Tuesday
October 21, 2014

Posts by Nikki


Total # Posts: 577

math
frank cut a pie into 10 equal slices there are only 3 slices left what is the measure of the angle for the 3 slices that are left?
March 19, 2013

calculus
Let f be the function be defined by f(x)=5^((2x^2)-1)^(1/2) A) is f an even or odd function? Justify answer. B) find the domain of f. C) find the range of f. D) find f'(x)
March 14, 2013

Calculus
Let f be the function be defined by f(x)=5^((2x^2)-1)^(1/2) A) is f an even or odd function? Justify answer. B) find the domain of f. C) find the range of f. D) find f'(x)
March 14, 2013

arithmetic
the $225 per decameter. if you multiply the 24.75 timesten you get Way high than $225
February 15, 2013

arithmetic
The city counsel is trying to buy fencing the size of 740 meters. One fencing company is offering $24.75 per meter another is offering $225 per decameter. Which is the better buy???
February 15, 2013

Math
An open box is made from a square piece of metal by cutting out a 4 inch square from each corner and turning up the sides. Find the area of the original square if the box is to contain: A) 16 cubic inches And B) 400 cubic inches
January 30, 2013

math
Suppose you roll a fair die 18 times. (a) What is the sample space? (b) What is the probability that each number from 1 to 6 appears exactly thrice? (c) What is the probability that the number 1 appears exactly twice, 3 appears exactly four times, and 5 appears exactly six times?
January 27, 2013

math exam prep question
determine the quadratic equation with x-3 sqrt of 2 and -3 sqrt 2 in the form ax^2+bx+c=0?? How do you do this I do not know how to..please explain Thanks!
January 22, 2013

math exam prep question
no simplify sorry forgot to specify..
January 22, 2013

math exam prep question
how do u do 9x^2-30xy+2y^2 ?
January 22, 2013

math exam prep question
Simplify: 1/4a+2 + 4/6a+3 I got 14/6(2a+1) but I don't think it is right
January 22, 2013

math exam prep question
oh yeah sorry for some reason i did 8+6/6(2a+1)...it should have been 11 thanks for the help:)
January 22, 2013

math exam prep question
Simplify: 1/4a+2 + 4/6a+3 I got 14/6(2a+1) but I don't think it is right
January 22, 2013

Computer
What is the standard configuration for a newly purchased hard drive? A. Master-drive B. Single-drive C. Slave-drive D. Primary-drive
January 19, 2013

Computer
What is the name of the Windows Utility that you use to format drives? A. System Manager B. System Drive Manager. C. Disk Management D. Windows Drive Administrator
January 18, 2013

Computer
For which operating system is exFAT NOT an option when formatting a partition? A. Windows XP with SP3 B. Windows XP with SP2 C. Vista with SP1 D. Vista
January 18, 2013

Computer
You have an empty 64 bit PCI slot in your computer. What can you install in it? A. A single 64 bit adapter card B. A single 32 or 64 bit adapter card C. A single 64 bit adapter card or two 32 bit adapter cards D. A single 64 bit adapter and an 8 bit adapter
January 18, 2013

Computer
My Guess is B
January 10, 2013

Computer
Your computer is running very slow. The LED light for the hard drive blinks nearly continually, indicating that the hard drive is spinning even when data is not being saved or read from the hard drive. Based on this scenario, what is probably causing the slowness of the ...
January 10, 2013

Computer
Your computer is running a lot of services and applications when you log on that you never use. What implications can this mean for your computer? A. Unused services and applications take up valuable hard drive space. B. Your computer uses more power than it needs to. C. 32 ...
January 10, 2013

Last Question Plz helppp:((im soo sleepy!!:(
1)The reaction between solid sodium and iron(III) oxide, Fe2O3(s), is one in a series of reactions that occurs when an automobile air bag inflates. 6Na(s) + Fe2O3(s) -> 3Na2o(s) + 2Fe(s) If 100.0 g of iron(III) oxide are used in this reaction, what mass of solid iron will ...
December 19, 2012

Chemistry
1)The following balanced chemical equation represents the reaction of calcium carbonate CaCO3 (s), with hydrochloric acid : CaCo3(s) + 2HCl (aq) -> CaCl2(aq) + CO2(g) + H2O(l) If 155 g of calcium carbonate reacts with 245 g of hydrochloric acid, what mass of calcium ...
December 19, 2012

Math
Its 16-9 which is 7 and therefore it is 7/24:P so simple..
December 19, 2012

Algebra
Two functions f and g are defined by f:x = x^2 + 3 g:x = 2x+1 Find the function fg
December 19, 2012

Algebra
Two functions f and g are defined by f:x = 25 /(3x-2) g:x = x^2 Find the composite function
December 19, 2012

physics
An object is placed 5 cm in front of a concave lens of focal length 7 cm. Find the image location by drawing a ray tracing diagram to scale.
December 9, 2012

Grammar
Identify the parts of speech the this sentence. When they raise me to a high position, then ill get a raise
December 7, 2012

math
There are 12 slices of pie if jerry ate 1/3 of the pie, how many slices did he eat?
December 6, 2012

chemistry
A 93L sample of dry air is cooled from 145 to-22 under constant pressure.What is the final volume?
November 25, 2012

organic chemistry
What is the major product of the nitration reaction of 2-methylacetanilide? Why is it the major product?
November 18, 2012

Chemistry
A 0.08425 g sample of gas occupies 10.0-mL at 292.5 K and 1.10 atm. Upon further analysis, the compound is found to be 13.068% C and 86.932% Br. What is the molecular formula of the compound? Identify the geometry around each carbon atom. a)trigonal pyramidal b)bent c)...
November 17, 2012

Business Research
A data processing analyst for a research supplier finds that a preliminary computer run of survey results show that consumers love a client’s new product. The employee buys a large block of the client’s stock. Discuss the ethical ramifications of this decision. Which...
November 10, 2012

math
4 3/4 + 3 1/2 ADD AND WRITE IN SIMPLEST FORM
November 5, 2012

Factor Theorem Math
Use the Factor Theorem to determine the rational zeros of this function. Then use other methods to determine any other zero of this function. 4x^4-x^3-11x^2-2x+6 (I already did p/q and found a total of 16 possible zeros. I synthetic divide all of them and none gave me a root ...
October 28, 2012

physics
Did you ever figure it out?? I am doing something VERY similar now
October 23, 2012

Psychology
Class x drugs have an extremely high risk of causing defects to the fetus during pregnancy, therefore the answer would be B.
October 16, 2012

Trig
Steve, you are the best! Thanks for your patience.
October 16, 2012

Trig
okay so, d^2=282.24+501.76-752.64(cos45°) =22.1749sqrt =4.7090 Not the same answer you got.
October 16, 2012

Trig
H=Home P=Pitcher S=Second Base HP=16.8 HF=22.4 Find distance PF d^2=16.8^2+22.4^2-2(16.8)(22.4)cos H d^2=282.24+501.76-752.64cos d^2=31.36cosH Stuck from here....
October 16, 2012

Trig
They aren't explained in a way that I can understand them. Can you explain more clearly?
October 16, 2012

Trig
A baseball diamond is a square with sides 22.4m The pitchers mound is 16.8m from home plate on the line joining home plate and second base. How far is the pitchers mound from first base?
October 16, 2012

Math
A baseball diamond is a square with sides 22.4m. The pitchers mound is 16.8m from home plate on the line joining home plate and second base. How far is the pitchers mound from first base? Step by step please.
October 15, 2012

Trig
Lol! Apparently I have been working on this question too long! Thanks!
October 15, 2012

Trig
Yes I understand the diagram points and can see how you came up with this now but am having trouble coming up with an answer for xtan6°=(1.1-x)tan13° I know this is basic but I am having trouble isolating the x! I am getting x=tan13°-tan6°/1.1 which is giving ...
October 15, 2012

Trig
Can you show me the steps you used to isolate x?
October 15, 2012

Trig
From an observation tower that overlooks a runway, the angles of depression of point A, on one side of the runway, and point B, on the oppisite side of the runway are 6 degrees and 13 degreess respectivel. The points and the tower are in the same vertical plane and the ...
October 15, 2012

Math
A 5.0m ladder is leaning 3.1m up the wall. What is the angle the ladder makes with the ground? Would this be..... sinA=3.1/5.0 sinA=0.62 sin^-1=38degrees?
October 6, 2012

math
Mrs. rhombus has to make supply bags for a math lesson. She has 60 folders, 45 pairs of scissors, and 30 rulers. What is the greatest number of supply bags that Mrs. Rhombus can use to divide the school supplies into equal groups?
October 3, 2012

chemistry
calculate the volume in milliliters of a 5.55g sample of solid with density of 3.67g/ml
September 26, 2012

math 116
Find value for m and b so that y=mx+b models the monthly cost of driving the car x miles. Car costs $156.10 and $0.25 per mile
September 24, 2012

PHYSICS
7227.1
September 6, 2012

Math, Pre Calc
Given that (+-2) and i are the roots of a 4th degree polynomical, find the equation. Please help! Thank you:)
September 5, 2012

sculpture
I have Art III Ceramics. I need a concentration piece to make at least 5 sculptures. I decided on pandoras box. the 5 emotions that were chosen were hope, sickness, vanity, jealousy, and lazyness. I know this is an uncreative way to get a concentration idea but i have been ...
September 3, 2012

POl
An inactive substance or simulated medical procedure is called a
September 2, 2012

economics
what are some mesoeconomics variables/indicators
August 25, 2012

Math
No
August 20, 2012

College Algebra
R(x)=x^3-125/x^2-49
August 7, 2012

econmics
The %increase in price= (7-5)/5x100= 40% The %decrease in quantity=(25-15)/25 x 100= 40% Elasticity=40/40=1,unit elasticity.
July 20, 2012

Trigonometry
Would it be the same answer as the other problem?
July 15, 2012

Trigonometry
Use the half-angle identities to find all solutions on the interval [0,2pi) for the equation sin^2(x) = cos^2(x/2)
July 15, 2012

Trigonometry
Use the half-angle identities to find all solutions on the interval [0,2pi) for the equation cos^2(x) = sin^2(x/2)
July 15, 2012

Trigonometry
Show algebraically how to confirm that cos2x=cos^2x-sin^2x using the sum and difference identities
July 15, 2012

physics
if the swinging pendulum (pirate ship) swings on an arc with a radius of 10 meters, how much time does it take to swing through 5 swings?
May 28, 2012

Math
It cost your office $620 to mail 500 flyers. How much did it cost to mail each flyer?
May 27, 2012

chemistry
Na + H2O ¨ NaOH + H2 How many moles of H2 would be formed from 30 grams of Na in the following (UNBALANCED) equation?
May 17, 2012

graphs and angles
a survey about students government program at a school found that 120 students wanted an after school program and 240 students wanted durning school and 40 students wanted none, If a circle graph is made from this data, what would be the measure of the central angle for the ...
April 25, 2012

Early Childhood Literacy
Erikson's work identified:
April 24, 2012

Algebra
Haha its ok. Thanks for the help.
April 16, 2012

Algebra
Ay, my bad. Thanks :) and you mean x=5 or x=-4 right?
April 16, 2012

Algebra
Wouldn't it be x^2-20=4 since (1/4)•4x= (4x/4)? So that means it would be x^2-24=0, right? Where would I go from there?
April 16, 2012

Algebra
Solve for x: (x/4)-(5/x)=(1/4)
April 16, 2012

Psychology
What are the primary biological foundation of psychology linked to behavior?
March 21, 2012

Statistics
(53*8)+(21*6)+(26*4)= 654 654/100= 6.54 letters
March 20, 2012

Physic
A point charge q1=-8 is located at the orgin of a rectangular coordinate system. A second charge q2=6nC is located at a distance of 0.2m from the orgin on the positive x-axis, and a third charge q3=12nC is located at a distance of 0.2m on the positive y-axis. Find the ...
March 14, 2012

physics
The electric field at a distance of 0.4m from a point charge q is 20.0N/C. Find the charge “q”. Help it seems simple but I keep getting a huge number
March 14, 2012

Chemistry
3.54*10^7 g of TiCl4(g) are reacted completely. If 7.91*10^6 g of Ti(s) is actually obtained, calculate the percent yield.
March 11, 2012

physics
a weightlifter lifts a set of weights a vertical distance of 2.36. if a constant net force of 335 N is exerted on the weights how much net work is done on the weights?
March 9, 2012

Physics
A car travels the same distance at constant speed around two curves, one with twice the radius of curvature of the other. For which of these curves is the change of the velocity of the car greater? Explain.
March 8, 2012

Math
Jesse has 2 1/3 pints of soup.He makes dinner for his friends and serves 1/2 of his soup.How much did he serve?
March 6, 2012

Clac- math
a 20 foot ladder leaning up against a vertical wall begins to slip. the base of the ladder makes an acute angle with the floor. when the angle equals 60 degrees the angle is decreasing at 0.1 radians/second. find the rate at which the height of th upper end of the ladder is ...
March 1, 2012

Chemistry
What are the various uses of radioactivity in healthcare? What are the future trends in healthcare with respect to the use of radioactivity?
February 19, 2012

HELP12
I think it's B
February 19, 2012

HELP12
D is not correct.
February 19, 2012

HELP 7
NOT!
February 19, 2012

ENG
No this answer is correct I have the definition written down and word for word verbatim it says Connotative Definition- Made up of the set of associations implied by a word in addition to it's literal meaning.
February 18, 2012

Math
Please someone help!
February 8, 2012

Math
Billy is standing 80 feet from the base of a building. The angle of elevation to the top of the building is 35 degrees. If the distance from Billy's eyes to the ground is five feet, how tall is the building?
February 8, 2012

Algebra 1
The x intercept is 9, and the y intercept is 9. Just plug in 0 for x to get y and 0 for y to get x!
February 8, 2012

math
the sale of drawing is 1/4 in. = 12 ft. find the atual measurement
February 7, 2012

Chemistry
A robust first grader goes for swimming lessons three times a week, and he enjoys it thoroughly. During the first week of December, he develops an upper respiratory infection, starts coughing continuously, and has a high fever of 39°C. His condition remains the same even ...
January 29, 2012

Stats
You are allowed to choose four whole numbers from 1 to 10 (including 1 and 10). You can only choose each number once though. Which of the following statements is FALSE? A. The numbers 4, 5, 6, and 7 have the smallest possible standard deviation. B. The numbers 1, 2, 3, and 4 ...
January 20, 2012

geometry
To the nearest tenth, what's the distance between the points k(7,-10) and M (1,4)
January 16, 2012

math
I figured these out, thanks anyway. they are: 2 42 and 62 81 and 144
December 8, 2011

math
I am a prime number. I am less than 40. I am 1 more than a multiple of 5. What number am I? I am a 2 digit number. My ones digit is 2. My tens digit is even. I am between 30 and 70. what number am i? I think either 42 or 62. I am a square number. I am more than 50. My digits ...
December 8, 2011

math
25, I figured it out.
December 8, 2011

math
i am odd, my digits add to 7, i am a multiple of 5. what number am i?
December 8, 2011

math
christine went shopping and bought each of her six nephews a gift, either a video costing $14.95 or a Cd costing 16.88. she spent 91.63 on gifts how many videos and how many cd's did she buy
December 6, 2011

Math
two forest fire stations,P and Q are 20.0 km apart, A ranger at station Q sees a fire 15.0 km away, if the angle between line PQ and the line form P to the fire is 25 , how far to the nearest tenth of a kilometre is statin P from the fire
November 26, 2011

Math
state the primary trigonometric ratio associated with angle a p(-2,5)
November 26, 2011

health
5 to 15 minutes
November 20, 2011

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