Friday
May 27, 2016

Posts by Nikki

Total # Posts: 639

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

Physic
A 290-N sphere 0.20 m in radius rolls without slipping 6.0 m down a ramp that is inclined at 31° with the horizontal. What is the angular speed of the sphere at the bottom of the slope if it starts from rest?
November 10, 2011

math
If a quarter circle is placed on a square target and the radius of the quarter circle is the same as the length of a side of the square, what is the probability that a dart that hits the square does not hit the quarter circle
October 26, 2011

physics
The rear window in a car is approximately a rectangle, 1.1 m wide and 0.30 m high. The inside rearview mirror is 0.45 m from the driver's eyes, and 1.45m from the rear window. Part A What is the minimum length for the rearview mirror if the driver is to be able to see the ...
October 24, 2011

Physics
You are 1.9 m tall and stand 3.3 m from a plane mirror that extends vertically upward from the floor. On the floor 1.6 m in front of the mirror is a small table, 0.75 m high. What is the minimum height the mirror must have for you to be able to see the top of the table in the ...
October 24, 2011

geometry
Hello, Can some one check my work. I just want to make sure I answered the questions correctly. Thanks, Nikki 1) Every rhombus is a parallelogram. True 2) Every parallelogram is a rectangle. False 3) Every rectangle is a square. False 4) Every square is a rectangle. True 5) ...
October 19, 2011

Chemistry
Wow....how did I NOT see that...thanks DrBob... :-)
October 19, 2011

Chemistry
In order to make 1200mL of 2.0 M of sodium hydroxide, NaOH, from 9M NaOH, how many mL of the 9M NaOH should be used?
October 19, 2011

Math
How is scientific notation used in our daily lives?
October 13, 2011

Physics
A 2 kg ball of putty moving to the right at 3m/s has a head-on inelastic collision with a 1 kg ball of putty moving to the left at 3m/s. What is the final magnitude and direction of the velocity of the stuck together balls after the collision?
October 8, 2011

Health
Thanks! The first link was very helpful. :)
October 8, 2011

Health
What is the average teen suicide rate in the state of New York, as well as the top five reasons (in order) for teen suicides there? Thanks :)
October 8, 2011

Algebra
Can anyone else help with the problems? Much appreciated :)
October 8, 2011

Algebra
Hi. I've tried doing these problems and got long decimals that don't make sense. Please help!! 1) 13x + 6=4x-4 2) (1/2)x + 8= 3x + 2 3) (n/3) + 8=n + 1 4) 2n + 3= 2n + 3 I don't know how I would find n in this one!! 5) 5x + 2(2x-1)=-16 Thanks so much for all the ...
October 8, 2011

Algebra
Thanks! That helped a lot! But now I have more questions...please see my other algebra question, as well as my health question if you can. Thanks!!
October 8, 2011

Algebra
How do I solve these equations? I was out sick a whole week :( please no direct answers. I want to know the process as well. -a=5 4/5x=20 -2/3y=-18 -x/3=18 Please note that the / are fractions. Thank you so much in advance!! :)
October 8, 2011

math
1. The cost, in millions of dollars, to remove x % of pollution in a lake modeled by
October 2, 2011

health
Write a 350- to 700-word paper in which you discuss corrections accreditation and privatization. Address the following questions: • What is corrections accreditation? How does corrections accreditation affect the professional development of corrections officers? How can ...
October 2, 2011

physics
A car travelling at a constant speed of 136 km/hr passes a tropper hidden behind a billboard. One second after the speeding car passes the billboard, the tropper sets in a chase after the car wit ha constant acceleration of 3.8 m/s^2. How far does the trooper travel before he ...
September 29, 2011

algebra
Joe has to add 2.9104 g of silver
September 27, 2011

planetary science
If I'm standing on the sun can I still see the phases of the moon
September 26, 2011

criminal juctice 230
I have been trying to write this out the best was I can with out running on on to other subject
September 24, 2011

criminal juctice 230
Prepare a 200- to 300-word response to the following questions: •What is the objective of punishment in the criminal justice system? •How does punishment apply to the overall criminal justice system? •How may punishment assist with achieving institutional ...
September 24, 2011

Calculus
Can you arrange the digits 1-9, into a 1:2 fraction ( example 1/23+4/56+7/89=1) to equal 1? Only using each number once!
September 21, 2011

College Physics
Bob has just finished climbing a sheer cliff above a beach, and wants to figure out how high he climbed. All he has to use, however, is a baseball, a stopwatch, and a friend on the ground below with a long measuring tape. Bob is a pitcher, and knows that the fastest he can ...
September 18, 2011

early childhood
The first language arts skill that children learn is:
September 14, 2011

early childhood
Preschoolers use private speech to because it's more efficient
September 14, 2011

math
what does "find each unit rate" mean???
September 14, 2011

physics
Given that the electric potential is 7.0×10^−2 V higher outside the cell than inside the cell, and that the cell membrane is 0.10 thick, calculate the work that must be done (in joules) to move one sodium ion from inside the cell to outside.
September 5, 2011

geometry
B is the midpoint of AC. FInd BC if AB=3x-4 and AC=58
August 31, 2011

Physics
You are riding on a jet ski directed at an angle upstream on a river flowing with a speed of 2.8 m/s. If your velocity relative to the ground is 8.2 m/s at an angle of 25.0° upstream, what is the speed of the jet ski relative to the water?
August 28, 2011

Math
Identify the property communituve, associaive, or distributive? m+(n+6)=(n+6)+m
August 21, 2011

Math
Identify the property. X(a-b)= ax- bx
August 21, 2011

geometry
How many degrees is the base of your scalene triangle if the left leg at 35°and the right leg is 25°?
August 10, 2011

annuaties
Sally contributed $500 every six months for fourteen years into an RRSP earning interest at 7.5% compounded semi-annually. Seven years after the last contribution Sally converted the RRSP into an RRIF which is to pay her equal quarterly payments for sixteen years. If the first...
August 1, 2011

annuaties
Mr. Strupp expects to retire in 12 years. Beginning one month after his retirement, he would like to receive $500 per month for twenty years. How much must he deposit into a fund today to be able to do so if the rate of interest on the deposit is 12% compounded monthly?
August 1, 2011

statistics
a population has mean 15 and standard deviation 5. if 68% of the values in the population are between 10 and 20, the population cannot be normal
July 11, 2011

Statistics
A statistics professor gives a test and finds that the scores are normally distributed with a mean of 25 (out of 100) and a standard deviation of 5. She plans to curve the scores in one of two ways. 1) She could add 50 points to each grade. 2) She could use the following ...
July 5, 2011

Business
1. (TCO 9, 2, 3, 7) You have worked for an electronics company for the past three years. You have been assigned the responsibility to create a workbook presenting profits and losses at the company's end of year meeting. It is critical for the workbook to include a ...
June 23, 2011

exp ofmath
13/14 + 2/9 reduce answer to lowest terms
June 17, 2011

geology
I need help finding historical disasters associated with past earthquakes
June 8, 2011

algebra
i am not sure how he got this answer his name is reiny but i need alot more help wit math so someone help me please
June 6, 2011

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