Sunday

March 29, 2015

March 29, 2015

Total # Posts: 374

**Math**

The function h(t) = 2 + 50t -1.862t^2, where h(t) is the height in metres and t is the time in seconds, models the height of a golf ball above the planet Mercury's surface during its flight. A) What is the maximum height reached by the ball (i got 1165.8, is this correct) ...
*March 18, 2015*

**Math**

How do you write 4/9 as a decimal? Thanks for the help.
*March 17, 2015*

**Biology**

explain the consequence of x chromosome inactivation in terms of the proteins encoded by the x chromosome genes?
*February 19, 2015*

**math**

Miss Sue, is the answer that psydag give to Angel at 4:53 today correct? doesn't seem to add up
*January 29, 2015*

**math**

the product of two mixed numbers that are each between 4 and 5 is between 16 and 25. I think that is false. am I correct
*January 29, 2015*

**math**

I believe the answer is 3/5 x 1/2 is it correct Miss Sue
*January 29, 2015*

**math**

Three people share 3 kites
*January 27, 2015*

**Math**

Given that a cylinder has a volume of 1200cm^3, what is the volume of a cone that has the same height and same radius as the cylinder? explain your reasoning
*January 16, 2015*

**Probability and Linear Math**

SET UP BUT DO NOT SOLVE THE FOLLOWING LINEAR PROGRAMMING PROBLEM. A financier plans to invest up to $500,000 in two products. Project A yields a return of 10% on an investment, whereas Project B yields a return of 15% on the investment. Because the investment in Project B is ...
*December 1, 2014*

**Literature**

When you save documents, it is important to check the _____ at the top of the navigation window to ensure saving your file in the current location A.adress bar ** B.insert ribbon C.file type D.file name
*October 8, 2014*

**Math**

Tom and Lana both need $15,000 in 3 years. Tom finds an investment in which he can earn 8% compounded annually. Lana finds an investment in which she earns 7 7/8% interest compounded monthly. Who must invest more money now in order to get $15,000 in 3 years? How much more? ___...
*April 13, 2014*

**POL201**

Originalists often hold that it is incorrect to use the Equal Protection Clause of the Fourteenth Amendment to strike down laws that discriminate because
*March 17, 2014*

**math**

kristyn is 4 years younger than mario. 3 years from now, she will be two thirds as old as mario. find their present age.
*January 6, 2014*

**Geometry**

Find the area of the triangles in square centimeters: a. 3.5, 4.8, 6.1 b. 10.2, 4.4, 7.1
*December 4, 2013*

**Geometry**

The average human heart pumps about 60 milliliters of blood for each beat. a. About how many liters of blood does your heart pump each day? b. Do you think a reasonable degree of precision for this question would be to report the answer to the nearest 100 liters, 10 liters, 1 ...
*December 3, 2013*

**algebra**

how do you solve for w in a bmi equation, if only height (h=65 inches)is known and w (weight) is what is to be solved for? Bmi=703w/h^2
*October 4, 2013*

**business law**

Eagle Sales Company owns a warehouse, subject to a mortgage obtained from First National Bank. Separately, Eagle and First National obtain insurance policies from Good Hands Insurance Inc., to cover the warehouse. Later, Eagle sells the property to Interstate Distribution ...
*September 19, 2013*

**college math**

Please simplify 100(-5)/25. Thanks a lot.
*September 8, 2013*

**medical**

what is medical code for come due to barbiturate intoxication
*August 19, 2013*

**Math**

Quinn and Julius inherited $50,000 each from their great-grandmother’s estate. Quinn invested her money in a 5-year CD paying 1.6% interest compounded semiannually. Julius deposited his money in a money market account paying 1.05% compounded monthly. How much total money...
*July 7, 2013*

**Math**

Fantasia Florist Shop purchases an order of imported roses with a list price of $2,375 less trade discounts of 15/20/20. What is the dollar amount of the trade discount? Using your answer to the question above, what is the net dollar amount of that rose order? What is the net ...
*May 29, 2013*

**Math 6th :)**

Do you know of a number line calculator. I just need to have my calculation I did on a number line. Drawn up nice and neat.
*May 16, 2013*

**Math**

The amount allowed in weight per bus is 221 pounds. My friend weighs 60 pounds. For us to ride in a car together how much can you weigh? I wrote this solution. If it is right? if not could you show me the steps? x + 60 < = 161; at most 221 pounds. Is this right?
*May 16, 2013*

**chemistry**

While doing a titration lab to determine concentration of hydrogen peroxide what is the purpose of using an acid to dilute th H2O2?
*April 4, 2013*

**Chem**

you can use the equation: c=heat transferred/mass X change in temperature c=2.01J/gC mass= 104g chaneg in temp = 40.4C 2.01= x/ 104g x 40.4C x=8445.21J then divide that number by 1000 to get kJ the answer is 8.44kJ you can check my calculations but that should be the correct ...
*April 4, 2013*

**Teacher Aide**

A common characteristics of regional educational agencies is that they a don't hire aides b provide many services that individual school districts couldn't afford c serve all of the school districts in a state d are located in Eastern states
*March 9, 2013*

**latin**

translate to good enMonete, custodes, militem infelicem. Apud viros avaros hodie est.
*March 6, 2013*

**phi 103**

Logic can help analyze ethical problems.
*March 3, 2013*

**chemistry**

how many grams of nitrogen will react with 23 grams of oxygen
*February 21, 2013*

**Math**

If seven of the apples in a basket are red and there are 21 apples in the basket, what percent of the apples in the basket are red?
*January 14, 2013*

**Language Arts**

Okay, thank you both for the help. :)
*January 4, 2013*

**Language Arts**

it*
*January 4, 2013*

**Language Arts**

Is it C? That was my first answer to 4 but my sister said in was incorrect.
*January 4, 2013*

**Language Arts **

I just need someone to double check my work. :) Here are my answers: 1. C 2. B 3. A 4. B 5. D 6. B 7. A 8. A Here are the questions: Choose the option that correctly identifies the ( underlined words ) in each sentence. 1. (Stretching for 210 miles), the Thames is in England. ...
*January 4, 2013*

**Quantitative Analysis**

The dibasic compound B (pKb1 = 4.00, pKb2 = 8.00) was titrated with 1.00 M HCl. The initial solution of B was 0.100 M and had a volume of 100.0 mL. Find the pH at the following volumes of acid added and make a graph of pH versus Va; Va=0, 1, 5, 9, 10, 11, 15, 19, 20, and 22mL.
*November 14, 2012*

**Chemistry**

A 100.0 mL aliquot of 0.100 M weak base B (pKb=5.00) was titrated with 1.00 M HClO4. Find the pH at the following volumes of acid added Va= 0, 1, 5, 9, 9.9, 10, 10.1, and 12mL
*November 14, 2012*

**Chemistry**

A weak acid HA (pKa = 5.00) was titrated with 1.00 M KOH. The acid solution had a volume of 100.0 mL and a molarity of 0.100 M. Find the pH at the following volumes of base added and make a graph of pH versus Vb: Vb = 0, 1, 5, 9, 9.9, 10, 10.1, and 12 mL.
*November 14, 2012*

**chemistry**

I got 2.09 L of Hydrogen gas, but I am not sure if that is correct. Can anyone confirm?
*November 10, 2012*

**chemistry**

how many liters of hydrogen gas can be formed at 722 mmHg at 15 degress C when 5.5 grams of zinc metal with 150 mL of 1.25 molarity HCl solution?
*November 10, 2012*

**Math**

Why could the mean of the data set below be misleading? ages of teachers: 29, 38, 39, 26, 29, 29, 39, 77, 38, 29
*October 9, 2012*

**Math**

1-$50.00....1-$5.00....4-$2.00
*September 9, 2012*

**math**

in 1986, 43% of U.S. adults approved of men and women living together without being married. for the period from 1986 through 2007, the percentage approving of cohabitation increased on average by approzimately 0.6 each year. if this trend continues, by which year will 61% of ...
*August 12, 2012*

**environmental science**

Although most salamanders have four legs, the aquatic salamander shown below resembles an eel. It lacks hind limbs and has very tiny forelimbs. Propose a hypothesis to explain how limbless salamanders evolved according to Darwin's theory of natural selection.
*July 8, 2012*

**business management**

Complete the Consulting Project Plan. Revise and apply feedback as appropriate for Part One and Part Two. Include these revised sections in your final submission. Describe the applicable functional areas of business. Refer to your University of Phoenix Material: Functional ...
*July 1, 2012*

**algebra**

translate the following phrase into an algebraic expression. "the quotient of a number less seven and twenty."
*May 30, 2012*

**math**

All other conditions being equal, does a z or t value with larger magnitude have a larger or smaller corresponding P- value?
*May 28, 2012*

**Mathhhh Help!**

What is the probability that 3 will be spun on the spinner below? The sections in the circle are 8 sections with numbers, 1,3,2,4,2,4,2,3 My answer is 1/4 is this correct? The choices were 2, 1/4, 1/8, 3/8. I almost think to pick 2 but it doesn't seem right. So I chose 1/4...
*May 11, 2012*

**Math**

Virginia will spin each spinner once. What is the total number of different outcomes of a color and a number that can occur? the first color wheel is three sections of red, blue and green the other circle has sections of 1-8. Any help would be great and if you can explain in ...
*May 11, 2012*

**algebra-trig help asap**

Write an equation I'm not sure how to do this though. The sine of x with an amplitude of 4, period of 3(pie) and phase shift to the right of pie/4
*May 5, 2012*

**algebra-trig help asap**

An isosceles triangle has a base 36 cm long and a base of 65 degrees. Find its perimeter. I'm not sure if this is right but my answer is 1250.4 in^2
*May 5, 2012*

**College algebra**

An architect wishes to design a large room 122 feet long that will be a whispering gallery. The ceiling of the room has a cross section that is an ellipse whose foci are to be located 14 feet to the right and the left of center. Find the height h of the elliptical ceiling ( to...
*May 5, 2012*

**College algebra**

A circular vent pipe with a diameter of 5.5 inches is placed on a roof that has a slope of 1/4. Find an equation of the ellipse that should be cut from the roof so that the pipe will fit. Round parameters to the nearest hundredth.
*May 5, 2012*

**College algebra**

Find the standard form of the equation of the hyperbola with the given characteristics. Foci:(+4,0) or (-4,0) Asymptotes: y=4x or y=-4x.
*May 5, 2012*

**College algebra**

A fountain in a shopping mall has two parabolic arcs of water intersecting. The equation of one parabola is y = -0.25x^2+2x and the equation of the second parabola is y=-0.205x^2+4x-11.75. How high above the base of the fountain do the parabolas intersect? All dimensions are ...
*May 5, 2012*

**algebra-trig help asap**

x=sec^-1 2 I really need help with this problem. Thanks
*April 18, 2012*

**algebra-trig help asap**

Evaluate the expression. Assume that all angles are in Quadrant I. 14. tan(arccos 3/5)
*April 18, 2012*

**algebra-trig help asap**

Evaluate the expression. Assume that all angles are in quadrant 1. 1. cos(arccos4/5)
*April 18, 2012*

**college algebra**

a cub measures n inches on each edge. If a slice 1 inch thick is cut from one face of the cube and then a slice 3 inches thick is cut from another face of the cube, the resulting solid has a volume of 1560 cubic inches. Find the dimensions of the original cube.
*April 16, 2012*

**college algebra**

A propane tank has the shape of a circular cylinder with a hemisphere at each end. The cylinder is 6 feet long and volume of the tank is 5pie cubic feet. Find, to the nearest thousandth of a foot the length of the radius x.
*April 16, 2012*

**algebra-trig help ASAP**

Can someone please help me understand how to graph y=3cos(x/4)-5
*April 12, 2012*

**algebra-trig**

Can someone please explain to me how to graph sine and cosine step by step because I am so confused and I really really need help.
*April 12, 2012*

**algebra-trig**

Can someone please explain to me how to graph sine and cosine step by step because I am so confused and I really really need help.
*April 12, 2012*

**electricity and electronics**

9.electrons are emitted from a conductor when the conductor is
*April 1, 2012*

**chemistry**

An electron traveling at 4.3×105 m/s has an uncertainty in its velocity of 1.92×105 m/s. What is the uncertainty in its position?
*March 30, 2012*

**algebra-trig help asap**

An isosceles triangle has a base 22 cm long and a base angle of 72 degrees. Find its perimeter.
*March 26, 2012*

**college algebra**

a rectangular box has a volume of V(x)=x^3+13x^2+50x+56 cubic inches. The height of the box is x+7 inches. The width of the box is x+4 inches. Find the length of the box in terms of x.
*March 18, 2012*

**Algebra-Trig help asap**

A rhombus has sides of 5 cm each and one diagonal is 6 cm long. Find the area of the rhombus.
*March 13, 2012*

**algebra**

5+4x-7=4x-2-x label contradictions and identities show all work?
*March 13, 2012*

**Trig-Algebra help asap**

A regular octagon is inscribed in a circle with a radius of 5 cm. Find the area of the octagon.
*March 12, 2012*

**Trig-Algebra help asap**

A regular pentagon is inscribed in a circle whose radius measures 7 cm. Find the area of the pentagon.
*March 12, 2012*

**Trig-Algebra help asap**

A rhombus has sides of 5 cm and one diagonal is 6 cm long. Find the area of the rhombus.
*March 12, 2012*

**Trig-Algebra help asap**

can you please help me with another problem
*March 12, 2012*

**Trig-Algebra help asap**

The adjacent sides of a parallelogram measure 8 cm and 12 cm and one angle measures 60 degrees. Find the area of the parellelogram.
*March 12, 2012*

**Chemisty**

Calculate the mass of water in grams that could be produced from the reaction of 10.00mL 0.4122M hydrochloric acid and 35.00mL 0.1738M sodium hydroxide solution. Identify the limiting reactant.
*February 28, 2012*

**Chemistry**

I really need help with this question. If 2 trials using 10.0 mL of a solution with an unknown concentration were titrated using close to 20mL of a standard solution each trial, what approximate volume of the standard solution would be needed to titrate 20mL of the solution ...
*February 28, 2012*

**college algebra**

Ha Ha Thanks I didn't see the next post. Thanks so much you were so much help.
*February 26, 2012*

**college algebra**

so just to check is the answer y=-1/5x? Thanks for all your help by the way.
*February 26, 2012*

**college algebra**

I got -y=-5x+2 but I am confused on the actual math part. To get rid of the - on the y do I do y=1/5x+1/2?
*February 26, 2012*

**college algebra**

Write in y=mx+b form the line perpendicular to 5x-y=2 passing through (10,-2)
*February 26, 2012*

**college algebra**

Given f(x)= x^2-3+2 and g(x)=2x-4 find (fg)(-3)
*February 26, 2012*

**college algebra**

Given f(x) = sqrt of x+4 and g(x) = 1/x find (gof)(x).
*February 26, 2012*

**college algebra**

Given f(x)=sqrt x+4 and g(x)= 1/x find (fog)(x)
*February 24, 2012*

**college algebra**

Find the maximum or minimum for f(x)=3x^2+x+1
*February 23, 2012*

**college algebra**

given f(x)=4x-5, g(x)= x+5 over 4 Find (fog)(x). are these inverse functions?
*February 23, 2012*

**college algebra**

Find the domain of the function. q(s) = sqrt of 81-s^2
*February 21, 2012*

**college algebra**

t(x)=2x^2-1, Find t(2/3)
*February 20, 2012*

**algebra**

Which set of ordered pairs represents a function from P to Q? P={5, 10, 15, 20} Q={-2,0,2}
*February 20, 2012*

**Algebra/Trig Check Answers please **

Please check these answers thanks. 1. The shadow of a vertical pole is 24.8 feet long when the angle of elevation of the sun is 42degrees 0.0'. Find the height of the pole. Answer: 22.3=height 2. From a point on a lighthouse 108 feet above water, the angle of depression of...
*February 11, 2012*

**Algebra/Trig Check Answers please **

Can you please check these answers thanks 1. A ladder 14 feet long is leaning against a house. The foot of the ladder is 4.8 feet from the house. Find the angle of elevation of the ladder and the height it reaches on the house. Answer: 13.2=height 18.9 =angle of elevation 2. ...
*February 11, 2012*

**chemistry help asap**

Please check these thanks. 1. In a titration, 33.21 mL 0.3020M rubidium hydroxide solution is required to exactly neutralize 20.00 mL hydrofluroic acid solution. What is the molarity of the hydrofluroic acid solution? Answer: 0.502HF 2. A 35.00 mL-sample of NaOH solution is ...
*February 6, 2012*

**TRIG HELP ASAP**

I really need help on this problem. A sector has area of 15 in^2 and central angle of 0.2 radians. Find the radius of the circle and arc length of the sector
*February 6, 2012*

**math**

3 ft 3in x 7=
*February 2, 2012*

**college algebra**

on a ship, the distance d that you can see to the horizon is given by d=1.5 square root h, where h is the height of your eye measured in feet above sea level and d is measured in miles. How high is the eye level of a navigator who can see 16 miles to the horizon? Round your ...
*January 30, 2012*

**college algebra**

A model rocket is launches upward with an initial velocity of 160 feet per second. The height, in feet, of the rocket t seconds after the launch is given by h=-16t^2+160t. How many seconds after the launch will the rocket be 290 feet above the ground? Round to the nearest ...
*January 30, 2012*

**chemistry**

The solution that I got is 0.02 mL HNO3
*January 23, 2012*

**chemistry**

How many milliliters of 16.0 M HNO3 stock solution wouuld be required to prepare 100.0mL of 3.00 M HNO3? Use the formula M1V1=M2V2
*January 23, 2012*

**TRIG HELP ASAP**

I need help trying to find the major and minor axis on this problem: x^2+3y^2-6x+24y+6=0
*January 23, 2012*

**math116**

y= -1/2x-4 solve for x if y= -1 Answer would be x= -6. So the full answer would be (x,y)=(-6,-1)?
*January 14, 2012*

**triginomitry**

A cottage under construction is to be 12.6 meters wide. The two sides of the roof are to be supported by rafters that meet at a 50 degree angle.How long should the rafters be?
*January 9, 2012*