Friday
March 27, 2015

Posts by Kevin


Total # Posts: 994

English
Can you find the word passage which matches the meaning given. (a) knocked about, pushed off balance (b) another choice
March 25, 2015

Physics
A 130kg mail bag hangs by a vertical rope 3.9m long. A postal worker then displaces the bag to a position 2.2m sideways from its original position, always keeping the rope taut.
March 21, 2015

Physics
A 130kg mail bag hangs by a vertical rope 3.9m long. A postal worker then displaces the bag to a position 2.2m sideways from its original position, always keeping the rope taut.
March 21, 2015

Math
Hi! I need help with this question. Thanks! Directions: Try to find the number of solutions for the following system of equations then determine if it is Dependent, Inconsistent or Consistent. -3x-2y=6 x=-2-2/3y
March 18, 2015

Spanish
I'm doing a project. Thats my title which one would be better "Mi futuro hogar" or "Mi futura casa"
March 14, 2015

Spanish
ok thank you
March 14, 2015

Spanish
Hello how do I say "my future house" in spanish. I didnt want to use google translate because of the grammar.
March 14, 2015

physics
A chair of mass 14.0kg is sitting on the horizontal floor; the floor is not frictionless. You push on the chair with a force F = 40.0N that is directed at an angle of 43.0∘ below the horizontal and the chair slides along the floor.
March 14, 2015

Math
A bus can cover a distance of 6 miles in 1 gallon of gas. The cost of gas is $4 per gallon. What will be the cost of gas used in driving the bus for 96 miles?
March 12, 2015

projectile motion physics
There is a minimum angle above the ground such that if the ball is launched below this angle, it can never clear the bar, no matter how fast it is kicked. What is this angle?
March 8, 2015

projectile motion physics
Imagine the ball on the left is given a nonzero initial speed in the horizontal direction, while the ball on the right continues to fall with zero initial velocity. What horizontal speed vx must the ball on the left start with so that it hits the ground at the same position as...
March 8, 2015

physics
wo vectors A⃗ and B⃗ have magnitude A = 3.02 and B = 3.03. Their vector product is A⃗ ×B⃗ = -5.05k^ + 2.06 i^. What is the angle between A⃗ and B⃗ ?
March 7, 2015

Physics
Kaitlin is going off to her physics class, jogging down the sidewalk at a speed of 3.30m/s . Her husband Scott suddenly realises that she left in such a hurry that she forgot her sandwich, so he runs to the window of their apartment, which is a height 35.0m above the street ...
March 7, 2015

Physics
A car comes to a bridge during a storm and finds the bridge washed out. The driver must get to the other side, so he decides to try leaping it with his car. The side the car is on is 19.5m above the river, while the opposite side is a mere 1.6m above the river. The river ...
March 7, 2015

Physics
A 7500kg rocket blasts off vertically from the launch pad with a constant upward acceleration of 2.20m/s2 and feels no appreciable air resistance. When it has reached a height of 595m , its engines suddenly fail so that the only force acting on it is now gravity. [1]What is ...
March 7, 2015

Geometry
I need some assistance, here's the question. 4. What are the values of x and y? A. x=9/4,y=3/4 B. x=9/4,y=15/4 C. x=15/5,y=5/4 D. x=3/4,y=15/4 I'm thinking it's either A or B, but I don't know for sure. Can anyone help?
February 25, 2015

Math
How many years old is a person if her age now is equal to her age in 3 years x 3, less 3 times her age 3 years ago?
February 23, 2015

Physics
In a particular crash test, an automobile of mass 1295 kg collides with a wall and bounces back off the wall. The x components of the initial and final speeds of the automobile are 25 m/s and 1.5 m/s, respectively. If the collision lasts for 0.11 s, find the magnitude of the ...
February 1, 2015

algebra
The line l_1 passes through the points (3,-3) and (-5,2). The line is the graph of the equation Ax + By = C, where A, B, and C are integers with greatest common divisor 1, and A is positive. Find A + B+ C.
January 24, 2015

Math
Where did you get the two from in (3/2)?
January 10, 2015

Math
you know that 8x = 5y you know that 3y=14z since 5 = (5/3)*3, 5y = (5/3)*(3y) so, 5y = (5/3)(3y) = (5/3)(14z) = (70/3)z now you have 5y, which is the same as 8x. You want 12x. since 12 = (3/2)*8, 12x = (3/2)*8x. 12x = (3/2)(8x) = (3/2)(5y) = (3/2)(70/3)z = (70/2)z = 35z Can ...
January 10, 2015

math
If ten crates arrive at the receiving dock, and each crate contains 7 boxes of decorative vases with 12 vases per box; how many vases are in each crate?*
December 18, 2014

Math
5) A car manufacturer has manufacturing plants in 3 major cities. Below are the daily amounts of cars produced per plant for 3 different model types. (matrix A) Model X Model Y Model Z Plant A 12 10 0 Plant B 4 4 20 Plant C 8 9 12 Due to wage increases, the April profits are ...
December 12, 2014

Math
The relative value of currencies fluctuates every day. When this problem was written, one Netherland Antillean Guilder (Used on the Caribbean island of CuraÇao) was worth .558659 US dollar. a. Find a function that gives the U.S. dollar value f(x), of x Netherland ...
December 12, 2014

Math
2) A car dealership advertises a 15% discount on all its new cars. In addition, the manufacturer offers a $1000 rebate on the purchase of a new car. Let x represent the sticker price of the car. a. Suppose only the 15% discount applies. Find a function f that models the ...
December 12, 2014

Physic
thank you so much !
December 11, 2014

Physic
A grenade that is falling vertically explodes into two equal fragments when it is at a height of 2000 m and has a downward velocity of 60 m/s. Immediately after the explosion one of the fragments is moving downward at 80 m/s. Find the position of the second fragment and the ...
December 11, 2014

algebra
ᕦ( ͡° ͜ʖ ͡°)ᕤ
December 5, 2014

Math
) If you are standing near the edge of the top of a 200 ft. building and throw a ball vertically upward it will be modeled by the function 𝑠(𝑡) = −16𝑡2 + 64𝑡 + 200 where s(t) is the balls height above ground in feet and t is seconds after ...
December 4, 2014

Math
A man is running around a circular track that is 200m in circumference. An observer uses a stopwatch to record the runner’s time at the end of each lap, obtaining the data in the tale below. a. What was the man’s average speed (rate) between 68 s and 152 s? b. What ...
December 4, 2014

physics
A glass windowpane in a home is 0.62 cm thick and has dimensions of 1.30 m × 2.22 m. On a certain day, the indoor temperature is 22°C and the outdoor temperature is 0°C. (Assume the thermal conductivity of the glass is 0.8 J/s · m · °C.) What is...
December 4, 2014

Visual Basic
debugging exercise: Private Sub btnItemNumber_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnItemNumber.Click Dim decCost As Decimal Dim intCount As Decimal decCost = Convert.ToDecimal(txtCost.Text) Inventory(decCost, intCount) End Sub Private Sub...
December 3, 2014

Math
Diffrentiate implicitly with respect to x. Solve for y' 3xy - 2x^2 + 5y^2 =7
November 29, 2014

earth science
Which of the following statement is False: A.Cinder cones are built from ejected lava fragments and are usually less than 300 meters high B.Calderas are large collapsed depressions having more or less circular form C.Most volcanoes are fed magma through short conduits called ...
October 29, 2014

Math
1) An aerobics class is being offered at the ABC body gym. Nonmembers pay $4 per class while member pay a monthly fee of $10 plus $2 per class. a. Create a linear system to represent the two options. b. At how many classes will the cost be the same? What is that cost? c. When ...
October 13, 2014

Math
Find three pairs of numbers for which the LCM (least common multiple) is the product of the two numbers; The pairs and LCMs are: 8 and 12: 24; 3 and 15: 15; 7 and 11: 77; 9 and 10: 90; 24 and 36: 72; 20 and 25: 100; 14 and 42: 42; 30 and 12: 60
September 17, 2014

math
thank you
September 17, 2014

math
(c+2)^2 -1 factor completely (c+2)(c+2) -1 i dont know what to do next. Can you help me please thank you
September 17, 2014

math
The differnce of two numbers is 2 the difference of their squares is 20 find the numbers
September 15, 2014

Math
12 cards are drawn with replacement from an ordinary deck of 52 cards. What is the probability that 4 queens of hearts, 4 aces of spades, and 4 kings of clubs are drawn?
September 14, 2014

algebra
thank you very much
September 8, 2014

algebra
how need help with this question subtract 7y^2 -3y from 4y^2 + 2y isthe answer 3y^2 - 5y thank you
September 8, 2014

MATH
what is th lomgest multiplication combination you found for each of these numbers
September 8, 2014

Root Words
Which of the following root words means “more than one”? A. Junct- B. Ambi- C. Ject- D. Terr- B?
September 3, 2014

Definitions
C?
September 1, 2014

Definitions
Speculation A. Discovery B. Evidence C. Hypothesize D. Analysis D?
September 1, 2014

Definitions
i think b . subculture
September 1, 2014

Definitions
A smaller group of people within a larger group A. Culture B. subculture C. Demography D. Population None of the definitions say anything like the question please help
September 1, 2014

Definitions
People joined together in business. A. Proprietorship B. Ownership C. Partnership D. Investment I got C
September 1, 2014

vocabulary
Ok. Its B
August 29, 2014

vocabulary
Denotative and Connotative A. Synonyms B. Antonyms C. Neither I think A?
August 29, 2014

health
thanks again
August 27, 2014

health
What are common causes of short-term stress? A. Too much to do in not enough time B. Lots of little problems in the same day C. Getting lost D. All of the above D?
August 27, 2014

health
Thankyou :)
August 26, 2014

health
Then A?
August 26, 2014

health
How do you lose weight? A. By using up more calories than you take in B. By using up more money on diet programs and pills C. By using up less energy than you take in D. By using up less calories than you take in D?
August 26, 2014

health
Is it b?
August 19, 2014

Math
For a given right, side a = 76.4 feet and side b = 39.3, what is the measure of angle b to the nearest degree
August 16, 2014

physics
A 900kg car strikes a huge spring at a speed of 22m/s, compressing the spring 4.0m How long is the car in contact with the spring before it bounces off in the opposite direction? I found the spring constant to be 27225, which i know is right, but am having trouble with this ...
July 29, 2014

physics
A soccer ball travelling at 15 m/s [E] bounces off of a goal post and ends up moving 12 m/s [S 30¡Æ E]. If the ball was in contact with the post for 0.10 seconds, calculate the acceleration of the ball.
June 27, 2014

Calculus
find the area of the region inside the limacon r= 8 + 4sin(theta) HElp!! if you can show steps, i'd be greatful
June 2, 2014

math
i think its b
May 28, 2014

English III
If the writer paraphrases an opinion that she has read rather than reached independently, she is not required to cite the source. True or False?
May 27, 2014

sci207
How would the "weather" be affected if the water was at a decreased temperature?
May 26, 2014

Algbera
which angle is coterminal with an angle measuring 130 degrees? 230 130 -490 490 none of these
May 21, 2014

math
In which quadrant does the terminal side of the angle with measure -245 degree lie? Quadrant I Quadrant IV Quadrant III Quadrant II None
May 21, 2014

english
I need to write a short couplet about growing up it needs to start with "IF"
May 14, 2014

personal finance
Bryan earns $6.25 per hour plus 1.75% commission on all goods sold. One week he worked 37 hours and sold $6,500 worth of goods. What were his weekly earnings?
May 11, 2014

calculus
Find the interval of convergence of the series. ∑(sinx/10)^n
May 7, 2014

calculus help
find the derivative of the function. integral cos(x) to sin(x) ((ln(8+3v))dv)
May 1, 2014

Calculus Help
Find the values of c such that the area of the region bounded by the parabolas y = 4x^2 − c^2 and y = c^2 − 4x^2 is 256/3. (Enter your answers as a comma-separated list.)
May 1, 2014

Statistics
Carol has data on the causes of violent outbursts among kindergarten children. She used a "shot-gun" approach to hypothesis testing by asking the computer to produce p-values for 300 quickly chosen hypothesis tests. She shared her glee with fellow researchers, noting...
May 1, 2014

Statistics
Thanks - that is what I picked.
May 1, 2014

Statistics
A 95% confidence level for the difference between u1 and u2 runs from -2 to +6. From this we can infer that a. u1 is probably greater than u2. b. u1 is probably less than u2. c. there may be no difference at all between u1 and u2. d. the difference between u1 and u2 is not ...
May 1, 2014

Statistics
A 95% confidence level for the difference between u1 and u2 runs from -2 to +6. From this we can infer that a. u1 is probably greater than u2. b. u1 is probably less than u2. c. there may be no difference at all between u1 and u2. d. the difference between u1 and u2 is not ...
April 30, 2014

Statistics
Carol has data on the causes of violent outbursts among kindergarten children. She used a "shot-gun" approach to hypothesis testing by asking the computer to produce p-values for 300 quickly chosen hypothesis tests. She shared her glee with fellow researchers, noting...
April 30, 2014

Statistics
Tukey's HSD test is used a. prior to performing a one-way ANOVA. b. to determine the amount of difference between group means. c. to determine whether the overall difference among groups means is significant. d. to locate "true" differences after a significant F
April 30, 2014

Statistics
Given: The difference between two dependent means is statistically significant. The reason behind this outcome can be difficult to determine when a. population standard deviations are estimated from samples. b. sample size is large. c. a large value of t is obtained. d. ...
April 30, 2014

Statistics
Tukey's HSD test is used a. prior to performing a one-way ANOVA. b. to determine the amount of difference between group means. c. to determine whether the overall difference among groups means is significant. d. to locate "true" differences after a significant F
April 29, 2014

Statistics
Given: The difference between two dependent means is statistically significant. The reason behind this outcome can be difficult to determine when a. population standard deviations are estimated from samples. b. sample size is large. c. a large value of t is obtained. d. ...
April 29, 2014

Math Help!
-If one fish is twice as long as another,how do their weights compare? -If one fish is as heavy as another, how do their lengths compare? L- 31,33,35,37,39 W- 250,308,363,420,520
April 29, 2014

Statistics
In order to critical values of t to be precisely correct for testing Ho: u1-u2=0 using small independent samples, we must assume a. ó1 = ó2 b. normality of populations c. u1 = u2 d. all of the above.
April 29, 2014

Statistics
In one-way ANOVA involving three groups, the alternative hypothesis would be considered correct if, in the population, a. all means were equal. b. two means are equal but the third is different. c. all three means have different values. d. either (b) or (c) above is true.
April 29, 2014

Statistics
Professor Casey performs a t test of Ho: u1 - u2=0 using a-.01 and finds a significant difference between Xmean1 and Xmean2. From this we can infer. a. a large difference between u1 and u2. b. an important difference betwee u1 and u2. c. u1 and u2 to be unequal. d. all of the ...
April 29, 2014

Math-Help
A manufacturer has determined that pro t P (in dollars) is a quadratic function of dollars per month a spent on advertising. The relationship is given by p=1+50a-0.1a^2 if a is at most 500 dollars per month -How much should be spent on advertising if pro t is to be a maximum...
April 28, 2014

Math-Help
A rock is tossed straight up into the air. The height h (in feet) t seconds after it is tossed is given by the function: h(t)=-16t^2+100.4t+5.1 (a) Make a table of values for 0 to 10 seconds. (b) Graph the function. (c) What is the initial height of the rock? (d) When did the ...
April 28, 2014

College Chemistry
If 3.00 moles of NaCl were mixed with 0.9 L of 0.5 M of AgNO3, how many moles of solid would form? Include the formula for the solid.
April 25, 2014

Statistics
Prof. C is studying a population of the elementary school pupils in a school district with data on all its children. Another prof. suggests he calculate a confidence interval to estimate the mean age of the children. Prof C responds that it is not necessary. Explain why Prof. ...
April 23, 2014

Stats
Of 43 bank customers depositing a check, 18 received some cash back. (a) Construct a 90 percent confidence interval for the proportion of all depositors who ask for cash back. (b) Check the normality assumption.
April 18, 2014

Stats
Find the 95 percent range for the sample mean, assuming that each sample is from a normal population. a. ì = 200, ó = 12, n = 36 b. ì = 1,000, ó = 15, n = 9 c. ì = 50, ó = 1, n = 25
April 18, 2014

Geometry
so you'd take sin or 21 and then multiply that by 3.5, to get h, right? I did that and I got 1.25 when rounded. Is that right?
March 24, 2014

Geometry
A fighter plane observes a target on the ground with an angle of depression of 21 degrees. The target is 3.5 miles away along a direct line of sight. How high is the fighter plane? Round to hundredths. Please help!
March 24, 2014

math
Five friends each ate 2/12 of a pizza .What fraction of the pizza Is left?
March 24, 2014

math
There are 3 earthworms .Their length are 6 1/4 inches, 4 1/4 inches and 5 3/8 inches. What is the total length of the three earthworms.
March 24, 2014

physics
106984.8
March 23, 2014

PRACTICAL ENGLISH PROCTORED EXAM
In which of the following sentences is the verb in the active voice? A. The telephone bill was paid yesterday. B. The mother called her son for lunch. C. The boy was called by his mother. D. We were told that Jim is ill.
March 4, 2014

C++ Programming
create a class called DataSet. This class will have a default constructor that is empty, but an overloaded constructor that takes an integer argument and creates a vector with that many random numbers in it. For example, if I created: DataSet d1 = new DataSet(500); ...it would...
February 27, 2014

Microeconomics
Suppose that the price of product X rises by 20 percent and the quantity supplied of X increases by 15 percent. The coefficient of price elasticity of supply for good X is?
February 26, 2014

math
a team won 60% of the games they played. the lost 42 games. how many games did they win?
February 24, 2014

science
Which area in the United States has the highest average number of thunderstorms per year? A. Southeastern B. Northwestern C. Southwestern D. Mid-Atlantic
February 19, 2014

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