Saturday

February 25, 2017
Total # Posts: 601

**Math**

In 2010 there were 2575 students at ECC. In 2013 there were 3090 students. For the units use student increase or student decrease, rounded to the nearest whole, and percent increase or percent decrease, rounded to the nearest 10th, in the answer boxes that ask for ...

*January 26, 2017*

**Math**

For the first tour on Monday, a museum sells 4 child tickets and 8 adult tickets for $128. For the second tour the museum sells 6 adult tickets for $72. Find the price of one child ticket and the price of one adult ticket

*December 18, 2016*

**Physics**

A 30 kg child sits in a swing supported by two chains, each 1.4 m long. (a) If the tension in each chain at the lowest point is 265 N, find the child’s speed at the lowest point. (Neglect the mass of the seat.) Answer in units of m/s. (b) Find the force of the seat on the...

*December 3, 2016*

**physics**

A pendulum clock has a pendulum shaft made of aluminum which has a coefficient of linear expansion of 24.0*10^-6K^-1. At 22 degrees celsius the period of the swing of the pendulum is 1.00seconds. If the temperature is reduced is reduced by 0.625°C every hour, how much time...

*November 27, 2016*

**history**

What was the significance of the Supreme Court's ruling in the Marbury vs. Madison case? The ruling determined that Congress could act against the president if it wished. The ruling determined that the Supreme Court was more powerful than the president.*** The ruling ...

*November 7, 2016*

**Math**

I need two 12x23 feet of carpet for my basement at $6.00 per square foot. How much will this cost?

*October 26, 2016*

**ENGLISH**

What is the infinitive phrase in the following sentences? Tell whether it is used as a noun, adj, or adverb. 1. Early Bostonians STAGED THE BOSTON TEA PARTY TO PROTEST TAXATION WITHOUT REPRESENTATION. 2. TO PROTECT THEIR COMFORTABLE POSITION, Louis XVI and Marie Antoinette ...

*October 5, 2016*

**Pre Calc**

Use a graphing utility to graph the function and approximate (to two decimal places) any relative minima or maxima. (If an answer does not exist, enter DNE.) f(x) = −x2 + 9x − 8

*September 4, 2016*

**Chemistry**

What volume of 0.123M NaOH contains 0.025 moles of NaOH?

*August 13, 2016*

**geometry**

Robin is looking up at a 89degree angle to the top of the stratosphere in Las Vegas, which is 1149ft tall. how far away is Robin form the base of the tower? round to the nearest hundredth

*July 7, 2016*

**Career**

What are goal-related activities?

*July 1, 2016*

**Temperature(Math)**

At 1:00 pm the temp is 72 deg, the temp went down to 52 deg at 6:30, what is the temp at 4:00pm?

*June 3, 2016*

**Language arts 8B**

I pretty positive its c then

*May 4, 2016*

**Language arts 8B**

the poem It shall flash through coming ages, It shall light the distant years; And eyes now dim with sorrow Shall be brighter through their tears. It Shall flush the mountain ranges, And the valleys shall grow bright; It shall bathe the hills in radiance, And crown their brows...

*May 4, 2016*

**math**

At a concert there are 3 times as many women as men. 3/5 of the men and 1/3 of the women wear glasses. There are 120 more women wearing glasses than men wearing glasses .How many people are at the concert?

*April 29, 2016*

**math**

The winning team's score in 13 high school basketball games was recorded. If the sample mean is 54.3 points and the sample standard deviation is 11.0 points, find the 98% confidence interval of the true mean.

*April 16, 2016*

**Chemistry**

Describe how you would make a 125 mL of 0.025 M solution of potassium dichromate?

*April 3, 2016*

**Math**

billys bike has wheels of diameter 70 cm he invented a counter for his bike which counts the number of revolutions the wheels make one day the county shows 350 revolutions how far has Billy cycled

*March 20, 2016*

**algebra**

a class recorded the number of movies that each student watched during the summer. draw a histogram to accuratley display this data.

*March 14, 2016*

**MATH**

can someone explain. 3(cos(X)-1)=-1 thanks

*February 22, 2016*

**science**

Can you predict the force needed to stretch the rubber band to 40.0cm?why or why not

*January 31, 2016*

**Math**

If rosario noticed that the distance from the pole in the center of the tetherball circle to the painted circle was about six feet. Then what was the radius of the tetherball

*December 3, 2015*

**Chemistry**

What is the chemical formula for coconut oil?

*November 21, 2015*

**Algebra**

actually the equation should be y= 3 less then the absolute value of x + 2!!!

*November 11, 2015*

**Algebra(another question for Damon)**

Okay, I have another one but it will be a little more difficult... Graph the Function y = three minus the absolute value of x+2 Now, I know you can't actually graph it since you don't have the graph in front of you...But, how would I solve the equation?

*November 11, 2015*

**Algebra**

Evaluate the polynomial 6x - y for x = - 3 and y = 2. A. 15 B. –20 C. 4 D. –16 I think it is b...am I right?

*November 11, 2015*

**Algebra**

OOOPSS!SorrY, I picked letter D...Am I right???

*November 11, 2015*

**Algebra**

I'd like to know if I am right... A rectangular box is twice as long as it is wide. The height of the box is 3 feet less than the width. If the box is x feet wide, what polynomial represents its volume in cubic feet? A. 4x - 3 B. 2x^3 + 6x^2 C. 2x^2 - 6x D. 2x^3 - 6x^2 Am ...

*November 11, 2015*

**Maths**

How would you solve this in order to find t? 0.2t(t-5.1)(t-9.1)=2.4+0.75t I tried differentiating it, but I wasn't getting the answer I was supposed to

*October 9, 2015*

**maths**

Function for runner one: s=0.2t(t-5.1)(t-9.1) Function for runner two:s=2.4+0.75t 's' is for displacement and 't' is for time (where one minute is t = 1) At the start of a race, runner one begins with a displacement of 0m. However, at the start of the same race...

*October 6, 2015*

**stats**

Katie must get 56 or more because ... 1) 77 77 2) 79 79 3) 95 95 4) 93 + 93 ------- 344+56= 400 Divide 400 by 5 which equals 80

*October 3, 2015*

**stats**

Katie must take five exams in a math class. If her scores on the first four exams are 77, 79, 95, and 93, what score must Katie get on the fifth exam for her overall mean to be at least 80? The maximum score on an exam is 100 points. If it is not possible for Katie to achieve ...

*October 3, 2015*

**math**

write an algebraic expression for 10 + q

*September 21, 2015*

**Math**

What am I? I am a decimal fraction with three digits I am bigger than half of 6 I am smaller than double 2 All my digits are odd When you add my digits you get 15

*August 31, 2015*

**science**

Is tundra abiotic or biotic

*August 29, 2015*

**Chemistry**

How many liters of Carbon Dioxide are formed by burning 6011.0 grams of C3H7OH with excess of oxygen gas and is carried out at 20.00 degrees Celsius, and 1.150 atm of pressure. I know this needs PV=nRT but the burning and excess part is throwing me off. Please help me learn ...

*August 15, 2015*

**Math**

Sorry I wasn't finished with the problem. Fijisawa Inc. is considering a major expansion of its product line and has estimated the following cash flows associated with such an expansion. The initial outlay would be $1,980,000, and the project would generate incremental ...

*June 15, 2015*

**Math**

Fijisawa Inc. is considering a major expansion of its product line and has estimated the following cash flows associated with such an expansion. The initial outlay would be $1,980,000, and the project would generate incremental free cash flows of $490,000 per year for 6 years...

*June 15, 2015*

**math**

4x+12=-7y

*April 29, 2015*

**Chemistry**

A sample of krypton gas occupies 95.0 mL at 0.500 atm. If the temperature remained constant, what volume would the krypton occupy at (a) 5.00 atm, (b) 0.0500 atm, (c) 555 torr, (d) 5.00 torr, and (e) 5.5 3 1022 torr?

*April 28, 2015*

**Education**

What is the most appropriate reason for having learning centers in the science classroom?

*March 17, 2015*

**Stats**

A pill weighs 100 mg, 8/9 of the pill is active ingrediant, how many milligrams are in the part of the pill that is not the active ingrediant?

*March 4, 2015*

**physics**

Why is blood pressure called excess pressure? Use the term true pressure. Thank you for your help!

*February 25, 2015*

**physics**

Why do we measure blood pressure in mercury?

*February 25, 2015*

**Math**

There are 10,000 lockers. One person opens all the lockers. The second person closes every 2 doors. The third person counts every three locker and does the opposite to the locker. (Open/close it.) The fourth person counts every fourth locker and does the opposite to it. The ...

*February 18, 2015*

**8th grade Science please help**

Can you predict the force needed to stretch the rubber band to 40.0cm?why or why not

*February 1, 2015*

**Algebra 2**

Find all of the zeros of each function 1. q(x)=2x^3-17x^2+90x-41 2.x^3-5x^2-7x+51 3.x^4-9x^3+24x^2-6x-40 Please show work!!! I want to learn how to do it.

*January 17, 2015*

**Algebra 2**

Solve the system algebraically 2x^2-5y^2=1 x^2+5y^2=68 Please show work!!!

*January 11, 2015*

**Algebra 2**

Find the equation for the parabola with the given vertex that passes through the given points. vertex (-4,2) point (-3,0) please show work!!!

*January 11, 2015*

**Social Studies**

When South Carolina's capital was move from Charles Town, what name was given to the new seat of state government? A)Charleston B)Columbia*** C)Florence D)Rock Hill

*December 19, 2014*

**Social Studies**

I have another question too

*December 19, 2014*

**Social Studies**

Thank you!!!!

*December 19, 2014*

**Social Studies**

Is it c?

*December 19, 2014*

**Social Studies**

yes but I do not understand what a weakened sense of regional identity means.

*December 19, 2014*

**Social Studies**

Sectionalism grew in the southern states due to A) an increase in federal regulations on southern industry. B) holidays established to celebrate national events. C) the South's economic dependency on slavery. D) a weakened sense of regional identity.*************

*December 19, 2014*

**Algebra 2**

solve 200(1+8%/12)^12 Please show work!!!!

*December 17, 2014*

**6th grade math**

what is the reason why we have an order of operations? Explain and provide an example.

*December 17, 2014*

**Algebra 2**

Use grouping to solve each of the following equations. 36x+2x^3-36-2x^2=0 Please show work I want to learn how to do it.

*December 11, 2014*

**Algebra 2**

Find the real zeros of each polynomial f(x)=5x^3-40 Please show work I want to learn how to did it

*December 11, 2014*

**Algebra 2**

Solve each polynomial equation. If a solution occurs more than once, state it's multiplicity. 4x^4-13^2+9=0 Please show work I need help

*December 11, 2014*

**Algebra 2**

h=-16t^2 + Vot + h (equation) 5=-16t^2 + 30t + 5 subtract 5 0 = -16t^2 + 30t factor out a t 0=t (-16t + 30) 0=t 0r -16t + 30=0 13 / 16 approximately 1.87 second

*December 9, 2014*

**Algebra 2**

x^2 + y^2 = 20 - x^2 - 6y = 28 ________________ y^2 + 6y = -8 y^2 + 6y + 8 = 0

*December 1, 2014*

**Algebra 2**

How did you get 8? I'm so confused...

*December 1, 2014*

**Algebra 2**

Solving Quadratic Systems x^2+y^2=20 x^2-6y=28 PLEASE SHOW WORK I'M HAVING TROUBLE SOLVING IT

*December 1, 2014*

**Algebra 2**

Solving Quadratic Systems x^2+y^2=2 x^2-6y=10 Please show work I'm having trouble solving it

*December 1, 2014*

**physics**

An unknown mass of a certain solid, initially at 60⁰C, is heated at a uniform at a uniform rate. After 4.0 min the solid reaches its melting point of 80⁰C, and it remains at that temperature for 3.0 min until completely melted. After a further 6.0 min of heating, ...

*November 30, 2014*

**Algebra 2**

And where did you get 32 from?

*November 29, 2014*

**Algebra 2**

Where did you get 29 from?

*November 29, 2014*

**Algebra 2**

Solving Quadratic Systems 2x^2+5y^2=53 4x+y^2=17 Please show work I'm having trouble solving it.

*November 29, 2014*

**Algebra 2**

The correct answer is (3,0) and (3.28,-1.76) It's correct or not

*November 29, 2014*

**Algebra 2**

Solving Quadratic Systems 16x^2-9y^2=144 y=9-x^2 Please show work I'm having trouble solving it.

*November 29, 2014*

**physics**

how much ice at -10degree celsius is needed to cool .1 kg of ethyl alcohol and .1kg of water from 20 degree celcius to 5 degree celsius?

*November 29, 2014*

**Math**

Rafael asked 85 students what kind of pet they liked the most. Exactly 35% of the students said they liked dogs best. What was the total number of students who said they liked dogs best? please show work

*November 25, 2014*

**Math**

ericka rides her bike at a rate of 6 minutes per mile. how many minutes will it take her to ride 16 miles?

*November 25, 2014*

**Math**

Louis paid $42 for a dozen magazines with her annual and subscription to her favorite sport magazine. What is the unit cost for each magazine?(How many magazines did she subscribe to) Please show work.

*November 25, 2014*

**Algebra 2**

thank you

*November 21, 2014*

**Algebra 2**

is the correct answer is x=-1 and y=-3

*November 21, 2014*

**Algebra 2**

Solving Quadratic System y=4x+1 2x-y+1 Please show work!!!

*November 21, 2014*

**Algebra 2**

I corrected your answer :D Thank you

*November 21, 2014*

**Algebra 2**

where did you get x+1=4 from

*November 21, 2014*

**Algebra 2**

Solving Quadratic Systems x+2y=4 3x-y=5 Please show work!!!

*November 21, 2014*

**Algebra 2**

More About Complex Numbers Multiply (4+3i)(1-i) Please show work i need help

*November 18, 2014*

**Algebra 2**

More About Complex Numbers Find the reciprocal. -1-i 2i

*November 18, 2014*

**Algebra 2**

More About Complex Numbers Find the conjugate of each number. 1.)squ root of 3-7/8i 2.) 2-mi 3.) 6 Please show work I need help

*November 18, 2014*

**Algebra 2**

More About Complex Numbers Multiply (4+3i)(1-i) Please show work i need help

*November 18, 2014*

**Algebra 2**

More About Complex Numbers: Solve x and y 4x+5y+13i=7+(6x+5y)i Please show work because I had a hard time finding the answer

*November 18, 2014*

**Chemistry**

A sample of oxygen at room temperature occupies a volume of 5.00x102 mL at 1.50 atm pressure. What pressure (in atm) must be applied to compress the gas to a volume of only 1.50x102 mL? Assume the temperature is constant.

*November 18, 2014*

**Law Studies**

What rights does the Bill of Rights Protect?

*November 13, 2014*

**Algebra 2**

Thank You Reiny

*November 13, 2014*

**Algebra 2**

I got that part but I just want to compare my answer. i got 16/3 and 8/3

*November 13, 2014*

**Algebra 2**

Complete the Square Solve each equation x^2+8x+16=16/9 Show work i want to learn!!!

*November 13, 2014*

**Algebra 2**

What are you talking about?

*November 9, 2014*

**Algebra 2**

that's for another problem show me how to do this one

*November 9, 2014*

**Algebra 2**

Thank you

*November 9, 2014*

**Algebra 2**

Solving By Factoring 2x(2x+1)=2 Please show work!!!

*November 9, 2014*

**Algebra 2**

Solving By Factoring (x-8)(x-5)=x Please show work!!!!

*November 8, 2014*

**Algebra 2**

solve each inequality or equation. Graph the solution. 5(absolute value 3w+2)-3>7 *Please show me the work

*October 15, 2014*

**Algebra 2**

Thank you so much

*October 11, 2014*

**Algebra 2**

solve each system of equation 3x+5y+2z=4 2x-2y+3z=-4 x+y+z=0 *could you show work because I want to learn how you got this answer

*October 11, 2014*

**math**

You can find π (or pi) between square roots √9 and √10

*September 27, 2014*