Posts by Jo
Total # Posts: 530
 Well what do you mean by better description? What would any of those be better describing?
 The mean is 4, the median is 3, and the mode is 2
 "Explain which measure of central tendency best describes the data." is the part I need help with

Math
7. Find the mean, median, and mode of the data set. Explain which measure of central tendency best describes the data. pages of homework: 2 2 2 5 3 9 7 3 5 2 8. You are training for a marathon. On the first three days of training, you run for 2, 4, and 5 miles. How many miles ... 
Math
Solve the quadratic equation 2x²  4x + 1 = 0 How many solutions are in the equation 3x² + 4x  7 = 0  So wait would x^2  6x + 9 = 0 be the answer for number 1?
 Solve the system of equations: y=4x+8 x^2 + 7x  20
 Solve the system of equations: y=x^2 + 9 y=6x

Algebra
How do I do these?  Thank you SO MUCH anonymous

Maths
Solve the quadratic equation 2x²  4x + 1 = 0 How many solutions are in the equation 3x² + 4x  7 = 0 
Mathematics
Solve the quadratic equation 3x²=27 Solve the quadratic equation 2x²  4x + 1 = 0 
math
At Supermart an IPod that originally sold for 74.99 dollars was discounted 25 percent in April and then another 15 percent of the already discount price in May. At Bigmart that same IPod that originally sold for 74.99 dollars was discounted 15 percent in April and then another... 
Chemistry
25ml of sulfuric acid from a car battery was accurately diluted to 500ml. 25ml of the diluted solution was titrated with 0.206 mol/L sodium hydroxide. It required 38.8 ml. Calculate the Molarity of the original battery acid and it's concentration in grams per litre. Answer... 
maths
Find an equation of the line that is perpendicular to the line whose equation is 2x – 5y = 3 and passes through (2, 7). Last time i posted this, the answer was wrong 
maths
Find an equation of the line that is perpendicular to the line whose equation is 2x – 5y = 3 and passes through (2, 7).  Thanks Dude!

maths
Write an equation of the line that is parallel to the equation 5x – 2y = 6, that passes through (4, 2). 
geometry
a 20 foot latter will be used to paint the exterior of a house. The foot of the latter needs to be 4.5 feet from the base of the house. What is the maximum height the ladder will reach?  A squared plus B squared equals C squared. C being the hypotenuse (longest side) Find out which sides arn't the hypotenuse, then square them, add them, and see if they make up the third side :) If it was me I would get rid of the fractions and put it into decimals too....
 This is all cross multiply and divide. It's really useful real world math that you will use a million times. Calculating tips, whether a sale price or a coupon price is better. The easiest way I find is to set it up in a box where you have the full price next to 100% then ...
 You sir, are a hero. My textbook only teaches the crossing out method which works well with numbers under 40 but I was at a loss as to how to do them in the three digits.

Math Combinatories
In the 2011 Canadian general election, 166 conservatives, 103 ndps, 34 liberals, 4 bloc quebecois, and 1 green were elected. If an allparty committee is to be formed consisting of 9 conservatives, 5 ndps, 2 liberals, 1 bloc quebecois, and 1 green, how many different ... 
Math
Mr.Macho ate 125 hot dogs over a five day period. Each day he ate seven more hot dogs than on the previous day. How many hot dogs did he eat the first day. 
Math
Mr.Macho ate 125 hot dogs over a five day period.Each day he ate seven more hot dogs than on the previous day. How many hot dogs did he eat the first day 
Math
Mr.Macho ate 125 hot dogs over a five day period.Each day he ate seven more hot dogs than on the previous day. How many hot dogs did he eat the first day 
Math
Use the slopes to determine if the line between the points (3, 5) and (2, 7) is parallel, perpendicular or neither to a line that passes through the points (10,5) and (6, 15) a) Parallel b) Perpendicular c) Neither  5.46*10^4

Algebra
Damien is 6 years older than Emma. In 9 years the sum of their ages will be 82. How old is Damien now?  does anyone have lesson 10 linear function test answers

Physics
Okay, I'm really confused in general. My question says: "A solid piece of clear transparent material has an index of refraction of 1.61. If you place it into a clear transparent solution and it seems to disappear, approximately what is the index of the refraction of ... 
algebra
An object is thrown straight up into the air at an initial vertical velocity of 32 feet per second from an initial height of 128 feet and is represented by the vertical motion model, h(t) = 16t^2 + 32t + 128. How much time does it take for the object to reach its maximum height? 
algebra
How much of a solution that is 45% sulfuric acid needs to be mixed with a solution that is 90% sulfuric acid to produce 120 liters of a solution that is 60% sulfuric acid? 
algebra
How much of a solution that is 45% sulfuric acid needs to be mixed with a solution that is 90% sulfuric acid to produce 120 liters of a solution that is 60% sulfuric acid? 
Math
Felicia makes 1/2 gallon of fruit punch. She pour an equal amount into 8 glasses. What fraction of the fruit punch in each glass 
math
4+7x+4=8 direct vriation 
math
the sum of two numbers is 20.one number is 3 time the other number . find the two numbers?  thanks! pens answers are right.

math
if the terminal side of an angle , theta, passes through the point (3,5). find sin(theta) 
math
TWO YEARS AGO, KIM INVESTED RMP AT HER ACCOUNT WHICH EARNS r% simple interest . after eighteen months , she noticed that the amount had become rm 10450 and today amount is rm 10600 . FIND THE VALUE OF p and r 
Math
If Mrs. Jacobsen wants to buy the item with the unit price , what item should she order and how many of that item should she order? 
Math (statistics)
Suppose an employee starts working after completing her MBA at age 30 at a starting salary of $50,000. She expects an annual salary increase to be at minimum 1%, at maximum 5%, with a uniform distribution. Her retirement plan requires that she contribute 8% of her salary, and ...  o.o4

Math
How to find the transformations of these graphs of equations? 1. y=(x+2)^23 2. y=3x^26 3. y=2(x4)^2+5 Please teach me..  Kinetic energy equation = 1/2mv^2 1/2(50 kg)((10m/s)^2) would result in something along the lines of 2500 joules...
 Okay, well to find the area of a square you would need to do one side times another side which would result in the area. According to this equation in polynomials, it would be (2x+5) cm times (2x+5) cm.... Once you FOIL these sides together you should get something on the ...

Physics
Two parallel straight wires are 1 meter apart. Each wire carries a current of 2 Amperes in the same direction. What is the resultant magnetic field produced by both wires at a point: 2) 1/4 of the distance between them I don't really understand what 2 is saying to be real ... 
Physical Educationcal Educationcal
What is the role of 1mile running? ( like important things, teaching points ) I need to find for P.E. class.. Please introduce me some good websites 
Art
Hundertwasser who was born in December15, 1928 in Austria and died in February19, 2000. What do you think about characteristics of his work? 
English
If you suddenly lost everything, what would you miss most? 
P.E.
What is Conditioning coach and Conditioning activities..? 
English Writing
Please bring something interesting to share with the class tomorrow. It can be anything that you have seen/heard/read recently in English (an article, a song, a new phrase, a short video, a picture of a sign you saw, etc). It needs to be appropriate of course! Do you have ...  Conclude H0 if TS is less than or equal to 1.645

Phyics
A 56 kg astronaut stands on a bathroom scale inside a rotating circular space station. The radius is 250 m and the bathroom scale reads 42 kg At what speed does the space station does the floor rotate  4.65

calculus
A running circuit is to be constructed in the shape of a rectangle with two semicircles attached at the east and west ends of the path (see figure). A picnic area will be set in the center of the circuit. If we want the total length of the circuit to be 2000 m (2km ), what ... 
calculus
A printed page is to have 1 in. margin on all sides. The page should contain 80 sq. in. of type. What dimensions of the page will minimize the area of the page while still meeting the other requirements? 
Science
A piece of lead at 100 degrees celsius has a mass of 500 grams. It is placed in a 200 grams of water at 20 degrees celsius that is contained in an aluminum caloriemeter with a mass of 400 grams. If the final temperature of lead, water and caloriemeter is 24 degrees celcius, ... 
Maths
Solve the problem  How many three digit numbers do not contain a five? Show evidence of solving the problem in a systematic way. 
Maths
Solve the problem  How many three digit numbers do not contain a five? Show evidence of solving the problem in a systematic way. 
Math
Week 1 42hours(including 4 hrs sick leave,6 hrs travel) Week2 46 hours(including 5 hrs travel) What percentage of the recorded time did the worker spend traveling  56
 1. plot 2. setting 3. characters

social studies
How are interest rates and wages similar? A. Both rise due to inflation. B. both are types of prices. C. Both relate to the cost of borrowing. D. Both are payment for work done. i feel like it is D or b? please help  Sorry. I just needed an answer quick
 bump

social studies
How are interest rates and wages similar? A. Both rise due to inflation. B. both are types of prices. C. Both relate to the cost of borrowing. D. Both are payment for work done. i feel like it is D or b?  one more, 4n + 7 + 2n = 1 n= 3?

Math
How do you simplify this expression? 5(x+10)+x 6x+50 is the answer?  I did 21 divided by 8 = 2.625

math
7x/8 = 21 i am kind of confused on this  thanks
 my teacher just asked me for the simplified expression

math
How do you simplify this expression? 12 / 3 x (8+(4)^2  6) +2 I got 8+2. Is this right?  1680
 Complete 25:35=5 :?

Math
The difference between 2 numbers is 14.When the greater number is divided by the lesser, the quotient is 2 and the remainder is 5.What are the numbers?  p=w/t
 Stop cheating for mth2021

math
**In the Figure KE is parallel to LF which is parallel to MG which is parallel to NH etc. Also DK: KL= 2:1 DL:LM = 2:1 DM: MN=2:1 etc If KE = 2 cm , calculate the length of the 10th parallel line,rounded off to one decimal place.(N.B NH is the 4th parallel line) 
Math
An Equilateral Triangle Of Side 20cm Is Inscribed In A Circle.Calculate The Distance Of A Side Of The Triangle From the Centre Of The Circle. 
Math
a jar contains 26 fluid ounces of spaghetti sauce, how many cups of spaghetti sauce do 4 jars contain? 
Chemistry
A chemist reacted 0.05 moles of sodium with water to form 50cm3 of sodium hydroxide solution. Na + H2O  NaOH + H2 (unbalanced) What mass of sodium was reacted?  Correct!
 That is correct!

geometry
What is the ratio of the area of sector AOB to the area of sector COD? 1/3,1/4,1/9,3/8  CCAB
 It's 7,000

Physics
A 25 kg box is dragged across a floor by a rope that makes an angle of 60 degrees with the horizontal. The tension in the rope is 100 N while the box is dragged 15 m. A) how much work is done by tension? B) how much work is done by gravity? 
math
A ball is launched from a slingshot. Its height, h(x), can be represented by a quadratic function in terms of time, x, in seconds. After 1 second, the ball is 148 feet in the air, after 2 seconds the ball is 272 feet in the air. Find the height in feet of the ball after 6 ...  jjj

math
The large red equilateral triangle has sides of 8x units. The midpoints of the red triangle are joined to form the blue triangle. The midpoints of the blue triangle ate joined to form the green triangle. The process of joining midpoints to form new triangles continues ... 
math
The large red equilateral triangle has sides of 8x units. The midpoints of the red triangle are joined to form the blue triangle. The midpoints of the blue triangle ate joined to form the green triangle. The process of joining midpoints to form new triangles continues ...  !@#$%^&
 67

Math
Construct the 2 x 3 matrix B=[b_ij] where b_ij= (1)^i+j(i^22j)  Thanks :)

Math
Express log z+ 2 log y  3log x as a single logarithm.  (before he ate dinner) AND (in the morning)

ENGLISH
1. Joseph ate dessert before he ate dinner. > Are the capitalized words a phrase or a clause? Answer: Clause. 2. She left early in the morning. > Are the capitalized words a phrase or a clause? Answer: Phase. IS THIS CORRECT?