Thursday
December 18, 2014

Posts by Alyssa


Total # Posts: 577

algebra
Use the following situation to answer the next four questions. The formula for these questions came from the police department. They use this formula to determine the speed at which the car was going when the driver applied the brakes, by measuring the distance of the skid ...
March 3, 2012

math
Use the following situation to answer the next four questions. The formula for these questions came from the police department. They use this formula to determine the speed at which the car was going when the driver applied the brakes, by measuring the distance of the skid ...
March 3, 2012

math
Use your graphing calculator to find how many seconds before the projectile hits the ground. Let y1 = −16t2 + 800t, or factor and solve for t algebraically
March 1, 2012

math
The length of a rectangle is 3 inches more than its width. If the area of the rectangle is 180 square inches, write an equation for the above situation
March 1, 2012

math
In a large city league, the boys' baseball teams hold a tournament. If there are 40 teams in the league and half of the teams are eliminated in each round of games, how many teams are left after 3 rounds?
March 1, 2012

Math
Divide 186 marbles between DON and ANDRE so that DON gets twice as many as ANDRE.:(
February 26, 2012

Chemistry
Cocaine is a non-electrolyte that has a molecular weight of 303.4 g/mole. How many grams must be dissolved in 25.0 mL of Chloroform (density = 1.484 g/mL) to raise its boiling point to 65.5 Celsius? The boiling point of pure Chloroform is 61.2 Celsius. Kb Chloroform = 3.62 ...
February 26, 2012

calculus
the area of the first quadrant bounded by the y-axis, the line y=4-x, and the graph of y=x-cosx is approximately
February 26, 2012

chemistry
An aqueous salt solution is formed by adding 11.67 g sodium sulfate (solute) to water (solvent). What mass (in g) of water is used if the freezing point of the solution is -12.9 oF. Kf H2O = 1.86 oC/m I know to use delta T= i*Kf*m I then solve for m. But, then I'm confused...
February 26, 2012

calculus
the area of the first quadrant bounded by the y-axis, the line y=4-x, and the graph of y=x-cosx is approximately
February 26, 2012

statistics
THIS WAS MY ANSWER a)Identify the population and the sample. N (population) is ALL phones produced per day n (sample) is 40 random phones from the day’s production b) Is the population parameter in this study known or unknown? Explain. UNKNOWN - Parameter is the numerical...
February 22, 2012

statistics
A manufacturer of cell phones has decided that an assembly line will be considered to be operating satisfactorily if less than 0.02% of the phones produced per day are defective. To check the quality of a day's production, the company decides to randomly sample 40 phones ...
February 22, 2012

Chemistry
Can someone confirm the answer for this. I worked it out and got an answer of 85.5 torr. Is this right? Can someone please put the answer to this so I can check. Thanks. That would be helpful.
February 18, 2012

Com arts
In the Book FareWell to Manzanar. What chapter did momma break her dishes?
February 14, 2012

physics
A certain projectile is launched with an initial speed Vo. At its highest point its speed is Vo / 6. What was the launch angle?
February 9, 2012

PhysicsIn what direction relative to north must ca
An astronaut on the planet Zircon tosses a rock horizontally with a speed of 6.65 . The rock falls through a vertical distance of 1.50 and lands a horizontal distance of 8.90 from the astronaut. What is the acceleration of gravity on Zircon?
February 9, 2012

PhysicsIn what direction relative to north must ca
Two canoeists start paddling at the same time and head toward a small island in a lake, as shown in the figure . Canoeist 1 paddles with a speed of 1.60 at an angle of 45 north of east. Canoeist 2 starts on the opposite shore of the lake, a distance of 1.5 due east of canoeist...
February 9, 2012

Algebra
In order to solve this problem, you would have to distribute the negative (- sign) to the (x-2), making the problem x+2-x+2. The two x's would cancel out, therefore making the final answer 4.
February 6, 2012

math
The answer would be 7x+3y. The reason for this, is because you have to combine the "like" terms (8x goes with -x; -2y goes with 5y).
February 6, 2012

science
you get on the beach ball and float
January 25, 2012

math
NEVER MIND! THANK U!!!:)
January 17, 2012

math
how do u get 24
January 17, 2012

math
10z-8+2z-16=36 z=?
January 17, 2012

English
Is it "'un-acknowledged" or "unacknowledged" or neither of these and there is no such word? (I'm trying to write an essay.) Thanks!
December 13, 2011

English/Commas
Yes, I seem them now and have a better understanding. Thank you!
December 13, 2011

English/Commas
Okay, thank you! Are all of the commas placed in the correct spots?
December 13, 2011

English/Commas
Here is another try. I am not sure about number two, if it is, I added another comma in front of the name. 1. As I understand it, John Pearson, has lived in Winston Colorado, a small almost unknown tourist resort since August 10, 2002. 2. I have some roses planted, Mrs. Roper...
December 13, 2011

English/Commas
I was asked to put all the commas in the correct place for each sentence. I am unsure about some. Are these correct? Thanks 1. As I understand it, John Pearson has lived in Winston Colorado, a small almost unknown tourist resort since August 10, 2002. 2. I have some roses ...
December 13, 2011

English/Grammar
I was told to write a paragraph with less than 100 words. The paragraph below has 94 words. I will only receive points if there are NO grammar or punctuation errors. Are there any errors in my paragraph below? Thanks. The new library being constructed costs over forty million ...
December 8, 2011

Calc 3
Find the volume of the wedge-shaped region contained in the cylinder x^2 + y^2 = 1 and bounded above by the plane z = x and below by the xy-plane. The picture is a cylinder with a diagonal plane through it creating a wedge. Thanks! ;)
November 29, 2011

chemistry
Calculate the pH of an aqueous solution containing 1.6 x 10-2 M HCl, 2.0 x 10-2 M H2SO4, and 1.8 x 10-2 M HCN.
November 19, 2011

Physics
A 822 kg car accelerates from rest to 101 km/h in 1.15s. What change in momentum does the force produce?
November 16, 2011

Geometry
453
November 9, 2011

Sentences
Are my sentences correct with the following directions? (Sentences below directions) Using California as a topic, number and write one example of each of the following: 1. A completely correct simple sentence with an appositive in it. 2. A sentence with redundant language. ...
November 3, 2011

English
Thank you!
October 27, 2011

English
Thank you! I'm telling your Marge, if Carol has another party this month I will have to buy a new dress and a new pair of shoes, the kind i can also wear for other occasions. When i saw her last night she said she was too tired for another social even, another evening of ...
October 27, 2011

English
INSERTS COMMA'S AS NEEDED IN THE FOLLOWING PARAGRAPHS: I'm telllling you Marge if Carol has another party this month i will have to buy a new dress anda new pair of shoes the kind I can also wear for other occasions. WHen i saw her last night she said she was too tired...
October 27, 2011

Math
For what values of x will the angle be acute? (2x-6)degrees
October 25, 2011

Math
TriangleFGH is an obtuse triangle. The greatest angle in the triangle has a measure of (6d)degrees. What are the possible values of "d"?
October 25, 2011

Math
I think this may be right. 1,1,4,3,9,6,16,10,25,15,36,21,49,28,64,36,etc 1+2=3 3+3=6 6+4=10 10+5=15 15+6=21 21+7=28 28+8=36
October 25, 2011

Math
using the numbers 2.3.4.and 6once to make each equation correct. __+{___x___}x___=30
October 25, 2011

math
The stopping distance of a car traveling 25mph is 61.7ft, and for a car traveling 35mph it is 106ft. The stopping distance in feet can be described by the equation y=ax^2 + bx + c, where x is the speed in mph. Find the values of a and b.
October 21, 2011

Math
Yes it is reasonable because 293=290 and 44=50 and 290 - 40 _____ 250 = means rounds to
October 10, 2011

math
use the given advertisement to determine the missing part in each ratio. Write the two unit rates. yogurts 4 packs equals $5.00 question: 4 yogurts equals $5.00 total = 1 yogurt equals $1.25 each = what amount can you get for $1.00
October 6, 2011

math
Use the givem advertisement to determine the missing part in each ratio. write the two unit rates. yogurt 4 packs/$5.00 =4 yogurts/$5.00=1 yogurt/?=?/$1.00
October 6, 2011

chemistry
A solid substance P is soluble in water (1g/ 100mL) at 25°C and 10g/ 100mL of water at 100°C. You are given a sample that contains 10g of P and 2g of impurity G. Describe the procedure to purify P if G is insoluble in water.
October 6, 2011

chemistry
sorry, i actually posted it by accident. thank you for your help
October 6, 2011

chemistry
A solid substance P is soluble in water (1g/ 100mL) at 25°C and 10g/ 100mL of water at 100°C. You are given a sample that contains 10g of P and 2g of impurity G. Describe the procedure to purify P if G is insoluble in water.
October 6, 2011

chemistry
A solid substance P is soluble in water (1g/100 mL) at 25 degrees and 10g/100mL of water at 100 degrees. You are given a sample that contains 10 g of P and 2g of impurity G. If G has the same solubility as P, describe how you could purify P.
October 6, 2011

Arrays and Expanded Algorithm
how do you 4th grade kids do arrays and an expanded algorithm math fpr homework
September 22, 2011

literary
what literacy device is used in the statement? former indonesian president suharto was sometimes referred to as a puppet master.
September 21, 2011

math HELP!!
help
September 20, 2011

math
writing numbers in standard form ex 624
September 17, 2011

Math 6
What is the expanded form using powers of 10 and using exponents of 7,375?
September 8, 2011

Math 6th grade
42.1
September 6, 2011

MAth
ONE DIRECTION
August 31, 2011

Mathematical Applications
For the life of me, I cannot understand this question! Will someoe please help me, explain to me how I can solve it, PLEASE! Q- a party supplies store recorded net sles of $423,400 for he year.The store's beginnng iventory at retail was $105,850 andits ending inventory at ...
August 28, 2011

5TH grade math
estimate each sum or differnce. 7.4 + 3.1+ 9.8 How do I do this?
August 25, 2011

Math
A box in the shape of a rectangular prism has a volume of 56 cubic inches. If the length of each side is multiplied by 2, what will be the approximate voume of the resulting box?
August 25, 2011

math
thousands
August 24, 2011

Math
coach byrd gives 7 lessons a day . how many days will it take him to give 100 lessons? please HELP!!!
August 15, 2011

math
The length of the smaller rectangle at the right is 1 inch less than twice its width. Both the dimensions of the larger rectangle are 2 inches longer than the smaller rectangle. The area of the shaded region is 86 square inches. What are the dimensions of the smaller rectangle?
August 4, 2011

Nassau
The length of the smaller rectangle at the right is 1 inch less than twice its width. Both the dimensions of the larger rectangle are 2 inches longer than the smaller rectangle. The area of the shaded region is 86 square inches. What is the area of the larger rectangle?
August 4, 2011

algebra
I don't understand how to do this problem. Please help! Find an exponential function of the form f(x) = bax that has a y-intercept of 2 and passes through the point (2, 98). For example, if the equation is f(x) = 2(7)x respond by entering the answer as 2(7)^x
May 19, 2011

math
the washing ton monument is 555ft tall. which is closest to its height? i know the answer is 180 but i do not know how to show work for it!!!HELP!!!
May 8, 2011

science
How does your body keep from being crushed from air pressure?
May 3, 2011

algebra
I need help understanding how to do these problems. Thanks! 1) Find the value(s) that would be left out of the range of f. If there is more than one value separate them by commas. Leave fractional answers in fraction form. If there are no values left out of the range respond ...
May 3, 2011

algebra
How would you go about solving this? Im totally confused. Thanks! Find the value of k such that the graph of f contains the given point. Write k as a simplified fraction if it is not a whole number. f(x) = kx^3 - 3x^2 + kx + 3; (-1, 8)
April 12, 2011

chemistry
Calculate how many grams of Cu are needed to produce 15L of NO(g). Please help
April 11, 2011

Chemistry
How many mL of Water are made from 4 moles of HNO3?
April 11, 2011

history
describe how greek philosophers were different from those that existed in other ancient civilizations. HELP!!!!!!!!!!!!!
April 10, 2011

geometry
what are the numbers??? otherwise can"t help
April 10, 2011

algebra
i need help with these problems (either a solution or how to plug them into a graphing calculator): 1) Solve by substitution or elimination 4/x + 1/y + 2/z = 4 2/x + 3/y - 1/z = 1 1/x + 1/y + 1/z = 4 2)Solve the system of equations by substitution. x^2 + y^2 = 25 x - y = 7 3) ...
April 5, 2011

Calc
-4/45 amp/sec
March 31, 2011

algebra
A=0.5h^2+2h;30ft^2
March 27, 2011

History
What was the second most big city state in greece. now the first is sparta but what is the other!!!
March 23, 2011

measurments
how long is a five k????? Is it 5 kilometers or 5 miles??
March 22, 2011

algebra
48/p=12. got 576 but not one of the answer chices(p=6,p=36,p=4,p=60 are the choices)
March 21, 2011

math
X+(X-1)+(2X-5)=24 use X for the amount of outfits Jane has. you know: -that Charlie packs 1 less than Jane (x-1) -that Loretta packs 5 less than twice Jane's (2x-5) -that you can't have more than 24. so set it equal to 24 and then solve :)
March 16, 2011

math
there are 12 inches in a foot. so divide 5040 by 12 and it should give you the correct number
March 16, 2011

math
3x+5y-6=0 solve for y
March 16, 2011

Calculus
a=-0.7650 b=-0.4809
March 11, 2011

Spainish
Would mi amigos be nostros or ustedes.
March 7, 2011

analogies
Spruce
February 23, 2011

calculus
Find the derivative of the following functions: x^7+2/(x^1/2) also (x^9-x^1/7)7^x
February 17, 2011

Calculus
Find the quadratic polynomial g(x)=ax2+bx+c which best fits the function f(x)=7x at x=0, in the sense that g(0)=f(0), and g'(0)=f'(0), and g''(0)=f''(0).
February 13, 2011

Calculus
On what intervals is the function f(x)=x^7−7x^6 both decreasing and concave up?
February 13, 2011

math
i still dont get the anwser but thanks anyway ! :)
February 10, 2011

math
5 is to 8 as 15 is to (blank) ?
February 10, 2011

Chemistry
A sample of nitrogen gas occupies 1.55 L at 27oC and 1 atm pressure. What will the volume be at -100oC and the same pressure?
February 9, 2011

Calculus
Correction: f(x)=ax^n
February 9, 2011

Calculus
Given a power function of the form f(x)=axn, with f(3)=20 and f(9)=1620, find n and a
February 9, 2011

Calculus
I meant to put x^7-7x^6
February 9, 2011

physics
The three ropes are tied to a small, very light ring. Two of the ropes are anchored to walls at right angles, and the third rope pulls as shown: F=85 N, q=54°. What is the magnitude of the tension force in the first rope
January 31, 2011

History
I need four topics to compare and contrast Machiavelli's The Prince and Castiglione's The Courtier. Thanks.
January 29, 2011

Social studies
What are the names of the nations in central america?
January 24, 2011

calculus
Thank you!
January 24, 2011

calculus
Factor completely x^3 - 5x^2 - x + 5
January 24, 2011

trig/functions
what does y=2 sin (x-pi/ .5) -1 look like on a graph with the 3 phases of the function?
January 19, 2011

calculus
Suppose that the sales at Borders bookstores went from 70 million dollars in 1989 to 415 million dollars in 1993. What is the continuous percent growth rate, per year, of sales?
January 17, 2011

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