Wednesday
April 23, 2014

Posts by Lori


Total # Posts: 426

math
a disk has an area of 250 square inches.what is theradius of the disk?

calculus
An airplane is cruising at 340 km/h at an altitude of 4000 m. If the plane passes directly over an observer on the ground, how fast is the distance from the plane to the observer changing when it is 3000 m away from the point directly above the observer?

Algebra
A grocer mixes 5 lb of egg noodles costing $ .80/lb with 2 lb of spinach noodles costing $1.50/lb. What will the cost per pound of the mixture be?

Algebra
Susan drove for 2 hours at 85 km/hr and then for 3 hours more at 95 km/hr. What was her average speed for the entire trip?

Algebra
If 800ml of a juice drink is 15% grape juice, how much should be added to make a drink that is 20% grape juice?

science
please tell me if you agree with the following: Which Brand of popcorn hs the least amount of unpooped kernels after 3 minutes. Brand 1 has 1 Brand 2 has 15 Brand 3 has 16 Brand 4 has 5 Brand 5 has 25 the answer is Brand 1 BUT is the: independent variable the different brands ...

Chemistry
15.0 moles of gas are in a 6.00L tank at 298.15K. Calculate the difference in pressure between methane and an ideal gas under these conditions. The van der Waals constants for methane are a=2.300 L^2*atm/mol^2 and b=0.0430 L/mol. I found the idea gas pressure to be 61.2 atm by...

social studies
What is an example of a nonrenewable resource?

Physics
An object with mass 3.7 is attached to a spring with spring stiffness constant 270 and is executing simple harmonic motion. When the object is 2.5×10−2 from its equilibrium position, it is moving with a speed of 0.45 . what is the amplitude of the motion?

Ethics
THe gm of a software company is in the process of constructing a new facility in a country. THe gm has a manager of native origin acting as liaison between the company and government officials. THe new facility requires some permits and licenses. Government officials have indi...

math
how do i solve 6.3*10^5=9*10^4*t

algebra
If a rocket traveled at 9*10^4 miles per hour . How long would it take to reach the moon from the planet.The moon is 6.3*10^5 miles from the planet it orbits.

Probability and Stats
A graduate class consists of six students. What is the probability that exactly three of them are born either March, June or November?

math
Okay, I got: v+6-c and c=c-6 for 120=(v-c)*20 AND: c=12-v and v=6/5-c for 120=(v+c)*10 Now what do I do?

math
A tugboat goes upstream 120 miles in 20 hours. The return trip downstream takes 10 hours. Find the speed of the tugboat without the current and the speed of the current.

Mat/116
In 2000,in country A, the average family net worth was $340,000,and there were about 9.4*10^7 families. Calculate the total family net worth in Country A in 2000.

Math
The perimeter of a rectangle equals the sum of the length of its four sides.If the width of the rectangle if 7 inches and its perimeter is 48 inches, what is the length of the rectangle?

Math
f(a)=t, f(b)=s, f(c)=r, f(d)=t Write the function as a set of ordered pairs. Give the domain and range of F.

Math
Thank you!

Math
So then it is .095?

Math
I have to round the .0947 to the nearest thousandth so it would be .09?

Math
Yes, I want the .0947 so that I could do the linear equation. Since the linear equation is A=10-.947(95)which means A = 1.0035?

Math
A certain mountain has an elevation of 19,583 feet. In 1907, the glacier on this peak covered 10 acres.By 2002, this glacier had melted to only 1 acre. (a) Assume this glacier melted at a constant rate each year. Find this yearly rate. (b)Use your answer from part (a)to write ...

Mat/116
An investor invested $3,400 in two mutual funds.One fund earned a 6%profit while the other earned a 3% profit. If the investor's total profit was $144,how much was invested in each mutual fund?

Early Childhood Literacy
Children with many experiences with stories: A-can accurately sound out words. B-tend to know stories have predicitable segments and features C-can read simple words as was or am by late preschool years. D-realize words are separated in sentences and that sentences end in peri...

Grammar
Identify the tenses (past, present, mixed): 1. Synthes self-retaining anterior cervical retractors were then placed behind the longus colli muscles. PAST TENSE ________________________________________ 2. There was a small rent in the middle left posterior longitudinal ligament...

Grammar
Specify if sentences are complete, fragments or run-on: 1) The surgical team recommended that surgery be performed as soon as possible, the patient, however, wanted more time to think about it. SENTENCE FRAGMENT 2) Postoperative plan is for the patient to mobilize as tolerated...

Grammar
Choose the correct answer I put my answers in CAPS: 1) Neither his physician nor the floor nurses HAVE been in to see him yet this morning. 2) On sponge and instrument count, it was noted that one of the sponges WAS missing. 3 The costs of his research WERE paid by the hospita...

Math
Need to make a monthly amortization schedule. Borrowing 16000 over 4 years at 3.5%. Do I need to calculate for 48 months in order to do this project correctly? I do all the calcs for 48 months and I still end up with approx a payment left over?

math 117
perform the indicated operations and simplify z-4/z-6 - z+1/z+6 + z-30/z^2-36

writing
what is wrong with this pargraph Since every person has only one opportunity to live each hour of his life, the time must be spent wisely. He should spend it thoughtfully. He should care what he does with his time. He should use good judgment. He should be intelligent in his c...

science
Are there enough resources in the world for 8 or 10 billion people to live decent, secure, happy lives?

Math
A jar contains 6 red marbles and 10 blur marbles all of equal size. if Dominic were to randomly select 1 marble without replacement and then select another marble from the jar, what would be the probability of selecting 2 red marbles from the jar.

Management 330
Help with doing a powerpoint presentation with show the Four Functions or management with Ethics

chemistry
The Haber process for ammonia synthesis is exothermic: N2(g) + 3H2(g) <==> 2NH3(g) ∆H° = -92 kJ If the equilibrium constant Kc for this process at 500.°C is 6.0 ξ 10-2, what is its value at 300.°C?

math
thank you miss sue

math
Emory is mounting 3 shelves of 12 3/4 in apart on a wall. If each board is 3/4 in. thick, what is the total vertical space occupied by the set of shelves?

math
Two numbers have the sun or 100. Bothe numbers are divisble by 4 but not 5. Their quotient is also divisble by 4

Social Studies
How did the belief in Manifest Destiny influence western settlement

Social Stuides
DURING THE 1840'S MANY MORE AMERICANS THAN BRITISH SETTLED IN THE OREGON COUNTRY HOW DID THIS INFLUENCE THE NEGOTIATION OVER THE TERRITORY

Chemistry
The density of sulfuric acid is 1.82g/mL. What volume of sulfuric acid is needed to obtain 98.0g of sulfuric acid

Quality management/performance improvement
as a health information management coding supervisor, you have been asked to compare the steps of the current coding process with a proposed coding process. what would be the best tool to use for this process? a. Root-cause analysis b. scatter diagram c. flowchart

physics
a girl throws a stone vertically upward with an initial speed of 8 m/s. How high will the stone rise? How long will it take to return to the ground after it is thrown?

physics
A driver is moving at 32 m/s when they see a deer in the road standing 74m in front of them. They hit the brake and slow down at a constant rate of 9.5m/s2. Will the driver hit the deer? this is a 2 part problem

physics
A bullet penetrates 7 cm into a block of wood when fired at a speed of 33 m/s. Find the deceleration and the time taken to stop.

algebra
What is 34 divided by 25 in a lowest form

algebra
What is 34 divided by 24 in a lowest form

Math
The length of a rectangle is 3cm. If the length remains constant, and the width changes, what r the possible perimeters for the different rectangles?

Intro.Criminal Justice
which sentencing philosophy is best suited for cybercrimes

org chem
Using reagents no more than four carbons long, propose a synthesis of (1R,2S,4R,5S)-1,2,4,5-tetramethylcyclohexane and (1S,2R, 4R, 5S)-1,2,4,5-tetramethylcyclohexane. Would like a way to start this...

Chemistry 1010
Describe exactly how you would make 150.0g of a 4.00% (w/w) solution of NaBr in water ?

government
with the exception of Washington DC Only states get electoral vote equaling the number of Representative in congress. Tn has 9 Reps and two senators so 11 electors is given to Tn. Astronauts, military or any one else can vote absentee being citizens of a state.

Algebra
A person rolls two dice. What are the odds against throwing at most a six?

Algebra
How many three symbol codes using the digits 3 through 9 are possible if repetitions are allowed? (243 is an example of a three symbol code).

math
using these digits 1,9,3,6 Whatis the least 2-digit you can make? What is the greatest 2-digit you can make?

stats
Suppose we have a population of scores with a mean (μ) of 200 and a standard deviation (σ) of 10. Assume that the distribution is normal. Provide answers to the following questions: What score would cut off the top 5 percent of scores? What score would cut off the bo...

statistics
Suppose we have a population of scores with a mean (μ) of 200 and a standard deviation (σ) of 10. Assume that the distribution is normal. Provide answers to the following questions: What score would cut off the top 5 percent of scores? What score would cut off the bo...

english
In this sentence, what part of speech is the word Teresa's: Teresa's parents have formed a service organization for the community.

algebra
3 - 6/7 x = 21

math 9th grade
the length of a rectangle is 100 inches more than the width. if the perimeter of the rectangle is 1320 inches find the demensions

math word problems
Sally and marta had the same number of postcards. After sally sold 18 of her postcards, marta had 4 times as many postcards as sally. How many postcards did each girl have to begin with?

Algebra
Take west to be the positive direction. The height of a sloped roof above the place where I stand is h = 18 feet (see the figure below). If I move x = 5 feet west, the height is 10 feet. What is the slope?

math
Hannah and francine have $120. Hannah and peter have $230. Peter has 6 times as much money as francine. How much money does hannah have?

Grammar
Thx, Sue!!! Can u please help me with these others. Agreement errors: 1) Verb tense error 2) subject verb error 3) pronoun agreement error 4) modifer placement error 5) parallel structure error Q:The patient is thin, combative, uncooperative, oriented only to person, and inter...

Grammar
what is the agreement error in the following sentence: One of the options concerning his future surgeries were discussed with him.

Chemistry
What are the products for the reaction of Sodium hydrogen phosphate with nickel II nitrate Ni2HPO4 + Ni(NO3)2 -->

math
given the linear equation y=-4/3x+1, find the y-coordinates of the point(-6<), (-3,)and (6,) these are the kind of problems that make me get confused

math
i come up with 50 miles , am i correct?

math
allowing $150 for office move. Rental truck is $70 and $1.60 a mile. how many miles can be driven, and not go over budget

chemistry
Which one of the following will have the greatest number of moles of potassium ion: 10.0 mL of .10 M potassium hydroxide, 30.0 mL of 0.15 M potassium carbonate, or 25.0 mL of 0.080 M potassium phosphate

Chemistry
determine the number of grams of KCl salt contained in 1.25L of a 5.00%(W/V) KCl(aq)

ochemistry
How many pi-electrons are in the thiazoline ring of thiamine hydrochloride? of thiamine?

ochemistry
Why might the presence of Benzoic acid be deleterious to the Benzoin condensation?

Physics
An aluminum cube that has an edge length of 7 cm. is placed in a beaker of water that is filled to the brim. As a result the water overflows. what volume of water overflows when the aluminum cube is submerged in the water?

geometry
Given the following sets, select the statement below that is NOT true. A = {b, l, a, z, e, r}, B = {b, a, l, e}, C = {a, b, l, e}, D = {l, a, b}, E = {a, b, l} (Points : 2) E ⊂ C C ⊆ B D ⊆ C B ⊆ C C ⊆ D

algebra
I need to simplify (6x^2y^3)(9x^2y^3)/3x^2y^2. I don't know whether I'm supposed to multiply or divide or both?

algebra
write slope intercept equation for the line containing the given pairs of points (-3.4) and (3,1)

child care
nutrition

algebra
y=2x-1 y=3x-2

algebra
A home's backyard drops 9 ft over a horizontal distance of 124 feet. Find the slope of this back yard. Round your answer to two demical places

Algebra 2
The speed of the current is 5m/h. Angie goes upstream 25 miles and returns to the doc. The whole trip takes 12 hours. What is the speed of the boat in still water?

biology
a a a a a a a

Math
1/(1+(1/2+1/2)^6*(2)^3)is

math
factor completely 7y^2+22y+3

math
factoring to solve quadratic equation 5x^2=16x+45

math
Thanks for the answer Reiny, could you explain the way you solved the factor of 21y^2+38+5

math
factory completely 21y^2+38+5

Chemistry
1.69 L of an aqueous solution containing 25.00 g of KCl dissolved in pure water is prepared. What is the molarity of the solution?

Algebra
Is y=3x+67 a linear equation?

Math
What is the product of 11/15 and 12/7?

math
express 55 minutes as a fraction of 1 1/3

Math
Repeated sample of 36 are drawn from a population with mean 52 and standard deviation 18. What is the standard deviation of the distribution of the sample means?

Intermediate Accounting
E6-10 Assume that Serena Williams desires to accumulate $1 million in 15 years using her market fund balance of $182,696. At what interest rate must Serena's investment compound annually? I came up with 12,179.733 per year; but know this is incorrect.

Intermediate Accounting
E6-5 Mike Finley wishes to become a millionaire. His money market fund has a balance of $92,296 and has a guarateed interest rate of 10%. How many years must Mike leave that balance in the fund in order to get his disired $1,000,000? I am getting $9,229.60 and know this is not...

math
How do I create a game with a 55percent chance of winning for Gr12 data management

psy 202
examples of how one domain impacts the other two in adult development

Phy202
what are some examples of how one domain impacts the other two in adult development?

Chemistry Kb question need to clarify something
-3.36(log button or 10^x button)= syntax error ??

Chemistry Kb question need to clarify something
the pKb for methylamine is 3.36, what is the Kb for methylamine? pKa+pKb= 14.00 Kb= 10^-pKb = 4.4x10^-4 is the answer but HOW?? what is punched into the calculator to get 4.4 x 10^-4??

chemistry!
determine the pH of the following mixture. 50.0 mL of 0.0260 M Benzoic acid and 0.626 g of sodium benzoate (assume the final volume is 50.0 mL) please explain the steps

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