, 2016*

**physics**

a baseball is batted with a speed of 120 ft/sec at an angle of 37 degrees with the ground. find how long the ball is in the air, how high the ball goes, how far from the plate it is caught, and the components of the velocity of the ball 4 sec after it is hit.

*September 21, 2016*

**physics**

A microwave oven has a power requirement of 1250 W. A frozen dinner requires 6.5 min to heat on full power. If the cost of electricity is 12 cents per kWh, how much does it cost to heat the dinner?

*September 18, 2016*

**physics**

A microwave oven has a power requirement of 1250 W. A frozen dinner requires 6.5 min to heat on full power. How much electrical energy (in kWh) is used?

*September 18, 2016*

**physics**

How much heat is necessary to change 345 g of ice at -11°C to water at 20°C

*September 18, 2016*

**physics**

While in Europe, a tourist hears on the radio that the temperature that day will reach a high of 22°C. What is this temperature on the Fahrenheit scale?

*September 18, 2016*

**physics**

How much heat is necessary to change 345 g of ice at -11°C to water at 20°C?

*September 18, 2016*

**physics**

A 4.6 "kilo" bag of sugar is on a counter. How much work is required to put the bag on a shelf a distance of 0.45 m above the counter

*September 18, 2016*

**physics**

How much work is required to lift a 5.2-kg concrete block to a height of 3.1 m?

*September 17, 2016*

**physics**

What is the kinetic energy of a 15 kg dog that is running at a speed of 8.7 m/s (about 19 mi/h)?

*September 17, 2016*

**physics**

A 4.6 "kilo" bag of sugar is on a counter. How much work is required to put the bag on a shelf a distance of 0.45 m above the counter?

*September 17, 2016*

**physics**

While rearranging a dorm room, a student does 307 J of work in moving a desk 1.1 m. What was the magnitude of the applied horizontal force?

*September 17, 2016*

**Math, number and operations base**

I have 8 thousands,17 tens, 5 hundreds, and 12 ones. What number am I?

*September 15, 2016*

**English**

Once upon a time there was a knight who lived in a little castle on the edge of the forest of Life. One day this knight looked in the mirror and saw that he was a White Knight. "Lo!" he cried. "I am a White Knight and therefore represent good. I am the champion ...

*September 14, 2016*

**Math**

Is the answer A

*September 10, 2016*

**Math**

what is the solution to 204 - (-36)? A 240 B -240 C 168 D -168

*September 10, 2016*

**Chemistry Help Please!**

At most, how many 4d electrons can an atom have? Of these what is the maximum number that can have ms= -1/2? A 5f electron has what value of quantum number l? What values of ml may it have? Also please explain how you got the answers so I can understand? Thank you so much!

*September 5, 2016*

**algebra**

solve the equations justify each step with and algebraic property 13=x/4

*September 1, 2016*

**Grammar**

What is the predicate noun in Other subjects were historical or mythical figures. I think it is figures.

*September 1, 2016*

**technology**

To indent the first line of a paragraph which key should you use? A Shift key B Tab key C Enter key D Space key

*August 25, 2016*

**Math**

decrease the quotient of -15 and -3 by 1

*August 19, 2016*

**Business statistics**

You chose a simple random sample of 300 guests you develop a 95 percent confidence interval estimate you found the following 325 and 32 determine the standard error of the sampling distribution determine the critical value z from the standard normal table compute the ...

*August 14, 2016*

**NCC**

a sportscar starting from rest accelerates uniformly at 2m/s squared . What is the speed after 10S?

*August 11, 2016*

**Physics**

how many coulombs must be on one object for it to be repelled with a force of 6.0 N by a second charge of 2.0uC at a distance of 1.0 m?

*July 25, 2016*

**science**

Why is ozone can be describe as our friend

*July 10, 2016*

**Chemistry**

What is the variable x in the following hydrate formula NaCl xH2O if the mass of sodium chloride is 58g and the mass of the water is 36g

*June 28, 2016*

**Math - help please**

Problem: The rock group Loco Moco was scheduled for a concert at the Blaisdell Concert Hall. Because it was the concert highlight of the year, there was excitement in the air and people were eager to get tickets, which could only be purchased in person. Hours before tickets ...

*June 27, 2016*

**Algebra**

Problem: The rock group Loco Moco was scheduled for a concert at the Blaisdell Concert Hall. Because it was the concert highlight of the year, there was excitement in the air and people were eager to get tickets, which could only be purchased in person. Hours before tickets ...

*June 27, 2016*

**Physics**

Thank you!

*June 24, 2016*

**Physics**

A 7.25 μC and a -2.00 μC charge are placed 20 cm apart. Where can a third charge be placed so that it experiences no net force. Express your answer in cm. The answer is 22.12 from the online answer key, but how do you set this up?

*June 24, 2016*

**Physics**

A square 1 m on its side has charges on every corner. Calculate the electric field on the upper right corner of the square. Let the charge on each corner be 40 x10-9C. Do I use K(Q*4)/r^2=F Then F/(Q*4)=E K=8.99*10^9 Nm^2/C^2

*June 23, 2016*

**physics**

A square 1 m on its side has charges on every corner. Calculate the electric field on the upper right corner of the square. Let the charge on each corner be 40 x10-9C. Do I use K(Q*4)/r^2=F Then F/(Q*4)=E K=8.99*10^9 Nm^2/C^2

*June 22, 2016*

**math**

compare the future amounts(a)you would have if the money were invested at a simple interest and if it were invested with annual compounding. ( round your answers to the nearest cent.) $7,600 at 15% for 25yrs

*June 14, 2016*

**art 103**

thank you

*June 12, 2016*

**art 103**

can you give me examples or explain it to me more

*June 12, 2016*

**art 103**

how do i know id the shapes are soft or hard or bump blend or over lap i don't know anything about art really please and thank you

*June 12, 2016*

**art 103**

i don't understand what is organic or geometric

*June 12, 2016*

**art 103**

"Street, Dresden", 1907, oil on canvas by Ernst Ludwig Kirchner. Describe the shapes in this painting: Are the shapes organic or geometric? Which ones? Describe how the shapes interact, or "touch" each other. Are the edges of the shapes soft or hard? Do ...

*June 12, 2016*

**Science**

Your journey to the centre of the earth took 64 hours at 100km/h. What was the total distance you traveled??

*June 9, 2016*

**Precalculs**

6x-12=log(x)1 that is base x I know the answer is 2 but not sure how to do

*June 1, 2016*

**Chemistry**

Magnesium chloride hexahydrate has a density of 1.69 g/cm3. What is the volume in liters of 1.5 x10^2 pounds of MgCl2*6H2O? yes D=m/v into V=m/d, Do I need to find the formula mass of Magnesium chloride hexahydrate and change pounds into liters? Divide the found numbers and I ...

*May 31, 2016*

**Pre calculus**

olve the system of equations using matrices. Use Gaussian elimination with back-substitution. x + y + z = -5 x - y + 3z = -1 4x + y + z = ...

*May 29, 2016*

**Kamal School**

Try to analyze a little , if Raghav's fruit stallsold 2/5 of a box of apricats and Raj Fruit sold 2/3 as many boxes of apricats as Raghav's did ,therefore 2/5 can be called x and 2/3× is ???

*May 21, 2016*

**chemistry**

what is the actual freezing temperature of a 0.50m aqueous solution of sodium chloride?

*May 18, 2016*

**English**

The customer paid by _______ for his new ______ suit..

*May 17, 2016*

**Math**

sixty-four is four tenths of what number?

*May 9, 2016*

**math**

stem leaf plot stem leaf 5 4 5 6 0 6 9 7 2 3 4 5 5 8 1 2 8 9 9 5 6 a)what is range of data?B) median of data? C) and mode of data A)? B)74.5 C) 75

*May 6, 2016*

**math**

which is Q=200p/l solved for p is it p=QL/200

*May 6, 2016*