Friday

March 27, 2015

March 27, 2015

Post a New Question | Current Questions

**Inter. Algebra**

what is the answer to 2i to the 5th power? i^2 = -1 --> i^4 = 1 ---> i^5 = i (2i)^5 = 32 i thanks for the info!
*Saturday, December 2, 2006 at 6:36pm*

**Science**

Today's fossil fuels began forming 300 million years ago. What allowed the process to begin? A Mammals ate all of the plants B Rainfall eroded huge mountains C Dinosaurs roamed the land D Many huge plants grew, died, and decayed Think about which one of those processes can...
*Tuesday, November 14, 2006 at 5:28pm*

**5th grade math**

what is the least common multiple The least common multiple is the lowest possible number that has both numbers for a factor. For instance, if you are asked to find the LCM for 4 and 8, the LCM would be 8 because it is divisible by both 4 and 8. If you were given 3 and 4, the ...
*Thursday, October 5, 2006 at 6:24pm*

**Distributive property**

How would I multiply these expression? 6(h-4) -3(x+8) -10(-a+5) PLease and thank-You Multiply the coefficient (outside the parentheses) by each term inside the parentheses. For example, 6(h-4) = 6h - 24 You do the others do you have 5th grade distributive property jiskha ...
*Wednesday, September 20, 2006 at 1:09am*

**Math**

Homework grades are 5% of the overall grade. Lab work is 15% of the overall grade. Tests are 60% of the overall grade. The Final is 20% of the overall grade. Could a student that has a 75 homework average, 80 lab average, 40 test average, and 50 on the final pass the course? ...
*Tuesday, September 19, 2006 at 11:49pm*

**Old Factor qstn:BobP**

Bob, I did eventually find a factorization for the expression x^4 + 2x^3 + 4x^2 + 8x +16 The original problem was probably something like x^5-32=0. I think the poster divided (x-2) into it to get the expression above. This of course is the 5th roots of 32, x=2 being the only ...
*Tuesday, August 29, 2006 at 1:01pm*

**Maths lit**

Fraction for grade 10 assessment
*Wednesday, March 25, 2015 at 3:53pm*

**Mathematics**

The sum of the 1st and 2nd terms of an AP is 4 and the 10th term is 19. Find the sum of the 5th and 6th terms
*Friday, March 13, 2015 at 4:36am*

**addmath A.P.**

Tn=3n-2 Find the first term,a;the common difference,d;and then find the 5th term.
*Saturday, March 7, 2015 at 7:51pm*

**algebra-6th grade**

what is a coefficient?
*Wednesday, February 25, 2015 at 4:08pm*

**Social Studies/6th Grade Geography.**

"Why do most people live in the Western part of Columbia?" A - to enjoy the cooler climate of the mountains, B - to be closer with the boarder of Venezeula, C - to live along the Pacific coast, D - to benefit from the country's lush rainforests. I was trying to ...
*Friday, February 20, 2015 at 6:20pm*

**arithmetic**

Determining the first three terms of an ArithmetiC progressionof which the (a.)10th term is 31 and the 15th term is 49 (b.)7th term is 3 and 12th term is -3 (c.)5th term is 8 and the 11th term is -28 (d.)9th term is7+9x and d=2x,Show all calculations
*Tuesday, January 27, 2015 at 1:00pm*

**statistics**

suppose a sample of 2404 tenth graders is drawn.Of the sampled, 601 read at or below the eighth grade level. using the data, construct the 98% confidence interval for the population proportion of tenth graders reading at or below the eighth grade level.
*Friday, January 23, 2015 at 1:49pm*

**math**

suppose a sample of 2404 tenth graders is drawn.Of the sampled, 601 read at or below the eighth grade level. using the data, construct the 98% confidence interval for the population proportion of tenth graders reading at or below the eighth grade level.
*Friday, January 23, 2015 at 12:54pm*

**grade 6 math**

13 more than product of m and 5
*Wednesday, January 21, 2015 at 7:16pm*

**phySICS NEED HELP ASAP**

Sally the bug has an initial speed of 20.0cm/s. She then accelerates at 8.00cm/s^2 for 5.00s. calculate sallys total displacement? which i did and got 200 cm Displacement during the 5th second? can you please help and show all work
*Tuesday, January 6, 2015 at 10:14pm*

**Civics**

Lloyd enjoys deer hunting. He goes into local store to purchase a new gun. Which amendment to the Constitution ensures Lloyd's ability to purchase a new gun? 5th amendment 1st amendment 9th amendment 2nd amendment
*Tuesday, January 6, 2015 at 4:02pm*

**physics **

Sally the bug has an initial speed of 20.0cm/s. She then accelerates at 8.00cm/s^2 for 5.00s. calculate sallys total displacement? which i did and got 200 cm Displacement during the 5th second? can you please help and show all work
*Tuesday, January 6, 2015 at 3:47pm*

**Civics**

Lloyd enjoys deer hunting. He goes into local store to purchase a new gun. Which amendment to the Constitution ensures Lloyd's ability to purchase a new gun? 5th amendment 1st amendment 9th amendment 2nd amendment
*Tuesday, January 6, 2015 at 3:34pm*

**Grade**

If there are 70 questions and you get an 80 how many did you miss
*Thursday, December 18, 2014 at 9:42pm*

**math**

If Susan takes two tests and makes a makes a 54/100 on the first test and a 63/100 on the second test, and is given a third test and makes an 80/100(which can only count as 20% of her total grade for all three test, what is her final grade/score.
*Thursday, December 18, 2014 at 1:14pm*

**division **

9/72=8 56/7=8 49/6=8 36/9=4 64/8=8 6/24=4 5/25=5 3/15=5 Easy I'm in fifth grade and I know this 😜
*Monday, December 15, 2014 at 3:58pm*

**math**

The 3rd term of a geometric progression is nine times the 1st term.if the 2nd term is one twenty fourth the 5th term.find the 4th term.(there is a mistake in the 2nd to the last statement.help locate the mistake{final answer 4th term =48).i solved to this extent.ar^2=9 r=3.
*Friday, November 28, 2014 at 11:19am*

**math**

the 3rd term of a geometric progression is nine times the 1st term.if the 2nd term is one-twenty fourth the 5th term.find the 4th term.(my solution so far).ar^2=9a r=sqr of 9 r=3.help me find the 1st term
*Friday, November 28, 2014 at 10:57am*

**math**

The 3rd term of a geometric progression is nine times the first term.if the second term is one-twenty fourth the 5th term.find the 4th term. solution ar^2=9a r=sqr of 9 r=3.pls help me on how to get the first term(a)
*Thursday, November 27, 2014 at 2:17pm*

**Math**

I need help on how to explain to my 5th grader how to come up with an algebra equation from a word problem. Any suggestions? Example: Gerry had a total of 30 pens and pencils. He decided to trade with his friends all his pens for pencils. If he traded every pen for 2 pencils ...
*Thursday, November 20, 2014 at 8:07am*

**geometric progression**

the 3rd term of a gpis 10 and the 6th term is 80 find the common ratio No2 if the 2nd term of a gp is 4 and the 5th term is 1over 16,the7th term is_
*Tuesday, November 18, 2014 at 3:28pm*

**criminal justice**

examine the public policy of the exclusionary rule with respect to the 5th Amendment requirement of self-incrimination. Your explanation should include an assessment of the major U.S. Supreme Court cases that have contributed to applying the rule to police interrogations. ...
*Saturday, November 15, 2014 at 3:00pm*

**math**

the traffic signal at 4th and main turns green every 6 minutes. the signal at 5th and broadway turns green every 4 minutes. if both turned green at 12:15 p. m., when are the next three times that both will turn green at the same time?
*Tuesday, November 11, 2014 at 8:53am*

**idk **

what grade level is physics??
*Thursday, October 9, 2014 at 1:44pm*

**Math**

1. Find the common ratio and the 7th term of the sequence 2/9, 2/3, 2, 6, 18, ..... 2. The 3rd and 5th terms of a geometric sequence are 2 and 1/2 respectively. What is the first term? 3. Find the geometric mean between: a. 1/2 and 1/3 b. sqrt5 - sqrt2
*Tuesday, October 7, 2014 at 9:31pm*

**Math**

A spherical balloon is to be deflated so that its radius decreases at a constant rate of 12 cm/min. At what rate must air be removed when the radius is 5 cm? Must be accurate to the 5th decimal place. I keep getting -3769.91118. What am I doing wrong? Please help!
*Sunday, October 5, 2014 at 8:08pm*

**Math**

A spherical balloon is to be deflated so that its radius decreases at a constant rate of 12 cm/min. At what rate must air be removed when the radius is 5 cm? Must be accurate to the 5th decimal place. It seems like an easy question but no matter how many times i attempt it I ...
*Sunday, October 5, 2014 at 7:43pm*

**geometric sequence**

The sum of the 2nd and 5th terms of a geometric sequence is 3.5. The sum of the 3rd and 6th is -7. Determine the ratio r of the sequence and the first term a.
*Saturday, September 27, 2014 at 10:36pm*

**physics**

a car cover 100 m in 5th second and 120 m in 8th second during its motion ?calculate the acceleration and distance covered in 20th second?
*Friday, September 19, 2014 at 2:41pm*

**Grade**

What is my grade if I have two 100's and two 70's
*Tuesday, September 9, 2014 at 8:34pm*

**Math 2 **

Juanita runs every 3rd day and swims every 5th day. If Juanita runs and swims today, in how many days will she run and swim again on the same day?
*Thursday, September 4, 2014 at 10:52pm*

**math**

what is the base 10 of 469 3rd grade
*Thursday, August 21, 2014 at 10:03pm*

**grade 7 maths**

Missing input W+9=14
*Monday, August 4, 2014 at 12:53pm*

**Essay Topic (Synthesis)**

Is the topic of Immigration Reform in the United States to controversial for my synthesis essay? I am writing a synthesis essay for my class, and it is a big portion of my grade. I have a lot of information about Immigration, but I'm afraid the topic will be too ...
*Sunday, August 3, 2014 at 12:37am*

**programming**

Professor Merlin has asked you to help him. He has 5 students who have taken four tests. He wants a program where he can enter the students name and their four test scores. After entering all 5 students then he wants a grade report printed showing the student name and their ...
*Thursday, July 24, 2014 at 12:16am*

**statistics**

If you are told the mean grade in ECON 2023 is 80 with a standard deviation of 5, what is the probability that if you randomly selected 36 students you would find an average grade of 82 or more? I found the Z-score: 82-80/5 Which gave me .6554 then 1-.6554=.3446 So 34% would ...
*Sunday, July 6, 2014 at 1:32pm*

**programming oop **

I need a help regarding this. Compute and display the sum o 1st and 2nd number, Difference of sum and 3rd number, product of difference and 4th number, Quotient of product and 5th number using Eclipse Helios. My subject is OOP
*Saturday, June 21, 2014 at 9:54pm*

**programming**

I need a help regarding this. Compute and display the sum o 1st and 2nd number, Difference of sum and 3rd number, product of difference and 4th number, Quotient of product and 5th number using Eclipse Helios. My subject is OOP
*Saturday, June 21, 2014 at 9:49pm*

**4th grade math**

For a survey, 20 students in one class were asked to name their favorite sport. the tally chart shows the result. Basket ball - 6 soccer-7 hockey - 5 volleyball - 2 suppose all 100 students in the grade were asked to name their favorite sport. how many students would you ...
*Thursday, June 5, 2014 at 7:37pm*

**I may fail the 8th grade?**

My home life has been crazy so I missed a lot of school and got bad grades. My anxiety is through the roof right now and i'm shaking a lot. all i need to do is get a 75% in math. and i just can't this is my biggest fear I can't see how life goes on after failing a ...
*Thursday, June 5, 2014 at 3:24pm*

**math**

Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.37 cross 10−5 ( to the 5th power) watts/cm2 ( cm squared)
*Thursday, June 5, 2014 at 11:30am*

**computer programming**

1. Scanf 5 names of you and your friends 2. Printf hi to all of them. 3. Ask all of them for their ages. 4. Printf the information in tables as shown below. Name age StudName1 19 StudName2 20 StudName3 18 StudName4 34 StudName5 12 5. Use selection statement to do the following...
*Wednesday, June 4, 2014 at 9:31pm*

**chemistry**

A sample contains Hydrogen atom ,He+ ion, Li2+, & Be3+ ion. In H atom electron is present in 8th orbit, in He2+ e- is present in 6th orbit, Li2+ in 5th orbit& in Be3+ electron is present in 4th orbit. All the atoms are de-excited to the ground state. Calculate the total no. of...
*Wednesday, June 4, 2014 at 4:36am*

**statistics**

An 8th grade history teached studied the statistics for her mid-term exam. The average grade for the mid-term was 84 points, and the standard deviation was 8 points. The Z-score for a student who scores 90 on the exam is: 84-90/8= -0.75
*Tuesday, June 3, 2014 at 7:36am*

**Math binomial formula and sequence**

a) use the binomial formula to find the 5th term of the expansion (2x - 3)^8 ------ i got 90720x? b) Find a_n, the general term for a geometric sequence, given that the fourth term, a_4 is 16 and the seventh term is -128 c) Find the sum of 8+12+16+20+24+.....to 15 terms thanks!
*Sunday, May 25, 2014 at 6:02am*

**Math 8th Grade!!!!**

27 - (-9) (-2) ÷ 3 * (-4) - 0 - 33 - (-39)
*Wednesday, May 21, 2014 at 6:56am*

**math 8th grade**

-15 - (3-7) + 6 * (-2) + (-8) - 9
*Wednesday, May 21, 2014 at 6:49am*

**math Question**

the 5th term in a geometric sequence is 160. The 7th term is 40. What are the possible values of the 6th term of the sequence +70 70 +80 80
*Monday, May 19, 2014 at 4:49pm*

**math**

Taylor surveys students in one grade level who own at least one pet. She finds that 50% of the students surveyed own 2 pets, 3 students own 3 pets each, and 2 students own 4 pets each. Eight of the students in the grade own 1 pet. Considering the number of pets as the random ...
*Monday, May 19, 2014 at 10:21am*

**Statistics**

Describe whether the following study would most likely be "observational" or experimental", and why it would be so. The nurses on the 5th floor record the medicines administered everyday and report results to the doctors.
*Saturday, May 17, 2014 at 12:39am*

**math**

Suppose that you are taking a course that has three exams which count for three-fifths of your grade and a final which counts for two-fifths of your grade. On your first three tests your scores on were 84, 72, and 96. To get an B in the course, you must have an average of at ...
*Friday, May 9, 2014 at 9:07am*

**Science**

GCSE Physics-Forces affecting falling objects. My falling object is a skydiver Can you please help me to find the information needed? Nothing too complicated please. Here is a list of things I need to include but I have no idea where this information can be found on the ...
*Sunday, May 4, 2014 at 2:18pm*

**Science **

GCSE Physics-Forces affecting falling objects. My falling object is a skydiver Can you please help me to find the information needed? Nothing too complicated please. Here is a list of things I need to include but I have no idea where this information can be found on the ...
*Sunday, May 4, 2014 at 10:52am*

**4 the grade math**

What's 3/4 of blank=75
*Tuesday, April 29, 2014 at 11:35pm*

**9th grade math**

4x^2=80x-400
*Tuesday, April 8, 2014 at 10:57pm*

**9th grade math**

x^2+8x+16=25
*Tuesday, April 8, 2014 at 10:56pm*

**9th grade math**

4m^2-24m+36=0
*Tuesday, April 8, 2014 at 10:51pm*

**3rd grade math**

Explain how you know 6/6 and 1 are equivalent?
*Tuesday, April 8, 2014 at 4:14pm*

**math - 6th grade**

HELP! How do I solve for x: 4x+2=3x+9
*Thursday, April 3, 2014 at 6:48pm*

**4th grade math**

What is 1. 2/3 + 3/6 = 2. 3 1/10 + 17/5 = 3. 3 2/6 - 1 5/6 =
*Monday, March 24, 2014 at 6:14pm*

**Grade 6 math**

What is 2 to the 2nd power
*Thursday, March 20, 2014 at 5:53pm*

**to ms. sue**

what was your 4th grade teacher and why
*Wednesday, March 5, 2014 at 11:09pm*

**6 grade math**

How do you solve this problem: x + 2 1/5 = 7?
*Monday, March 3, 2014 at 10:36pm*

**physics Sound PLEASE HELP ASAP!!! PLEASE**

The 2nd harmonic of a string of length 60 cm and linear mass density 1.1 g/m has the same frequency as the 5th resonance mode of a closed pipe of length 0.8 m. Find the tension in the string.
*Sunday, March 2, 2014 at 7:25pm*

**physics Sound**

The 2nd harmonic of a string of length 60 cm and linear mass density 1.1 g/m has the same frequency as the 5th resonance mode of a closed pipe of length 0.8 m. Find the tension in the string.
*Sunday, March 2, 2014 at 7:24pm*

**4TH GRADE MATH**

MS T BOUGHT CUPCAKES FOR HER 3RD GRADE CLASS. MS. CASA BOUGHT TWICE AS MANY CUPCAKES AS MS T, AND 4 TIMES AS MANY CUPCAKES AS MS. G. MS. G BOUGHT 241 CUP CAKES. A. HOW MANY CUPCAKES DID MS T BUY? B. MS.. B CAME LATE TO THE PARTY AND HALF OF THE CUPCAKES HAD ALREADY BEEN EATEN...
*Wednesday, February 26, 2014 at 5:03am*

**maths**

There are 6 terms in an A.P. 6th term is 3 times the second term and 4th term is 4 times the first term. if the 5th term is 15 find the terms
*Tuesday, February 25, 2014 at 5:32am*

**4 grade math**

What is the sum of4/10 and 40/100
*Monday, February 24, 2014 at 10:03pm*

**Essay**

Would this essay be good? Anything I should add? I still need like 200 more words.. Intro; Hello, I am 12 years old and my name is Navpreet Chauhan. I have been going to Hamilton Southeastern schools for about 7 years. I love helping others out. Scholarship; I usually make it ...
*Thursday, February 20, 2014 at 6:51pm*

**math**

The grade of a road is 6%. What is its angle of elevation?
*Thursday, February 20, 2014 at 1:15pm*

**economic**

Suppose, unfortunately , your mathematics and economics professors have decide to give tests 2 day from now and you can spend only a total of 12 hours studying for exams .After some thought, you conclude that dividend your study time equally between each subject will give you ...
*Sunday, February 9, 2014 at 12:24am*

**economic**

10. Suppose, unfortunately , your mathematics and economics professors have decide to give tests 2 day from now and you can spend only a total of 12 hours studying for exams .After some thought, you conclude that dividend your study time equally between each subject will give ...
*Sunday, February 9, 2014 at 12:18am*

**math**

in an AP the 10th term is 54 and 5th term is 4 times the 2nd term . Find the 1st term 'a' and common difference 'd'
*Monday, February 3, 2014 at 10:58pm*

**12th Grade Vocabulary Antonyms Practice**

Does anyone know of a good place that I can practice 12th grade vocabulary antonyms?
*Saturday, February 1, 2014 at 3:17pm*

**Math**

The nth term of an A.P. Is 3 times the 5th term.(a)find the relationship between a and d.(b)prove that the 8th term is 5times the 4th term.
*Wednesday, January 29, 2014 at 6:38pm*

**Math 5th**

Val walks 2 3/5 miles each day. Bill runs 10 miles once every four days. In 4 days who covers more distance?
*Monday, January 27, 2014 at 8:01pm*

**Maths**

In an A.P ratio of 3rd term and 5th term is 3:7. a)Find the ratio of the 4th and 6th term? b)Find the ratio of the 6th and 12th term?
*Wednesday, January 22, 2014 at 6:08pm*

**maths**

The 2nd term in Geometric sequence is -4 and the 5th is 32 ,find the general formula \term and the first 3 terms ,find the 18th term
*Tuesday, January 21, 2014 at 3:16pm*

**statistics**

What is the probability for a: a. Randomly selected person being a male in grade E? b. Randomly selected male being in grade E? c. Why are the results different?
*Sunday, January 19, 2014 at 11:23pm*

**statistics**

Last week Tom had exams in Math and in Spanish. He had a score of 45 on the Math exam and a score of 65 on the Spanish exam. For which class should Tom expect the better grade? a. Math b. Spanish c. The grades should be the same because the two exam scores are in the same ...
*Tuesday, December 31, 2013 at 8:07pm*

**linear optimization**

During a summer session a student enrolls in two courses, psychology for four hours and engineering for three hours. The student wants to use the available time to amass the largest number of grade points (numerical grade multiplied by the number of hours). Students who have ...
*Sunday, December 29, 2013 at 10:45am*

**language arts**

Identify the appositive phrase in the following sentence. Mrs.Talavera,an eight grade teacher at Rosewood Middle School,led the community meeting about childhood obesity. -Mrs.Talavera -an eight grade teacher at Rosewood Middle School -led the community -about childhood obesity
*Tuesday, December 17, 2013 at 8:30pm*

**Math (7th grade)**

I have a math question that I do not really understand how to answer is there someone who can walk me through it? In Pinecrest middle school there are 58 6th graders 76 7th graders, and 38 8th graders. The counsel is made up of 35 students who are chosen to represent all three...
*Tuesday, December 17, 2013 at 3:42pm*

**7th grade mat**

8g+2+4g-2-3g=? (9g)
*Thursday, December 5, 2013 at 11:57pm*

**math**

A rubber ball is dropped from a height of 729 feet, and at each bounce it rebounds one-third of the height from which it last fell. How far has the ball travelled by the time it strikes the ground for the 5th time?
*Friday, November 29, 2013 at 10:46pm*

**4th Grade Math: Help Is Needed ASAP**

My son is in the fourth grade and is needing help with these math problems. Can someone please help him with these problems. 1. 2/3+2/9= 2. 3/5+3/10= 3. 5/12+1/3= 4. Find the sum of 1/6 and 1/12 5. Add 1/4 to the answer in Exercise 4. 6. What is the sum of 1/8, 1/4, and 3/8? 7...
*Monday, November 18, 2013 at 8:21pm*

**math**

Carlos was 5feet,8inches tall at the beginning of ninth grade. he grew 4 3/4inches during that school year and 2 1/4inches during follow the summer. how tall was Carlos at the beginning of tenth grade? Express his height in feet and inches.
*Monday, November 18, 2013 at 12:02pm*

**english**

Please help me. I wanna make sure if all corrects this. Thanks. Some people are so (1)ominous to living near a nuclear plant that they want the plant’s license to be (2)nullify. They say the plant infringes on every homeowner’s right to safety. Shannon is (3)endowed ...
*Wednesday, October 23, 2013 at 2:36am*

**Geology**

Can someone please help me with my review? 1)What grade of metamorphism common rocks are formed in- --- Is it high grade? 2)What is the name of the most rapid kind of mass wasting is> -- Weathering? 3)How to tell is a rock is igneous, metamorphic or sedimentary. 4)How to ...
*Thursday, October 17, 2013 at 11:50pm*

**Geogoly**

Can someone please help me with my review? 1)What grade of metamorphism common rocks are formed in- --- Is it high grade? 2)What is the name of the most rapid kind of mass wasting is> -- Weathering? 3)How to tell is a rock is igneous, metamorphic or sedimentary. 4)How to ...
*Thursday, October 17, 2013 at 11:42pm*

**Pre Algebra**

In Wilbur's math class, his grade is based on the average score of six tests, each worth 100 points. Wilbur always worries about his grade. He knows that his average on the first four tests is 88.5. What is the lowest average he could get on his next two tests and still ...
*Thursday, October 17, 2013 at 8:58pm*

**Fourier Series**

A periodic function f(t), with period 2π is defined as,f(t) = c for 0 < t < πf(t) = -c for -π < t < 0where c = 1.4, Taking π = 3.142, calculate the Fourier sine series approximation up to the 5th harmonics when t = 1.63. Give your answer to 3 ...
*Sunday, October 13, 2013 at 4:29am*

**math**

I need help on study links 2.9 for 5 grade
*Thursday, October 10, 2013 at 5:32pm*

**6th grade math**

6 1/2-7/8 / 5 11/16 evaluate the expresson
*Monday, October 7, 2013 at 6:03pm*

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