Thursday
April 24, 2014

Posts by Jan


Total # Posts: 287

elem algebra
the current in a stream moves at a speed of 10 mph. a boat travels 17 mi upstream and 17 mi downstream in a total time of 10 hr. What is the speed of the boat in still water?

chemistry
Copper(II) chloride and lead(II) nitrate react in aqueous solutions by double replacement. Write the balanced chemical equation, the overall ionic equation, and the net ionic equa- tion for this reaction. If 10.27 g of copper(II) chloride react, what is the maximum amount of p...

2nd grade math
Mr foster places 11 garden lights along an 80 meter path. Each light is placed an equal distance apart. How far away is the sixth garden light from the second?

physical science
a weigh lifter raises a 70-kg barbell from the floor to a height of 2.2 m in 1.2s what was his average power output during the lift?

geometry
Dru is challenged by her geometry teacher to estimate the height of the school flag pole without measuring. She decided to walk off the length of the shadow cast by the pole by successively walking the noted length of her shadow. If dry is 5ft 6 in.tall and she estimates the f...

math
what is the combined height of 6 nickels?

Calculus
oh, sorry about that! h(t)=t^3/4-6t^1/4

Calculus
Find the critical numbers of the function. h(t)=t^3/4-6^1/4

Calculus
Thanks for the help :)

Calculus
Find dy/dt. y=cos^4(pi(t)-20) If you could please show step-by-step, it would be much appreciated. Thanks in advance!

Calculus
Find the derivative. s=t^6tan(t)-sqrt t

Calculus
Find the derivative. s=t^6tan(t)-sqrt t

English
What literary devices does these three sentences pertain to? 1. I am guiltless in the matter, so I wash my hands if it. 2. I had to wait an eternity for the file to download. 3. Her emotional problems placed a wall between her and her family. ( an attitude or actions which pre...

English
Connotation! Right?

algebra
But I am getting more and more confused. -3-3x=-9????? and x/6=-24 but the there is a negative sign like x - - =-24 6 I know I am over thinking this,but I am confusing myself on these two???

algebra
what is the correct algebraic expression or equation when b is divided by -5 and the result is 14?

reading
"Leadership by default; the United States and the final frontier." which of the following topics are listed under related subjects? a. discovery and exploration b. surveys c.mars and d. national security

Business Statistics
The U.S. Dairy Industry wants to estimate the mean yearly milk consumption. A sample of 16 people reveals the mean yearly consumption to be 60 gallons with a standard deviation of 20 gallons. a. What is the value of the population mean? What is the best estimate of this value?...

uitm
Household hydrogen peroxide is an aqueous solution containing 3.0% hydrogen peroxide by mass. What is the molarity of this solution? (Assume a density of 1.01 g/mL.)

math
Home health signed a 90,000 note at 11 1/2% simple interest for 180 days for electronic equipment, on October 1. On February 18, the note was sold to another firm at a discount rate of 12 1/2%. Find a) the discount period, b) the discount, and c) the proceeds.

Algebra 1
I dont understand this question.For each event ,circle the most appropiate term. 19. 6*5*4*3*2*1 Counting principle, combination, factorial,permutation.

algebra 1
Compare y=1/(x+3)+3 and y=1/x

algebra 1
Graph each function;identify the domain and range;and compare the graph with the graph of y=1/x. 1.y=-10/x Domain: Range: Compare: 2.y=1/(x+3)+3 Domain: Range: Compare:

algebra 1
Madison is making a vinaigrette for her catering service using olive oil that costs forty cent per ounce and apple cider vinegar that costs twenty-five cents an ounce.The ideal batch of vinaigrette has 25% vinegar.If she has already combined 3 cups of vinegar and 1 cup of oil,...

algebra
the vertices of quadrilateral EFGH are E(-7,3) F (-4,6) G (5,-3) and H (2,-6) what kind of quadrilateral is EFGH

art
What are the subclaims in Bernini's works of art

algebra 1
Solve the rational equation below. 1/x-2+ 2x/(x-2)(x-8)=x/2(x-8)

algebra 1
Solve rational equation 1. 2/b-2=b/b^2-3b+2 + b/2b-2

Business Math
Home health signed a 90,000 note at 11 1/2% simple interest for 180 days for electronic equipment, on October 1. On February 18, the note was sold to another firm at a discount rate of 12 1/2%. Find a) the discount period, b) the discount, and c) the proceeds.

algebra 1
Simplify using long division(please show work so I understand) 1.Divide (72-8x^2+4x^3-36x)by (x-3) 2.Divide (8b^3-6) by (2b-1)

PHYSICS
There is a mass at the end of a 0.6 m string, being swung around overhead at constant acceleration of(3/4)pi rad/sec^2. mass is 39.84 G. Tensile strength is 12.4 newtons need to find how many revolutions there will be before the string breaks, and the time before that happens....

PHYSICS
There is a mass at the end of a 0.6 m string, being swung around overhead at constant acceleration of(3/4)pi rad/sec^2. mass is 39.84 G. Tensile strength is 12.4 newtons need to find how many revolutions there will be before the string breaks, and the time before that happens....

Pre-Algebra
outside temperature and heating bill. As the temperature goes down, the heating bill will increase. So they show a negative trend.

Physics
oh, and tensile strength of string is 12.4 newtons

Physics
There is a mass at the end of a 0.6 m string, being swung around overhead at constant acceleration of(3/4)pi rad/sec^2. mass is 39.84 G. need to find how many revolutions there will be before the string breaks, and the time before that happens.

intro to physical science
Use equation: T(c)= 5/9(T(F)-32*) So you don't know the Celsius Temp So all you need to do is fill in the equation.... T(c)= 5/9(160-32) 160-32=128 5/9(128)=71.1111

Physics
A 1000-kg car moving east at 80 km/h collides head-on with a 1500-kg car moving west at km/h, and the two cars stick together. (a) Which way does the wreckage move and with what initial speed? (b) How much KE is lost in the collision?

Intro to Physical Science
*How do I figure the Velocity.....

Intro to Physical Science
Iunderstand that KE=1/2mv^2 and PE=mgh;however, I do I figure the Velocity when only the mass and the height is given...

Intro to Physical Science
A 3-kg stone is dropped from height of 100 m. Find its kinetic and potential energies when it is halfway to the ground.

Physics
HELP PLEASE!

Physics
A 12000 kg airplane launched by a catapult from an aircraft carrier is accelerated from 0 to 200 km/h in 3 s. (a) How many times the acceleration due to gravity is the airplane's acceleration? (b) What is the average force the catapult exerts on the airplane?

Math
You are correct the answer is B.

Chemistry
A common laboratory reaction is the neutralization of an acid with a base. When 50.0 mL of the .500 M HCl at 25 C is assed to 50 mL of .500 M NaOH at 25 C in a coffee cup calorimeter, the temperature of the mixture rises to 28.2 C. What is the heat of reaction per mole of acid...

math
Hanna and Fran have 120. Hanna and Pete have 230.Pete has 6 times as much as Hanna. How much does Hanna have?

Calculus
Suppose f and g are inverses, and (1,5) is a point on the graph of f. If f'(1) = -3, what, if anything, does that tell us about g'(1).

math
what is the value of |x+3|+5x-7 for x =9

math
are these numbers ordered from the least to the greatest 0,1.square route of 2.3/2.square root of 3

math
If a board 4 ft.X 8 ft. was cut into 50 pieces, what size would each piece be?

history
Which of the following is true of President G. W. Bush? A. He reluctantly endorsed the Kyoto Protocol. B. He accepted the United States' role in the International Criminal Court. C. He vowed to punish all countries sponsoring terrorism. D. He rejected unilateralism.

science
An element emits one alpha particle, one positron, and three beta particles. Its atomic number.... decreases by 2 decreases by 1 stays the same increases by 1 increases by 2

carpentry
what is the angle of a ladder with a 4 metre vertical and a 1 metre horisontal

agl 2
rewrite: tan 4 X + tan 2 X/ 1 - (tan4X)(tan2X)

finance
You currently have $22,500 in your retirement account. What annual rate of return will you need to make on your investment in order to have $1,000,000 in the account on your 60th birthday? Will investing in CDs get you to your goal?

Geometry
Find the median of the trapezoid with vertexes at (0,3), (2,7), (8,7), and (12,3).

Physics
What is the basic difference between an electric generator and an electric motor?

Physics
What happens to the total circuit resistance when more devices are added to a series circuit?

childcare
question? The major goal of parent education is to?

childcare
question? The major goal of parent education is to?

science
What plants live in the Serengeti Ecosystem?

programmer
/ Cooper College maintains a master file of students and credits earned // Each semester the master is updated with a transaction file // that contains credits earned during the semester // Each file is sorted in Student ID number order start Declarations num masterID string m...

physics
This question has me stumped because I am not really sure about the capacitor. "Imagine a free electron and a free proton held midway between the plates of a charged parallel plate capacitor. When released, how do their accelerations and directions of travel compare? If w...

accounting
I need HELP in journalizing the following please: February 1 Paid $3,750 accounts payable balance due to a supplier. March 15 Received $2,500 partial payment on a $5,000 accounts receivable balance. Wrote off the rest of the account as uncollectible. April 1 April 15 Purchased...

accounting
Journalize: March 15 Received $2,500 partial payment on a $5,000 accounts receivable balance. Wrote off the rest of the account as uncollectible.

accounting
March 15 Received $2,500 partial payment on a $5,000 accounts receivable balance. Wrote off the rest of the account as uncollectible.

math
Sam wants to tile the roof of his shed with square tiles that are 4 inches square. His roof is 12 feet by 12 feet. How many tiles does he need?

math
LMN have vertices at L(0,4) M(-5,2),and N (2,-2). determine the equation for the perpendicular bisector that passes through MN

Physics
If a force F=200N is applied to the 34 kg cart, determine the time for the 20-kg block A to move on the cart 1.5 m. The coefficients of static and kinetic friction between the block and the cart are staticfriction=0.3 and kineticfriction=0.25. Both the cart and the block start...

geometry
true or false Given: <A and <B are complementary Conjecture: m<A + m<B = 90

MATH
iF MAN RUNS AN HOUR AND A HALF AT 8 MILES AN HOUR DUE SOUTH, AND THEN HE CONTINUES SOUTH ON A BUS TRAVELING AT 55 MILES AN HOUR , FOR 24 MINUTES. hOW FAR DID HE TRAVEL?

Physics
A hot-air balloon rises from the ground with a velocity of (2.00 m/s)y. A champagne bottle is opened to celebrate takeoff, expelling the cork horizontally with a velocity of (6.00 m/s)x relative to the balloon. When opened, the bottle is 7.00 m above the ground. 1)What is its ...

Physics
You encounter a moving walkway that is 97 m long and has a speed of 2.0 m/s relative to the ground. How long would it take you to cover the 97 m length of the walkway if, once you get on the walkway, you immediately turn around and start walking in the opposite direction with ...

Physics
Vector {A} points in the negative y direction and has a magnitude of 14 units. Vector {B} has twice the magnitude and points in the positive x direction. Find the direction and magnitude of {A}+{B} counterclockwise from the positive x axis.

Math
How do you figure out the equation; 3k/5 + 44 = 12k/25 +8

Medical Coding
A physician performed an aspiration via thoracentesis on a patient in observation status in the hospital. The patient has advanced lung cancer with malignant pleural effusion. Later the same day, due to continued accumulation of fluid, the patient was returned to the procedure...

math
3(x-1)-(3-x) if x=2

math
Thanks....

math
I am greater than 10. I am less than 20. One of my factors is double the other. what number am i?

precalculus
graph the parabola y=2x^2-6x-3. plot point on the parabola A[1,-7] and draw a line through A with an angle of inclination equal to 30 degrees. then find the equation of the line and its second point of intersection B, with the parabola

human resources
what is meant by the statement that trading is extremely faddish?

managing human resources
what is meant by the statement that trading is extremely faddis

Science
Who else might buy oil-eating bacteria besides oil spill cleanup companies?

managing human resources
why do many companies find increasing and managing diversity to be difficult challenges

business
what are the differences among the research approaches that guide the predominant kinds of studies done in operations research, marketing, finance and/or orgaizational behavior

The Nature of Chemical Reactions
1.D 2.B 3.B 4.A

education
in the second circle of hell(canto v), where the lustful or carnal are punished, what beautiful woman from the ilad and what beautiful woman from the aenield both appear?

special education
I need an answer to a literture question that i can't find. A judge in canto vii,named minos,use his longtail to assign the penalty for each condemned sinner?

Math
Reduce 5/10 to 1/2 so your answer is 11 1/2

Finance
17+12+3=32% 26,965.00*0.32=8,626.80 26,965.00-8,626.00=18,336.20

eng/lit
i think it is d

eng/lit
In line 8 Of against that time the reasons mentioned are best characterized as a)scientific explanations for a natural force b)arguments against rationality itself c)arguments for the importance of loving d)logical explanations for the absence of love e)counterarguments to the...

eng/lit
metaphoric and logical

eng/lit
I think it is a) concrete and matter-of-fact

eng/lit
Which of the following best describes the language of the poem Against that time Shakespeare? a)concrete and matter-of-fact b)euphemistic and prosaic c)metephoric and logical d)informal and conversational e)ironic and amused

eng/lit
i think it is e)do ensconce

eng/lit
in the sonnet against that time shakespeare in lines 1-12,which of the following is a main verb? a)come line 1 b)shall see line2 c) shalt pass line5 d)shall find line8 e)do ensconce line 9?

eng/lit
i think it is a lover because he says if ever that time comes

eng/lit
in shakespeare's against that time the speaker is addressing who? choices are a lover or former lover?

english
in the poem the tortoise in eternity,what does the poet refer to writing patterned horn?

basic statistics for the behavioral sciences
on a standard test of motor coordination, a sports psychologist found that the population of a average bowlers had a mean scores of 24,with a standard deviation of 6. she tested a random sample of 30 bowling alley and found a sample mean of 26, a second random sample of 30 bow...

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