Friday
July 25, 2014

Posts by jerry


Total # Posts: 315

Geometry
Thank you very much Steve.

Geometry
a four sided garden plot has an irregular shape. the second side is 12 feet longer than the first. the third side is 24 feet longer than the second. the fourth side is 36 feet longer than the third. if the perimeter of the plot measures 136 feet, what is the length of the long...

Math
Assume that it costs Apple approximately C(x) = 36,100 + 100x + 0.01x^2 dollars to manufacture x 30-gigabyte video iPods in a day. How many iPods should be manufactured in order to minimize average cost? What is the resulting average cost of an iPod? (Give your answer to the n...

Math
Wow thank you so much!!!!

Math
Solve the optimization problem. Minimize F = x^2 + y^2 with x + 2y = 15. Thank You for the help!!

Math - Business Calc.
Ahhh okay my bad. Thank you!!!

Math - Business Calc.
Damon, thank you! But i tried entering it in but it said it was wrong. Also it wants the answer in inches cubed (in^3)

Math - Business Calc.
Chocolate Box Company is going to make open-topped boxes out of 5 × 17-inch rectangles of cardboard by cutting squares out of the corners and folding up the sides. What is the largest volume box it can make this way? (Round your answer to the nearest tenth.) Thank You fo...

math help plzzz!!!!!!!!!
-8<1-3(x-2)<13

math help plzzz
Solve the inequality then graph the solution set on real number line. (2/5x)>7 2(x+7)-4>5(x-3)

7th grade math
Solve the inequality then graph the solution set on real number line. (2/5x)>7 2(x+7)-4>5(x-3)

math
Jesse collected data on the colors of the coats his classmates wore one day in February. He started a circle graph. Which equation will give the angle measure of the section for black?

English
Bob what do you mean by Evolutionary mutation? Can you explain that a but more please.

English
Thanks a lot! my mind opened up more for this topic, i can see the light.

English
What is your opinion of the idea that the dangers we face may lie beyond our understanding? I just need some idea's, please help me out. I'm not that good at writing essays.

Algebra
Please help. f(x) -6x-1 and g(x)=4x^2 Select the solution for(f+g)(x). Thank you.

Please help!
Hi, I really need help with this one. Determine the equation of g(x) that results from translating the function f(x) = x^2 + 3 upward 12 units Thank you.

Algebra
Hello, This one as well. Thank you! Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -8x^2 + 3x + 9.

Algebra
Hello, I hope all is well. I am hoping you can help. Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -7x^2 + 6x + 3.

math
Karen and Wayne need to buy a refrigerator because theirs just broke. Unfortunately, their savings account is depleted, and they will need to borrow money in order to buy a new one. Sears offers them an installment loan at 13% (add-on rate). If the refrigerator at Sears costs ...

chemistry
was the formation of reactants or products favored by the addition of heat?

math
how do I multiply 53.33 100

stat
couple plans to have four children what is the probability that three are girls and one is a boy

math
elizabert has a box of shirts.1/2 of the shirts are small,2/5of the shirts are medium, and 5 shirts are large. how many shirts are in box?

Math
a man has a roll of 200m copper wire, he wires on room using 17m, and the next room using 83m of copper wire. How many meters is left on the roll after he does the two rooms?

math
is any multiple of 8 an even number or not

Computer Science
Given an undirected graph G = (V,E), does there exist a set D ⊆ V of size k such that every v ∈ V is either in D or adjacent to at least one member of D. Show that DS∈NPC. You may only assume that VC is known to be NP-Complete.

Physics
Tom the cat is chasing Jerry the mouse across a table surface 2.4 m off the floor. Jerry steps out of the way at the last second, and Tom slides off the edge of the table at a speed of 4.8 m/s. Where will Tom strike the floor? The acceleration of gravit...

Computer Science
Suppose X is a random variable and Y = aX + b is a linear function of X. Show that the correlation of X and Y is -1 if a < 0. cor(X,Y) = cov(X,V)/ sqrt(var(X)*var(Y))

Computer Science
Anyone?

Computer Science
cor(X,Y) = cov(X,V) / sqrt(var(X)* var(Y))

Computer Science
CORRECTION: Suppose X is a random variable and Y = aX + b is a linear function of X. Show that the correlation of X and Y is -1 if a < 0.

Computer Science
Suppose X is a random variable and Y = aX + b is a linear function of X. Show that the correlation of X and Y is 1 if a < 0.

Math
Fred decides that 12+40=62 is NOT a true equation.Is Fred correct?Explain.

5th grade math
if kelly gave 1/3 of a pizza to holly and 1/5 to diane how much did she have left?

Math
How would you use a number line to round 148 to the nearest ten.Explain.

Math
The base length, the screen height and the screen diagonal form a right-angle triangle. Therefore, you can use pythagorean theorem to calculate screen height: sqrt(40**2 - 32**2) = 24.0 Then surface is length by height: 32 * 24 = 768

Trigonometry
Solve the equation cos^2A = sin^2A + sinA when 0¨¬¡ÂA¡Â360¨¬. Select all the solutions from the list below. A. 330 degrees B. 270 degrees C. 150 degrees D. 30 degrees

math
The perimeter of a fence is 84 meters. If the width is 2 meters less than the length, find the width

math stats
Calculate p ̅. x1 20 n1 50 x2 55 n2 100

math stats
Set up the null and alternative hypothesis for the following problem. A survey reported the planning habits of men and women. The question asked, "how do you primarily keep track of meetings, appointments and deadlines?" 56% of men and 46% of women answered, "in...

statistics
What is your conclusion based on the following data? A survey was conducted to study the effects of weight loss from a low fat diet. Two random samples of 100 people each were selected. One group was put on the low fat diet and the other group on the regular diet. The weight g...

statistics
Set up the null and alternative hypothesis for the following problem. A survey reported the planning habits of men and women. The question asked, "how do you primarily keep track of meetings, appointments and deadlines?" 56% of men and 46% of women answered, "in...

statistics
Calculate p ̅. x1 20 n1 50 x2 55 n2 100

statistics
A store manager claims that the average age of his customers is less than 40 years old, while the industry average is 40 years old. He asks you to test his thinking. You collect a sample of 50 customers and found that the average age is 38.7. Assuming that the population stand...

statistics
How is the P-value used to determine whether or not to reject the null hypothesis?

computer
how to download C language? give any website for downloading C language.

math
how to find 2 fracture each third

math
A conical funnel has a base diameter of 4 cm and a height of 5 cm

Chemistry
What are the Six possible ratios for the equation for the formation of potassium chloride?

Chemistry
What are the Six possible ratios for the equation for the formation of potassium chloride?

world history
7. In the eleventh century, who did the Muslims refer to as "the army of God?"

stastics
For each of the following confidence intervals, indicate how much of the distribution would be placed in the cutoff region for a two-tailed test from 80%, 85% and 99%

Chemistry
For the following reaction at a certain temperature: 2( ) 2( ) ( ) 2 H F HF g g g +  it is found that the equilibrium concentrations in a 5.00 L rigid container are [H2]=0.0500 M, [F2]=0.0100 M, and [HF]=0.400 M. If 0.200 mol F2 is added to this equilibrium mixture, calcul...

Physics
5

human resources
What training and development programs help companies the most in a struggling economy?

math
Jim spoke on the phone with all his friends last weekend.On Saturday he spoke for 3/8 of an hour and on Sunday he spoke for half an hour. During that time spent, he spoke to liam for 1/8 of an hour .What fraction of the time Jim spent talking with his friends did he spend talk...

Science
Is it incorrect to use g/ml as the unit for the density of a solid object? I thought g/ml and g/cc were the same.

Science
If an object with a density of 0.8 g/cc is placed in pure water is it correct that 80% of the object will be below the water line and 20% of the object will be above the water line?

Finance
++__

chem
combination reaction. mg2+o2

Statistics
start with X=100 and add four x values to make a samle of 5 data such that the standard deviation of these data equals 0

arithmetic
does -9 + 2 equal 2 + (-9)?justify your answer.

Prove or Disprove
Cos(X+y)cos(x-y)= cos^2theta - sin^2theta I foiled the left side as a start because I can kind of see sin^2+cos^2=1 but I can't finish.

Prove or disprove?
cos(X+pi/6) + sin(x-pi/3) = 0 I am working with one side but I am not sure if I can subtract at all here.

Trig Identity
Prove or disprove the following identity sin^4theta - cos^4theta = sin^2theta-cose^2theta

math
If a bar code contains a letter followed by a digit from 1 to 9 followed by another letter how many different codes are possible?

calculus
What is the degree 5 coefficient of the polynomial p(x)= x^2 (x+1) (x+3x^3 + 4x^4)?

Calculus II
A spherical tank with radius of 5 feet is set on a coloumn 15 feet above the ground. How much work is required to fill the tank with water if the solution is pumped from ground level?

Science
What does sleep do for the body?

Science
My choices are evaporation and condesenation

Science
Large deposits of salt get into lakes in Utah due to what?

Math
Thanks!

Calculus 3
A medieval city has the shape of a square and is protected by walls with length 550 m and height 16 m. You are the commander of an attacking army and the closest you can get to the wall is 100 m. Your plan is to set fire to the city by catapulting heated rocks over the wall (w...

calculus
Rewrite 2sqrt(x) - (1/x) into exponents of x (eg x^2), and then take the derivative of each part of the equation.

english
thank you

english
Which of the following choices best describes the error in this sentesce? The man is a scientist with a keen sence of observation and who dedicates long hours in the lab. A Misplaced modifier B Fragment C Dangling modifier D Uneven parallelism I chose D

english
thank you

english
Which of the following is a fragment? A. The dancer floated across the stage. B. The truth can be unpleasant. C. The canoe withe the blue ropes. D. The rams locked horns, and the tourists watched them from far away. I chose C

English
thank you

English
Each one of the following sentesces contains a cluase.In which sentence is the clause used as an adverb? A. I do not mind fishing, as long as I don't have to bait the hook. B. All of the delegated who have actual opinions should keep silent. C. What you really need is a ba...

Chemistry
A 150g potato cools from 100 degrees Celsius to 50 degrees Celsius. If the specific heat capacity of the potato is 2000 j/kg degrees Celsius, how much heat does the potato lose?

English
thank you very much

English
after doing some more reading and looking at some of these web pages u sent i think the answer is A

English
Select the sentence in which all pronouns are used correctly. A. I sat between him and her during the sales conference. B. Just between you and I, I am not impressed by our new manager. C. Be sure to divide all income from the suburban property between he and I. D. I hope shee...

Physics
Im sorry but what is the equation to use t in? Im confused by your wording.

Physics
From the edge of the rooftop of a building, a boy throws a stone at an angle 20.0° above the horizontal. The stone hits the ground 4.60 s later, 104 m away from the base of the building. (Ignore air resistance.) What is the maximum height H reached by the stone? (I found t...

Physics
With your equation, my vertical and horizontal answers are correct, however the equation for T is wrong. Any other suggestions?

english
In the following sentence, what is the subject complement? My neighbor is a newspaper reporter.

Finance
On January 1, 2011 you bought a two-year U.S. government bond with a principal (face value) of $1000 and a coupon rate of 6% with coupons paid on December 31, 2011 and December 31, 2012. The principal will be repaid on December 31, 2012. The Consumer Price Index (CPI) was 120 ...

chemistry
What mass in kilograms of E85(d = 0.758g/mL) can be contained in a 11.5gal tank?

history
thank you

history
A. stopping the Vietnam War. B. supporting the nonviolent strategies of Martin Luther King, Jr. C. expanding voting rights. D.expanding economic opportunity. i chose D

history
During the tubulence of the 1960s black activism focused primarily on

math
why can you simplify 5(50+3) using the distributive property? why can't you simplify 5(50)+ 3 using the Distributive property?

history
The _______ damanded that Latin American countries keep their financial affairs on order or risk intervention by the United States

history
The _________ expressed the darkest and most ominous aspect of the rural counterattact of the earlt 1900s.

history
During the election of1936, declaring their party a "millionair's union," Franklin Roosevelt focused maimly on defending the

history
The presidential election of 1928 pitted Al Smith of New York against.

ap geometry
JM=MK=JK/2 x/8 = (3x/4-6)/2 x/8 = (3X/4-24/4)/2 x/8 = 3x/8 - 24/8 x = 3x - 24 x-3x = -24 -2x = -24 x = 12 12/8 = 1.5 = JM = MK

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