Sunday

January 22, 2017
Total # Posts: 903

**Algebra 2**

The heights of 200 kindergarten students are normally distributed with a mean of 40 and a standard deviation of 1.8 inches. Approximately how many students have a height between 37.3 inches and 44.5 inches?

*January 18, 2017*

**Algebra 2**

The amount of time required to stack boxes varies directly with the number of boxes inversely with the number of people who are stacking them. If 2 people can stack 60 boxes in 10 minutes, how many minutes will be required for 6 people to stack 120 boxes?

*January 18, 2017*

**algebra 2**

A committee of 3 teachers and 3 students is to be formed to judge a contest. If there are 7 students and 5 teachers to choose from, how many different committees could be formed?

*January 12, 2017*

**algebra 2**

a survey of 20 colleges found that seniors graduated with an average $12000 in debt from student loans. The debt was normally distributed with a standard deviation of $3200. Find the probability that a senior graduated owing more than $16000.

*January 12, 2017*

**English**

One way an English sonnet is different from a Petrarchan sonnet because an English sonnet contains A couplet < A sestet Give quatrains None of the above

*January 4, 2017*

**chemistry**

A major component of gasoline is octane (C8H18). When octane is burned in air it chemically reacts with oxygen (O2) to produce carbon dioxide (CO2) and water (H2O). What mass of oxygen gas is consumed by the reaction of 8.17g of octane?.

*December 4, 2016*

**chemistry**

(2.00x10?)?³

*November 16, 2016*

**math**

solve using law of sines or cosines A=?,B=51°,C=?,a=6m,b=?,c=7m

*November 14, 2016*

**math**

solving using the law of sines or cosines. a=75°,B=?,C=?,a=18cm,b=9cm,c=?

*November 14, 2016*

**Math**

Thanks again Mr.Steve Am I correct on the first one?

*November 8, 2016*

**Math**

what is the domain of (f/g)(x)? {x|x>_0} {x|x>2} {x|x>-2} {x|xer}<-- f(x)=|x|-1,g(x)=1/x What is the domain of (fog)(x) {x|x=/-1} {x|x=/0} <--- {x|xer} {x|x=/-1,x=/1} This is too hard I can't get it.

*November 8, 2016*

**Math**

Which of the following sets of ordered pairs represents a function? {(5,2),(2,6),(5,10),(1,2)} {(-3,2),(2,6),(5,2),(1,7)} {(-3,2,(2,6),(3,10),(1,7)} {(-3,2),(2,6),(5,10),(2,-1)} ^dont get this one.. Which expression is equal to (f+g)(x)? f(x)=x^2+3;g(x)=x-1 x^2+x+2 x^2+-2x+4 &...

*November 8, 2016*

**Math**

Thank you!!

*November 7, 2016*

**Math**

Thanks! I should've just went with b.

*November 7, 2016*

**Math**

Which of the following sets of ordered pairs represents a function? {(5,2),(2,6),(5,10),(1,2)} {(-3,2),(2,6),(5,2),(1,7)} {(-3,2,(2,6),(3,10),(1,7)} {(-3,2),(2,6),(5,10),(2,-1)} ^dont get this one.. Which expression is equal to (f+g)(x)? f(x)=x^2+3;g(x)=x-1 x^2+x+2 x^2+-2x+4 x...

*November 7, 2016*

**Math**

Thanks guys!

*November 7, 2016*

**Math**

10? Okay im lost.

*November 7, 2016*

**Math**

find f(-3) for f(x)= 3x-x^2 f(-3)=0 f(-3)=18 f(-3)=-18<--- f(-3)=-15 What is the range of f(x)? f(x)=|x+1| All real numbers greater than 0 All real numbers greater than -1 All real numbers greater than or equal to 0<- All real numbers greater than or equal to -1 f(x)=4x^...

*November 7, 2016*

**Gph**

I an missing something when it comes to figuring out Relative humidity. 75 degrees F with a mixing ratio of 18.8 I turned it in but I know I was wrong

*October 19, 2016*

**math**

find the image (0,0) after two reflections first across y=3 and then across X-axis

*September 18, 2016*

**Geography**

I can not find anything about it. this is the only scale that has a zero in the middle.

*September 13, 2016*

**Geography**

-why is the “0” not on the far left of the 1: 24,000-mile scale bar?

*September 13, 2016*

**Geography**

Thank you so much

*September 7, 2016*

**Geography**

I'm really having a difficult time setting up the problem. This is my first online assignment

*September 7, 2016*

**Geography**

if it is 10am in laramie Wyoming ( based on 105 degrees west) what time is it in seoul, south Korea( 135 degrees east)

*September 7, 2016*

**Math**

On a 1/4 acre lot what percentage would be left after building a tennis court on a 120'x80'

*August 9, 2016*

**Chemistry**

Theoretically how many grams of malachite should be formed when 1.5 moles of Copper Sulphate reacts with an excess of sodium carbonate?

*July 12, 2016*

**Algebra**

Johnny has 17 marbles. Mary has twice as many marbles as Johnny and half as many as Joe. How many marbles does Mary have?

*July 6, 2016*

**Physics**

What is the electric potential between two points 5.0 centimeters apart if the electric field between those points is a constant 250 Newtons/meter?

*June 17, 2016*

**Physics**

What minimum magnetic field is necessary to exert a 15 Newton force on a 175 milliCoulomb charge moving at 250 meters/secon through the field?

*June 17, 2016*

**Psychics**

What is the electric potential between two points 5.0 centimeters apart if the electric field between those points is a constant 250 Newtons/meter?

*June 17, 2016*

**Algebra 2**

A test has 200 points. THe mean is 120 and the standard deviation is 20. In order to pass the test one must score 140 points. If 360 people took the test how many passed

*May 19, 2016*

**Algebra**

Mark has $3.55 in nickels and dimes. If he has a total of 42 coins, how many of each kind of coins does he have?

*May 5, 2016*

**Algebra**

the sum of two numbers is 20. one number is 1 less than twice the other. find the numbers

*May 5, 2016*

**chemistry**

What volume of a oxygen at STP was collected? oxygen gas is collected over water at a temperaturee of 10 degrees C and a pressure 1.2 atm. The volume of gas plus water vapor collected is 293ml.

*April 6, 2016*

**Math**

I need help how to figure out a take off orders pair X y 0 6 0 8

*April 2, 2016*

**Pre-Calc**

Write the quadratic equation whose roots are 2 and 1, and whose leading coefficient is 1 Not sure even how to start?

*March 20, 2016*

**Pre-Calc**

A slice 1 unit thickness is removed from one see of a cube. Use the rational zeroes theorem and synthetic division to find the original dimensions of the cube, if the remaining volume is 48 cm^3 v= x^3 v=x*x*x x=(x-1)*x*x 48=(x-1)*x*x

*March 17, 2016*

**GEOMETRY/ALGEBRA**

A balloon, with a final volume of 40 cm3, took 4 min to fill. At what rate was the balloon filled? Choose exactly two answers that are correct. A. B. 40 cm3 = 4 min • r C. 40 cm3 • r = 4 min D. r – 4 h = 14 in.

*March 16, 2016*

**calculus**

The region bounded by y=x^2 and y=4 is rotated about the line y=-1. Find the volume.

*March 12, 2016*

**math**

The region bounded by y = x^2 and y = 4 is rotated about the line y = -1. The volume of the solid generated is given by

*March 12, 2016*

**math**

If the curves of f(x) and g(x) intersect x=a and x=b and if f(x)>g(x)>0 for all x on (a,b) then the volume obtained when the region bounded by the curves is rotated about the x-axis is equal to

*March 12, 2016*

**math**

The base of a solid is the region bounded by the parabola x^2 = 8y and y=4. Each cross section perpendicular to the y-axis is an equilateral triangle. Find the volume.

*March 12, 2016*

**math**

find the mode of 3,6,10,13,14,17,19,and 22

*February 17, 2016*

**algebra**

A rental truck costs $50 plus $0.40 per mile. Write an equation that gives the cost of driving the truck x miles Use the intersection of graphs method to determine the number of miles that the truck is driven if the rental cost is $70.

*February 13, 2016*

**algebra**

A rental truck costs $50 plus $0.40 per mile. Write an equation that gives the cost of driving the truck x miles Use the intersection of graphs method to determine the number of miles that the truck is driven if the rental cost is $70. Solve part (b) numerically with a table ...

*February 13, 2016*

**Chem**

For a substance to look red, describe how it interacts with white light?

*February 5, 2016*

**math**

r=9mph,t=2hours d=

*January 29, 2016*

**math**

r=9mph,t=2hours d=

*January 29, 2016*

**math**

An airplane descended 149ft and rose 112 ft Write a number sentence to show the results.

*January 27, 2016*

**Chemistry**

how do you make 400 ml pf 2 Osm solution of Mg CL2?

*January 27, 2016*

**History**

Thanks Ms.Sue!

*January 22, 2016*

**History**

I believe it's B.

*January 22, 2016*

**History**

How are communism and fascism alike? A.In both ideologies, the economy is based on capitalism. B.Governments establish totalitarian control over the population. C.Individual liberties are more important than the greater good of society. C? or B? .. C?

*January 22, 2016*

**Math**

If h is hours and n is the number of radios remaining, complete the equation: n= ____ x h = ____

*January 20, 2016*

**Geography**

Support

*January 9, 2016*

**Physics**

During volcanic eruptions, chunks of solid rock can be blasted out of the volcano; these projectiles are called volcanic bombs. (a) At what initial speed would a bomb have to be ejected, at angle 35degrees to the horizontal, from the vent at A in order to fall at the foot of ...

*December 28, 2015*

**Math**

For the first 30 days of a flu outbreak, the number of students on your campus who become ill is increasing. Which is worse: The number of students with the flu is increasing arithmetically or is increasing geometrically?

*December 17, 2015*

**Math**

In 1985, 10% of Americans had no close friends. On average, this has increased by approximately 0.77% per year a. Write a formula for the nth term of the arithmetic sequence that models the percentage of Americans with no close friends n years after 1984. b. If trends shown by...

*December 14, 2015*

**Math**

Write a formula for the general term (the nth term) of the arithmetic sequence shown below. Do not use a recursion formula. Then use the formula for a'n to find a20, the 20th term of the sequence. a'1 = -13, d = -5

*December 14, 2015*

**Math**

A section in a stadium has 20 seats in the first row, 23 seats in the second row, increasing by 3 seats each row for a total of 38 rows. How many seats are in this section of the stadium? Please explain using words, numbers, and formulas.

*December 13, 2015*

**Algebra**

A regular Pentagon measures 5 1/8cm on one side, what is the perimeter of the Pentagon

*December 8, 2015*

**Pre-calculus**

You start from an acorn and walk 300 yards do north. Then, you turn N 63° E and walk 260 yards. Then, you turn S 55° E and walk 240 yards. Then you walk back to the little acorn.

*December 1, 2015*

**Math**

A bank has two plans for checking accounts. With plan A the charge is $7.50 a month with no fee for each check. With plan B the charge is $3 a month plus an additional 20 cents for each check written.What is the least number of checks a customer must write each month in order ...

*November 29, 2015*

**Algebra**

Kelly is x years old. Mike is 2 years older than twice Kelly's age. The sum of Kelly and Mike's ages is 26. How old is Mike?

*November 29, 2015*

**english**

According to Dickinson, what is the character of Nature? Nature divides people from each other Nature is intentionally heartless Nature offers inspiration and meaning A or probably B.

*November 19, 2015*

**English**

What best describes Emily Dickinson's attitude towards death? A.sentimental B.angry C.accepting <-- With which statement would Emerson most likely agree? A.Objects of nature die, but civilization lasts forever B.Society offers the best way to commune with the divine ...

*November 19, 2015*

**History**

Thank you. I'll be going with the first answer.

*November 13, 2015*

**History**

Thank you... How did governments address the issue of fading enthusiasm for the war within their populations? They allowed soldiers more time to visit their families ? The desire for independence by __________ complicated the Ottoman Empire's entry into the war on the ...

*November 13, 2015*

**History**

12. What effect did technology have on World War I? It enabled nations to defeat their enemies with few casualties. It greatly increased the number of casualties. <- It decreased the amount of money needed to wage war. Question 13 The desire for independence by __________ ...

*November 13, 2015*

**Science**

electron microscope. ??

*November 13, 2015*

**History**

Thank you :)

*November 13, 2015*

**History**

Question 1 In the late nineteenth and early twentieth centuries, European nations formed alliances in order to __________. keep peace on the continent <-- build large empires increase their wealth Question 2 Which of the following answer choices correctly identifies the ...

*November 13, 2015*

**Math/ Proportions solve using unit rates**

Contestants in a dance-a-thon rest for the same amount of time every hour. A couple rests for 25 minutes in 5 hours. How long did they rest in 8 hours? 25/5=5 8/5= 1 3/8 hours

*November 11, 2015*

**Managerial Economics**

I am completely lost in working this problem. 1. The total operating avenues of a public transportation authority are$100 million while its operating costs are $120 million. The price of a ride is $1, and the price of elasticity of demand has been estimated to be -0.4. By law...

*November 7, 2015*

**English**

or is it the chaos and danger of war?

*October 30, 2015*

**English**

In terms of style and technique, "Old Ironsides" is __________. distinctive and unique similar to many European poems <--- B experimental and modern Why did Oliver Wendell Holmes write about the USS Constitution when rumors held that the ship was going to be ...

*October 30, 2015*

**Algebra**

a^2 x a^5/ a 3 = a^4? (h^2)^5 = 2 x 5 = h10? a^7/a^3 = 7-3 = a4? b^2 c^5 / bc^3 = bc2? or b2c?

*October 29, 2015*

**math**

thank you :)

*October 29, 2015*

**math**

1. Put these rational numbers in order from smallest to largest. 3/4= 0.75, 2/7=0.287, 2/10=0.2, 5/8= 0.66, 8/4=2 2/10, 2/7, 5/8, 3/4, 8/4 ? 2. Order the numbers from least to greatest. 1.5, 3.25, 1.66, 3.33, 2.4 A)1.5, 1.66, 2.4, 3.25, 3.33 <--- B)1.5, 1.66, 2.4, 3.33, 3....

*October 29, 2015*

**Math**

Sorry i need to get an A. 1. Put these rational numbers in order from smallest to largest. 3/4= 0.75, 2/7=0.287, 2/10=0.2, 5/8= 0.66, 8/4=2 2/10, 2/7, 5/8, 3/4, 8/4 ? 2. Order the numbers from least to greatest. 1.5, 3.25, 1.66, 3.33, 2.4 A)1.5, 1.66, 2.4, 3.25, 3.33 <--- B...

*October 29, 2015*

**Math**

6. B. {-4.3, -4, -12, 1.2, 9} -4.3 is smaller than -4.?

*October 29, 2015*

**Math**

1. Where is 4.89 on the number line Between 1 and 2 Between 2 and 3 Between 3 and 4 Between 4 and 5 <--- 2. 7.07 __ 8.83 a. < <--- b. > c. = d >= 3. Where is 8.366 on the number line? Between 6 and 7 Between 7 and 8 Between 8 and 9 <--- Between 8 and 10 4. ...

*October 29, 2015*

**math**

sorry 0.2 .. its 25

*October 29, 2015*

**math**

She is telling you to divide 5 by 2.

*October 29, 2015*

**Algebra**

:) thanks.

*October 29, 2015*

**Algebra**

Oh so it's between 0.00 and 1.00?

*October 29, 2015*

**Algebra**

Where would 0.764706 be on the number line? Between 1 and 2 < Between 0 and 1 Between -1 and 0 Between -2 and -1

*October 29, 2015*

**criminal justice**

Thank you :)

*October 29, 2015*

**criminal justice**

The harshest diposition that a juvenile judge can impose is? - Assignement to a diversion program - Incarceration <--- ? -Commitment to a residential facility -Probation The authority of both of the adult court system to hear juvenile cases is referred to as? -...

*October 29, 2015*

**Criminal Justice**

thank you

*October 29, 2015*

**Criminal Justice**

a suspect can be compelled to testify against himself at trial True or false? < True ? Prisons contain only felony criminals? T < or F Prisoners give up all consitutional rights when they are prosecuted or sentenced? T or F < The possibility of parole is a ...

*October 29, 2015*

**Amadlelo aluhlaza SS**

Yes, you need to add several medical classes to your course load though.

*October 27, 2015*

**Art History**

Ms. Sue?

*October 5, 2015*

**Art History**

anyone??

*October 5, 2015*

**Art History**

A. Pyramid B.Propaganda C.Babylonians D.Cuneiform E.Gudea of Lagash F.Ziggurat G.Amorites H. Clay I.The Sumerians J.Mesopotamia 1. Ancient region of Southwest Asia between the Tigris and Euphrates rivers. 2. They invented the wheel 3. Sumerian writing system 4. A semitic group...

*October 5, 2015*

**Math**

you need to set up a proportion you say 7 = x . == === 9 315 and solve by cross multiplying (7)x(315)=(9)x(x) solve for x by dividing both sides by 9 so x= (7/9)x 315 use calcualtor

*September 28, 2015*

**Chemistry 102**

What is the freezing point in ∘C of a solution prepared by dissolving 6.60 g of MgCl2 in 110 g of water? The value of Kf for water is 1.86 (∘C⋅kg)/mol, and the van't Hoff factor for MgCl2 is i = 2.7.

*September 23, 2015*

**stats**

(white,black)

*September 22, 2015*