# Posts by jai

Total # Posts: 1,998

**math**

Let n = the number Express each phrase into mathematical expression: one-half of the number is (1/2)n three-fourths of the number is (3/4)n 2 more than four-thirds of the number is (4/3)n + 2 Therefore, (1/2)n + (3/4)n = (4/3)n + 2 Solving, determine first the least common ...

*August 21, 2016*

**Physics**

A. The object follows uniformly accelerated motion. We can use the formula, vf^2 - vo^2 = 2gd where vf = final or terminal velocity, m/s vo = initial velocity, m/s g = acceleration due to gravity = 9.8 m/s^2 Since the object fell, its initial velocity is zero. Substituting, vf...

*August 21, 2016*

**Math**

The baker made 258 cakes.100 cakes were bought of a party.how many cakes were left?

*June 28, 2016*

**History**

At the outbreak of the civil war, which of the following states was considered a border state? A.) California B.) Kentucky C.) New Hampshire D.) Massachusetts

*May 20, 2016*

**Math**

1.You roll a number cube numbered one to six 12 times. P(5) = two over three. What type of probability is illustrated and why? (1 point) experimental; the result is based on the number of possible outcomes experimental; the result is found by repeating an experiment ...

*May 18, 2016*

**science**

For your discussion assessment, you will present your proposal of a device that minimizes heat transfer.

*May 16, 2016*

**Math**

which polynomial does the model represent (Model shows: 1 big black square, 2 long blank rectangles, 3 long rectangles, 3 small blank squares, 1 small blank square) a.) -x^3+2x^2-3x+2 b.)x^2+x-2 c.)-x^2-x+2 d.)-x^2+x-2

*May 10, 2016*

**Math**

Write and simplify the polynomial represented by the model. (Model shows: 3 big blank squares, 2 long black rectangles, 3 small blank squares, 1 big black square, 6 small black squares) a. -2x^2 + 2x + 3 b. 2x^2 - 2x - 3 c. 3x^2 - 2x - 3 d. 2x^2 - 2x + 3

*May 4, 2016*

**science**

What is anything that has mass and takes up space? 1) Weight 2) Volume 3) Density 4) Matter When you measure the boiling point of mercury, you are investigating a ____. 1) Chemical change 2) Chemical property 3) Physical change 4) Physical property An object weighing 90 N has ...

*May 2, 2016*

**science**

Felipe made a toy boat out of clay, but it kept sinking in water. He changed the boat's design by making it slightly wider than before. Why did Felipe's newly designed boat float on water? A. He decreased the density by increasing the volume. B. He decreased the ...

*May 2, 2016*

**History**

why was the conversion experience artifact made?

*May 1, 2016*

**language arts**

Write a brief essay discussing the use of imagery in both "Grandma Ling" and "your little voice." Examine the ways in which each poem uses images to convey the emotions or attitudes of its speaker. I figured out the your little voice one i need help with ...

*May 1, 2016*

**language arts**

I've read the poem i just don't understand how I'm supposed to write a paragraph, discuss how the poet uses imagery to present the speaker's feelings. Support your response with details from the poem.

*May 1, 2016*

**language arts**

Both "Grandma Ling" and "your little voice . . ." use imagery to convey the emotions or attitudes of the speakers. Choose one of these poems. In a paragraph, discuss how the poet uses imagery to present the speaker's feelings. Support your response with...

*May 1, 2016*

**math**

1) Which of these is a rational number? a. Pi b. Square root 3 ****** c. Square root 2 d. 1.3 (the # 3 has a line at the top) 2) Which of the following sets contains 3 irrational numbers? a. Square root 120 , n , Square root 3 ****** b. - Square root 256 , 1/9 , 1/12 c. 3.14...

*April 29, 2016*

**La**

yes im still really confused

*April 27, 2016*

**La**

Write a brief essay discussing the use of imagery in both "Grandma Ling" and "your little voice." Examine the ways in which each poem uses images to convey the emotions or attitudes of its speaker. i need help

*April 27, 2016*

**La**

Poets use imagery and words with different connotations and denotations. In a paragraph, define and provide an example of imagery, connotation, and denotation. Then, explain how poets use these elements to contribute to tone in a poem. Support your answer with evidence from &#...

*April 27, 2016*

**language arts**

how does the poet use personification to describe the trees? poem is "almost summer sky" by Jacqueline Woodson a. trees upstate think they are better than other trees b.the hundred year old trees act like men c. the tops of the trees reach up and touch the sky d. ...

*April 25, 2016*

**language arts**

How can words or stories connect generations? How can interactions between generations create conflict? Can words resolve these conflicts? What can each generation teach the other? Why might is sometimes be difficult for two generations to communicate? Why might the words of ...

*April 21, 2016*

**Math**

a 154 lb person burns 420calories per hour riding an exercise bicycle at a rate of 15 mi/hr write a function rule to represent the total calories burned over time by that person. Explain how the information in the problem relates to the function.

*April 21, 2016*

**math**

Which function rule represents the data in this table? X: -3 -2 -1 0 1 Y: -17 -14 -11 -8 -5

*April 21, 2016*

**Math**

Find the next three terms in the sequence. –1, 9, 19, 29, . . . (1 point) A. 38, 37, 32 B. 40, 51, 62 C. 39, 49, 69 D. 38, 47, 56*** Am I wrong?

*April 21, 2016*

**Math**

Directions: Follow the instructions below to design a fair race for the new video game Animal Tracks. 1. Choose two animals with different speeds. You can choose from the chart that starts at the bottom of this page or do research to choose your own. 2. Design a fair race in ...

*April 18, 2016*

**science**

Which of the following substances has the greater heat capacity? a. 0.02 g of aluminum b. 2.00 g of aluminum c. 20.0 g of aluminum d. 200 g of aluminum*** please correct me if im wrong

*April 12, 2016*

**science**

Which of the following is true? Choose all that apply. a. When molecular kinetic energy transferred to a substance, the motion of the molecules in the substance increases. b. When molecular kinetic energy is transferred away from a substance, the temperature of the substance ...

*April 12, 2016*

**science**

Which of the following substances has the greater heat capacity? a. 0.02 g of aluminum b. 2.00 g of aluminum c. 20.0 g of aluminum d. 200 g of aluminum*** please correct me if im wrong

*April 12, 2016*

**science**

Which of the following is true? Choose all that apply. a. When molecular kinetic energy transferred to a substance, the motion of the molecules in the substance increases. b. When molecular kinetic energy is transferred away from a substance, the temperature of the substance ...

*April 12, 2016*

**History**

Then B?

*April 11, 2016*

**History**

Read the text below and answer the following question: "Campmeeting with thy presence crown, And show't O Lord, they blessings down; Fill every head with holy zeal, And all thy righteousness reveal, O'er all our hosts do thou preside, And all our various...

*April 11, 2016*

**history**

thank you

*April 11, 2016*

**history**

i think its D

*April 11, 2016*

**history**

Which of the following is true regarding deaf and blind children in the 1800s? a.)Deaf and blind children were required to live in group homes or institutions. b.) Deaf and blind children were sent to orphanages once they reached age five. c.)Deaf and blind children were not ...

*April 11, 2016*

**Math**

find the slope of a line that is perpendicular to the line containing the points (–2 –1) and (2 –3) A.) m=-2 B.) m=2 C.) m=-1/2 D.) m=1/2

*April 10, 2016*

**History**

Which of the following is true regarding deaf and blind children in the 1800s? a.)Deaf and blind children were required to live in group homes or institutions. b.) Deaf and blind children were sent to orphanages once they reached age five. c.)Deaf and blind children were not ...

*April 4, 2016*

**History**

Which of the following was a direct consequence of Andrew Jackson's Bank War? People were no longer able to buy land on credit. Financial institutions closed, leading to unemployment. The value of paper money decreased, leading to inflation. Fewer improvements could be ...

*April 4, 2016*

**History**

12.)Which of the following best describes assembly line production? A.)A process using interchangeable parts that constructs products entirely instead of by individual piece*** B.)A process using workers to construct products more efficiently by dividing labor into specialized...

*April 4, 2016*

**History**

Thank you

*April 4, 2016*

**History**

I think its D

*April 4, 2016*

**History**

what were the environmental consequences of industrialization in the american northeast? a.) destruction of citrus crops b.) extinction of the Carolina parakeet c.) pollution of the Pacific Ocean d.) remove of large tracts of tress

*April 4, 2016*

**History**

what were the environmental consequences of industrialization in the american northeast? a.) destruction of citrus crops b.) extinction of the Carolina parakeet c.) pollution of the Pacific Ocean d.) remove of large tracts of tress

*April 4, 2016*

**help please**

which sound would be louder? a.) a wave with an amplitude of 0 b.) a wave with an amplitude of 0.1 c.) a wave with an amplitude of 1.0 d.) a wave with an amplitude of 0.5

*April 4, 2016*

**Math**

find the slope of the line that goes through the following points (0,-4),(1,-3),(2,-2),(3,-1) a.) -1 b.)1 c.) -4 d.) -7

*April 4, 2016*

**History**

What caused the progressive Era?

*March 31, 2016*

**History**

I'm doing a short project on the progressive era... can someone give me at least 5-7 topics I could talk about in my project, from the progressive era?

*March 31, 2016*

**Ms.sue please help**

17. Use equal intervals to make a frequency table for the average number of movies per person. You do not need to show tally marks. Country Average Number of Movies Turkey 0.5 Japan 1.2 UK 1.3 Finland 1.3 Austria 1.5 Germany 1.8 Spain 2.2 Sweden 2.2 Denmark 2.2 Switzerland 2.5...

*March 22, 2016*

**Math please help**

Use equal intervals to make a frequency table for the average number of movies per person. You do not need to show tally marks. Country Average Number of Movies Turkey 0.5 Japan 1.2 UK 1.3 Finland 1.3 Austria 1.5 Germany 1.8 Spain 2.2 Sweden 2.2 Denmark 2.2 Switzerland 2.5 ...

*March 22, 2016*

**Math please help**

Carol has a collection of 100 stamps the graph below shows the percentage of stamps she has from each country how many more of Carols stamps are from France than from Norway? France: 24%, England:22%, Norway:29%, Italy:25%. a.) 5 stamps* b.) 24 stamps c.) 29 stamps d.) 53 stamps

*March 22, 2016*

**Math**

A back-to-back stem-and-leaf plot showing the points scored be each player on two different basketball teams is shown below. Team 1 | | Team 2 4 3| 0| 4 9 9 8 2 0| 1|0 1 7 6 1| 2|3 3 8 Key: 4|0|2 means 4 points for Team 1 2points for team 2 What is the median number of points ...

*March 22, 2016*

**History**

I think 1&2 are b then

*March 21, 2016*

**History**

Four major candidates ran in the 1824 election, all under the "Democratic-Republican" name. One of the candidates, Andrew Jackson, was already famous. In the 1780s, he earned the right to practice law and served in various offices of the state government, including ...

*March 21, 2016*

**History**

I think its B

*March 17, 2016*

**History**

In the 1800s, help for those living in poverty was mainly given by the A.)civil societies B.)government C.)public schools D.)factory owners

*March 17, 2016*

**science**

1. What would happen to an object if the force of gravity on Earth was decreased by half? (1 point) Its mass would decrease. Its weight would decrease.* Its density would decrease. Its volume would decrease. 2. Which of the following represents a heterogeneous mixture? (1 ...

*March 16, 2016*

**MATH, GEOMETRY**

abcd is trapezium bc is 17 ab is 16 dc is 8 find area of abcd

*March 8, 2016*

**History**

Which of the following best describes the 1823 Treaty of Moultrie Creek? A.) The Seminoles had to move to the Creek Reservation in exchange for cattle, hogs, farming tools, and food for one year. B.) The Seminoles were given three years to move west of the Mississippi; however...

*March 7, 2016*

**History**

Q: The Gadsden Purchase enabled the United States to do which of the following? A. Gain access to important natural resources in the Southwest B. Increase crop production in the Southwest C. Link to the Southwest by railway system D. Provide better defenses against Mexico

*March 6, 2016*

**History**

Thank you

*March 6, 2016*

**History**

In 1840, the population of Chicago was only 4,470. By the 1900, the city's population was 1,698,575. Which factor best explains the population change? A.) African Americans escaping poverty and discrimination in the south B.) The expansion of Chicago's boundaries into ...

*March 6, 2016*

**MATH!**

Make a box-and-whisker plot of the data. 60,63,53,66,65,58,51,55,58,51,58,62,53,66,61,51,65,52,54,50

*March 6, 2016*

**Math**

Short answer The back-to-back stem-and-leaf plot below shows the ages of patients seen by two doctors in a family clinic in one day. Compare the ages of the patients of doctor 1 and doctor 2 using the mean and the median of each data set. Doctor 1 Doctor 2 | 3 | 5 9 2 0 | 2 | ...

*March 5, 2016*

**Math**

in a recent survey of middle school students about pizza toppings, it was found that 25 students like pepperoni pizza, 31 like banana peppers pizza, and 5 likes both pepperoni and banana peppers on their pizza. if 66 students were surveyed, how many students do not like banana...

*March 5, 2016*

**Math**

22.6 is an outlier for which of the following sets of data? A. 22.6, 21.5, 23.7, 22.6, 28.9, 22.6, 20.9 B. 2.4, 5.3, 3.5, 22.6, 1.8, 2.1, 4.6, 1.9 C. 20.5, 20.8, 21.6, 22.6, 23.7, 24.5, 25.1 D. 13.6, 31.7, 25.8, 22.6, 18.9, 21.6, 30.5

*March 5, 2016*

**algebra**

Thank you Ms. Sue

*March 4, 2016*

**algebra**

the total was 29.00 after adding a 4,00 tip to the bill for a family of five, each of whom ordered a hot dog. what was the price of a hot dog? A. 4-5x=29;$5.00 B. 4+5x=29;$5.00 C. 29-5x=4;$5.00 D. 5x=29=4;$5.00

*March 4, 2016*

**US history**

The gadsden purchase enabled the united states to do which of the following? A. gain access to important natural resources in the southwest B. increase crop production in the southwest C. link to the southwest by railway system D. provide better defenses against mexico

*March 4, 2016*

**Civics**

those links didn't help at all

*February 17, 2016*

**Mathematics**

3^(2x+1) = 12 We can rewrite this as: 3^(2x) * 3^(1) = 12 (3^2)^x = 12/3 9^x = 4 Get the natural logarithm of both sides: ln (9^x) = ln (4) x * ln(9) = ln(4) x = ln(4) / ln(9) We can further simplify this as: x = ln(2^2) / ln(3^2) x = 2*ln(2) / [2*ln(3)] x = ln(2) / ln(3) Hope...

*December 13, 2015*

**math**

Let l = length Let w = width It was said that the total length of fencing is 180 yards. Note that perimeter of rectangle is equal to: P = 2l + 2w Substituting, 180 = 2l + 2w 90 = l + w We can have an expression for length in terms of the width: l = 90 - w Recall that area of ...

*December 13, 2015*

**science**

Recall that speed is distance travelled over time, or v = d/t Rearranging the formula to solve for distance, d = v*t Substituting, d = (960 km/hr) * (1 hr & 50 min) Note that 1 hour = 60 minutes, so 50 minutes is 5/6 of an hour. Rewriting, d = (960) * (1 + 5/6) d = (960) * (11...

*December 13, 2015*

**St.martins**

Note that 1 km = 1000 meters, therefore 0.9 km = 900 meters To determine how many times he ran around the track, we just divide the total distance he travelled by the length of track: 900 / 150 = ? Hope this helps~ `u`

*December 13, 2015*

**AP Chemistry**

We'll reverse the 1st reaction: CH4 --> C + 2H2 ; ΔH = +74.6 We'll use the 2nd equation as is: C + 2Cl2 --> CCl4 ; ΔH = -95.7 We'll multiply the 3rd equation by 2: 2H2 + 2Cl2 --> 4HCl ; ΔH = -369.2 Now if we add the chemical equations, we&#...

*December 13, 2015*

**Math**

If blue to yellow is 4 to 1, then their total mixture is 5. Thus, the blue color makes up 4/5 of the mixture.

*December 2, 2015*

**Mathematics 3**

Let A = Aris' age Let R = Rico's age Let J = Jay's age From the problem, Aris is twice as old as Rico: A = 2R Jay is 24 years younger than Aris: J = A - 24 half of Aris' age six years ago was three less than one half the sum of Rico's age in four years and ...

*December 2, 2015*

**math**

Because the given side lengths of the triangle do not follow the triangle inequality theorem. The theorem states that the sum of any sidelengths of the triangle is greater than the length of the third side. In this case, 21 + 15 is not greater than 37.

*November 30, 2015*

**Science**

Recall that force is mass times the acceleration: F = m*a where m = mass (kg) a = acceleration (m/s^2) Substituting, F = 4 * 2.8 F = ? Solve for F. Units in Newtons. Hope this helps~ `u`

*November 29, 2015*

**Math**

Multiply the fraction by 100, so it becomes a percentage: 1/3 * 100 = 100/3 % Then simplify it and write it in mixed number form: 100/3 % = (99 + 1)/3 % = 33 1/3 % Hope this helps~ `u`

*November 6, 2015*

**Math**

Let x be the number. Write everything in math expression using x. Four time the square of a number: 4x^2 Is added to the product of -29 and the number: + (-29)x The result is 63: = 63 Combining them, we have 4x^2 + (-29)x = 63 or 4x^2 - 29x - 63 = 0 We have a quadratic ...

*November 6, 2015*

**MATH**

We have to find the least common multiple (LCM) of 3, 4 and 5. LCM is the smallest number that when divided by 3 or 4 or 5 should give no remainder. Their LCM is 60. Since the problem is asking "with a remainder of 2", we just add 2 to 60, therefore it's 62.

*November 6, 2015*

**Physics**

In Rutherford's model of atom, it was observed that the atom is mostly empty space, the mass of the atom is concentrated at the center (nucleus), and electrons revolve around the nucleus like a mini solar system. I think it's C.

*November 6, 2015*

**Physics**

(a) Maximum height formula for projectile motion: H,max = (vo,y)^2 / 2g or H,max = (vo)^2 * sin^2 (θ) / 2g where vo = initial velocity θ = angle of release (wrt to horizontal) g = acceleration due to gravity = 9.8 m/s^2 Substituting, H,max = (400^2) * (sin (35))^2...

*November 6, 2015*

**Physics**

This problem involved half projectile. initial velocity, vo = 20 m/s time of flight, t = 7 s (a) Simply use the formula to get the height, h: h = vo*t - (1/2)gt^2 (b) To get the final vertical velocity or terminal velocity (vf), use the formula: (vf)^2 - (vo)^2 = 2gh (c) Use ...

*November 6, 2015*

**math**

Let t be the time. Since Julie's and the escalator's rates are on opposite directions, we can represent it as one of them (+) and the other (-). Rate is distance traveled over time, or r = d/t or solving for d, d = r*t Then we write the equation: (Julie's distance...

*November 6, 2015*

**Chemistry**

I think it's (B) Metals. Though I agree with you, it's got to be more than 2/3 of all elements.

*November 6, 2015*

**gaya ,college science**

Alkaline Earth metals belong to group II in the periodic table. Actually there's nothing in the choices that belongs to group II. Carbon belongs to group IV, Sodium belongs to group I, while Zinc and Iron are found in transition metal group.

*October 18, 2015*

**Math**

Rewrite all fractions such that their denominators are the same, by getting their least common denominator (LCD). Their LCD is 18, therefore, 2/3 = 12/18 5/6 = 15/18 4/9 = 8/18 2/9 = 4/18 Now arrange it in ascending order. Hope this helps~ :3

*October 18, 2015*

**Algebra help plz**

Recall that for a given quadratic equation, x^2 - (sum of roots)x + (product of roots) we can rewrite the first quadratic eqn as x^2 + 2x - 3/2 = 0 Therefore, sum of roots is -2 and their product is -3/2, or € + ß = -2 €ß = -3/2 Since were looking for p (...

*October 18, 2015*

**Math**

The sum of the ages of Devonte and Anna is 107 years. 11 years ago, Devonte's age was 4 times Anna's age. How old is Devonte now?

*September 20, 2015*

**College Algebra**

Randall is 105 years old. Colleen is 5 years old. How many years until Randall's age is 5 times Colleen's age?

*September 20, 2015*

**Math**

Bradley is 4 years older than Amanda. In 3 years the sum of their ages will be 64. How old is Bradley now?

*September 20, 2015*

**Math**

The sum of the ages of Jared and Caitlyn is 80 years. 8 years ago, Jared's age was 3 times Caitlyn's age. How old is Jared now?

*September 20, 2015*

**algebra**

Let a = angle Let b = the other angle 45 less than the sum of these angles is (a + b) - 45

*September 19, 2015*

**P6 maths**

Let n = number of boys or girls Let p = received pizza by girls Let 2p = received pizza by boys Each girl ate 4/9 of a pizza and they finished all pizzas that were given to them: 4/9 * n = p Each boy ate 3/4 of a pizza and they had 3 3/4 pizzas left: 3/4 * n = 2p - 3 3/4 ...

*September 19, 2015*

**algebra**

Recall that rate is distance traveled over time, or r = d/t Solving for distance, we have d = rt Let r = speed of car Let t = time it takes to travel 144 miles Thus, rt = 144 ; equation (1) If it had traveled 4 mph faster, time it takes to travel the same distance would be ...

*September 18, 2015*

**math**

Yes, it's -12

*September 18, 2015*

**Math**

Recall that area of square is length of a side multiplied by itself, or A = s^2 We can first convert 2 m to cm. One meter is equivalent to 100 cm, therefore, 2 m = 200 cm Substituting, A = s^2 A = 200^2 A = 40000 cm^2 Hope this helps~ :3

*September 18, 2015*

**maths**

28 + 30 = 58 m

*September 12, 2015*

**maths**

1 hour is 60 minutes so, 5 hours & 30 minutes = 300 minutes + 30 minutes = 330 minutes Half of this is 165 minutes. 165 / 60 = 2 remainder 45 Therefore he spent 2 hours & 45 minutes for the ride.

*September 12, 2015*

**maths**

start: 0 cm 1st minute: 0 + 3 - 2 = 1 cm 2nd minute: 1 + 3 = 4 cm Therefore after 2 minutes the ant already climbed to the top (and didn't slip).

*September 12, 2015*