Friday
May 6, 2016

Posts by kim

Total # Posts: 2,477

Algebra
How would you solve y=2x+3 and y=2x-2 using the substitution.
May 5, 2016

physics
How much work is required to push a crate at constant velocity with a force of 185 N across a floor a distance of 8 m? J How many calories of thermal energy are produced by the friction? cal
April 30, 2016

Geometry
Two telephone poles are 60ft. apart, and one of them is 6ft. higher than the other. If the length of the wire between the poles is 61.3 ft., how much wire was allowed for sag?.
April 30, 2016

Math
Find the area f(x)=10x/x^2+1, y=0, 0 less than or equal to x less than or equal to < 5
April 28, 2016

Ecology
Draw and label a diagram of 3 different tree pollens with magnification power.
April 21, 2016

life orientation
Hurting other peoples Disrespecting Acting against someone's rights
April 19, 2016

chemistry
if 62.3 g of zinc react with hydrophosphoric acid (H3PO4) it produces zinc (I) phosphate and hydrogen. how much zinc (I) phosphate is produced?
April 12, 2016

Math
Thank You Mrs.Sue that makes sense.
April 5, 2016

Math
Mrs. Sue how did you get that answer. Do you multiply?
April 5, 2016

Math
A candle burn for up to 4 hours. Which amount of time is equal to 4 hours?
April 5, 2016

math 4th grade no algebra
Jen is 26 years younger than her mom. Together, their ages total 50. How old is Jen? How old is her Mom? My 4th grader has not learned algebra yet, so how do we solve this?
April 4, 2016

im freaked out
It was a test to see how fast you would respond. You guys are great i love this site!
April 2, 2016

Ok so please help
Help!!
April 2, 2016

im freaked out
Where is a bugs heart located?
April 2, 2016

physics
A constant electric field is 29, 000N/C is created between two parallel plates. If the potential difference is 140, 000V , how far apart are the two plates?
March 21, 2016

physics
Two charges +q and −q are separated by a distance d. Find an expression for the potential difference VBA = VB − VA, where points A and B are both a distance b from the charges. 
March 21, 2016

DYNAMICS OF RIGID BODIES
A missile is fired with a launch velocity of 15000 ft/s at a target 1200 miles away. How long after it is fired will the target be hit? Use g = 32 ft/s.s Express your answer in seconds
March 12, 2016

Math
Fred walks a steady 3 2/3 miles per hour. The beach is 4 1/4 miles from his home. How long will it take fred to walk from his home to the beach and back home again???
March 10, 2016

MATh
31/3 = 4 6/9 which breaks down to 4 2/3 42/9 = 10 1/3 4 2/3 + 10 1/3 = 14 3/3 = 15
March 10, 2016

math
There are 24 students in a class. One student will be randomly selected as representative on the student council. if there are 9 boys and 15 girls in class, what is the probability that the representative will be a boy?
March 6, 2016

math
In the middle of the page, draw two circles an inch apart. Then draw a slight arch going up from the right edge of the left circle to the left edge of the right circle. Then draw a diagonal line out from the left edge of the left circle. This line should go up. Then draw a ...
February 29, 2016

Math
I will like help with a question on my homework.the question said in a trapezium one angle measure 85 and the other measures 95 what is the size of angle b and angle a.thank you.
February 28, 2016

Math
Can you check these? .04 is 1/8% of what number? 32 What percent of 1/8 is 3 1/2? 2800%
February 28, 2016

Math
Is this correct? What is 383 1/3% of 6/10. The answer is came to is 2 3/10 or 2.3
February 28, 2016

Math
Is this correct? .04 is 1/8% of what number? 32
February 28, 2016

algebra 1
For some real number b, the graph of the line y = 3 x + b passes through the point (7, −3). What is its y-intercept?
February 27, 2016

math
.72*2=1.44 1.44*(1/5)=0.288 1.44+0.288=1.728
February 24, 2016

Algebra
There are at least three equivalent forms for the equation of a non-vertical line. Identify three forms, and then write at least one paragraph explaining one of them.
February 24, 2016

Algebra
a)Write an equation for the line that passes through the points (0,5) and (4,12). Use any valid form of a linear line. b)You are taking a Yellow Cab in St. Paul from Como Park to the State Capitol (a 3.2 mile trek). When you get in, you are charged $6.90 for the likely amount ...
February 24, 2016

Algebra
y^2-x-4=0 a)find all x and y intercepts of the graph implied by this equation. (use an appropriate equation). b) test the graph for symmetry using algebra. (explain reasoning through algebra)
February 24, 2016

Math- Calc
Suppose f(5)=5, f′(5)=5, g(5)=8, g′(5)=−8, and H(x)=f(x)e^(g(x)). Find the derivative (dH)/(dx) x=5. H′(5)= ___
February 24, 2016

Math
A rectangular box is 4cm wide, 4cm tall, and 10cm long. What is the diameter of the smallest circular opening through which the box will fit? Round to the nearest tenth of a centimeter. Is it 4 squared plus 4 squared which equals 32 then take the square root of 32 and get 5.65...
February 23, 2016

Math- Calc
Suppose F(G(x))=x^(2) and G′(1)=5. Find F′(G(1)). F′(G(1))= ___
February 22, 2016

bio tech
Describe hpow you would prepare 2 L of a 0.5 g/ml dextrose solution?
February 21, 2016

math
You make cards and sell them for $2.50 each. It costs $1.15 to print each card. You also pay $50 for supplies. How many cards must you sell to meet the cost for making the cards (you break even)? Round up to the next whole card.
February 16, 2016

math 4th grade
The area of Charleston vegetable garden is 40 square feet.If the width of the garden is feet. What is the length of the garden?
February 16, 2016

math 4th grade
The question is correct. This is way the she gave the problem
February 16, 2016

math 4th grade
Mrs. Myers makes a flower garden outside the club house. The garden is 23 meters wide and 27 meters long. What is the area of Mrs. Myers garden?
February 16, 2016

math 4th grade
The area of Mrs. Charleston vegetables garden is 40 square feet.If the width of a garden is feet. What is the length of the garden?
February 16, 2016

Managerial Finance
Isabelle wants to save up an amount of $150,000 for her son's college education fees, coming up in 5 years. Find the amount that should be invested today if the bank pays an interest rate of 5% compounded annually
February 14, 2016

Math
A rectangle ABCD is inscribed in a circle of radius 'a'. Find the 'area of the rectangle' function and state the domain.
February 13, 2016

math
There were six hundred students to a football match the beginning of the match there one thousand students
February 11, 2016

Math- Calc
Suppose f(x)= |x^(2)+2x−63|. Where is f(x) not differentiable?
February 9, 2016

Math
Hmm, DNE was incorrect.
February 9, 2016

physics
A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 7.50 m/s at an angle of 18.0° below the horizontal. It strikes the ground 5.00 s later. (a) How far horizontally from the base of the building does the ball strike the ...
February 5, 2016

Math
Thank you so much :)
February 2, 2016

Math
Impulses in nerve fibers travel at a speed of 293 ft./sec . the distance D traveled in T seconds is given by D =293t . how long would it take an impulse to travel from the brain to the toes of a person who is 6 feet tall? My answer: 6ft=293t 6/293=0.020477 seconds?
February 2, 2016

math
Your math test has 38 questions and is worth 200. points. The test consist of multiple choice questions worth 4 points each and open ended questions worth 20 points each. How many of each type of question are there?
February 2, 2016

Math
During a sale at a store, you buy 3 sweatshirts and two pairs of sweatpants for 85.50. Later you buy 3 more sweatshirts and 4 more pairs of sweatpants for 123.00. WHat is the sale price of each sweatshirt and each pair of sweatpants? How did you get the answer what formula
February 2, 2016

Math
A student bought 3 boxes of pencils and 2 boxes of pens for $6. He then bought 2 boxes of pencils and 4 boxes of pens for $8. Find the cost of each box of pencils and each box of pens.
February 2, 2016

Introductory algebra
1/11-(-4/11) add or subtract as indicated
February 1, 2016

physics
A tourist being chased by an angry bear is running in a straight line toward his car at a speed of 3.55 m/s. The car is a distance d away. The bear is 17.1 m behind the tourist and running at 4.84 m/s. The tourist reaches the car safely. What is the maximum possible value for d?
January 31, 2016

MATH
Well. This just stinks.
January 28, 2016

MATH
Sorry, these were the right answers. :/
January 28, 2016

MATH
1. Which is equivalent to this expression? 9 – 5(4 – 2) / 3 + 5 A. -13/8 B. -1/8 C. 1 *** D. 7/4 2. There are 2 linen closets and 3 walk-in closets in each apartment in a building. The total number of closets in the building can be represented by 2n + 3n, where n ...
January 28, 2016

Math
Find ∑(j=12 up to 99) of 2j+1/(((j+1)^2)j^2)
January 14, 2016

Social Studies
Never mind people! im in 6th grade.
January 14, 2016

Social Studies
I need help with this to!!!
January 14, 2016

Physics
If a 1350 kg minivan hits a barrier with a force of 2500 n and stops in 2.8 sec, how fast must the minivan have been traveling?
January 13, 2016

math
In right triangle ABC,BC=8cm and AC=17cm.Find the value of sin C
January 13, 2016

math
what is the dimension of 100 ft diagonal?
January 12, 2016

Math
There is a box and inside it is a bunch of hats. 1/6 of the hats are red, 1/3 of the hats are blue. 3/7 of the remainder are green. There are 27 green hats. How many hats are there in total?
January 7, 2016

Math
The telephone company wants to know how many different phone numbers are available for one area code. the only restrictions are on the prefixes, you can't start with a zero and you can't use 411, 611, 811, 911, or 555. how many different phone numbers are available?
January 6, 2016

grammar
ask not what your country can do for you but ask what you can do for your country,said john f.kennedy. tell me how to change this sentence in indirect speech
January 6, 2016

Geometry
If congruent side FH is a median of△EFG,find the perimeter of △EFG
December 20, 2015

math
Michael spends three hours cleaning his house you spend equal amount of time cleaning each room you spend a half an hour cleaning its room how many rooms does he have left 3/1 ÷1/2= 3/1× 2/1 =6/1 =6
December 15, 2015

math
the total surface of a cube that is y inches on each side.what is the algevraic expression
December 9, 2015

Math please help
So is my equation correct?
December 7, 2015

Math please help
A cos wave has its first maximum at the point (pie/2, 2) and its first minimum at (5pie/2, -4) what is the equation of the function? I remember writing 3cos(1/2(x-pie/2)-1 but I'm sure that it's wrong ?
December 7, 2015

Math trigonometry
A cos wave has its first maximum at the point (pie/2, 2) and its first minimum at (5pie/2, -4) what is the equation of the function? I remember writing 3cos(1/2(x-pie/2)-1 but I'm sure that it's wrong ?
December 7, 2015

Math
A cos wave has its first maximum at the point (pie/2, 2) and its first minimum at (5pie/2, -4) what is the equation of the function? I remember writing 3cos(1/2(x-pie/2)-1 but I'm sure that it's wrong ?
December 7, 2015

Math
Determine the angles if sin= -1/2 My answers were 11pie/6 and 4pie/3 ?
December 3, 2015

physics
What thickness of Pyrex glass would have the same R−factor as a 1.0−cm thick stagnant air pocket?
December 2, 2015

Science 8
I do im in 6thgrade
November 30, 2015

Chemistry
12.903
November 27, 2015

Chemistry
and NH4H2PO4 thanks DrBob22
November 25, 2015

Chemistry
Write the formulas of the compounds formed by NH4+ with the following anions: CN-, ClO3-, SO42-, H2PO4-
November 25, 2015

physics
Calculate the Specific Gravity of an object that sinks in water if m = 21.97 g and mA = 17.40 g.
November 23, 2015

phyics
Calculate the specific gravity of a liquid given the following information: m = 59.30 g, mA = 33.78 g, mL = 43.60 g.
November 23, 2015

Pre-calculus
Initially 600 milligrams of a radioactive substance was present. After 7 hours the mass had decreased by 3%. Construct an exponential model A(t) = A0ekt for the amount remaining of the decaying substance after t hours. Find the amount remaining after 24 hours.
November 23, 2015

Statistics
The ratio of brown M&M’s in a bag is stated by the candy company to be 56%. If a random sample of 500 bags is selected, determine the probability that the sample proportion of random bags of M&M’s selected has a percentage of brown between 51% and 59% p=.56 standard ...
November 23, 2015

Chem
The solubility of calcium sulfate is1.90g of caso4 per liter of aquences solution at 25c. The formula weight of caso4 is 136.11 calculate the solubility product of caso4.
November 17, 2015

physics
If a standing wave with 10 antinodes occurs at a frequency of 44.1 Hz, at what frequency would you look for the n = 2 standing wave?
November 16, 2015

physics
If a standing wave with 10 antinodes occurs at a frequency of 44.1 Hz, at what frequency would you look for the n = 2 standing
November 16, 2015

physics
You take a set of measurements for the wavelengths and frequencies of standing waves on a string that is under a tension of 2.20 N. You use your data to create a plot of wavelength (in m) vs inverse frequency (in s) and the linear fit of your graph gives a slope of 19.0. What ...
November 16, 2015

mATH
Mr. Adams said that 10 more than 7 times his age is 9 years fewer than 5 times his age with the digits reversed. How old is Mr. Adams?
November 11, 2015

Math
If a triangl if a triangle triangle has a perimeter of three units with a row of two connecting triangles the parameters for units what is the perimeter of a row of Tronic 20 triangles triangles
November 10, 2015

math
moniques family was very impressed with their waitress. the cost of their dinner was $85. They want to leave 20% tip. how much should they leave?
November 9, 2015

algebra 1
rene needs to determine the equation of a line passing through the point (-1,7) that is parallel to y=-3x-4 a. y=-3x+7 b. y=-3x+4 c. y=3x-7 d. y=3x-4
November 9, 2015

Math
So it is the 2 that is in the thousandths place. To Ms. Sue
November 5, 2015

Math
Sorry the number is 0.8923 which digit is in the thousandths place? I believe it is the 8 but the 0 is throwing me off
November 5, 2015

Math
Which digit is in the thousandths place am confused by the 0 but I believe the 8 is in the thousandths place.
November 5, 2015

Math
was working it to fast forty-nine
November 5, 2015

Math
I have to write this number in word form 1,358,049? Is it One million, three hundred fifty-eight thousand, forty-five
November 5, 2015

math
At a school there are 704 chairs to place into 22 classes if the same number of chairs are placed in each class rooms how many chairs will be in each room? So I divided 704 by 22 and came up with 32 chairs and I correct.
November 3, 2015

math
Thank you Ms. Sue
November 3, 2015

math
3,537,000
November 3, 2015

math
3,537
November 3, 2015

math
The total land area for the United States is 3537438.98 square miles what is the value rounded to the nearest thousand square miles?
November 3, 2015

physics
To leave Nicholson, you exit via the door to the quad. The door is 40 inches wide and has a mass of 200 kg. You push the door with a perpendicular force of 52.61N exactly 0.86m away from the hinge. This generates the minimum torque, \tau_1, required to open the door. If you ...
November 2, 2015

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