Posts by Mary

Total # Posts: 3,863

world regional geography
Sudan is omitted from inclusion in the sub-Saharan region because it

world regional geography
Which of the following is true of the Antarctic Treaty System?

world regional geography
A major objective of the South Pacific Forum founded in 1971 was

algebra
you have N= 2,500 + 100 -Ina Cm > with a line under the > 1 How many units are sold after spending $1,000? Round the answer to the nearest whole number.

chemistry
A cylinder contains 40 g of HE, 56 g of N2, and 40 g of Ar. How many moles of each gas are in the mixture?

health care
i need an example of Social Constructionism benefits with the elderly population I think the answer is the health care worker I am in Masters program Thank You Mary

health care
Is an example of the social Constructionism with an elderly person, a caregiver Thank you

algebra
solve each exponential equation. Given the value for x 8^x=1/64 3^x=6 Can someone show me how to preform these. I would greatly appreciate it Thank You

algebra
Thank you very much it is greatly appreciated.

algebra
25=(1/5)^-2

algebra
Thank you very much Steve for explaining it like you did, that was a great help. It is greatly appreciated. Have a wonderful day.

algebra
write the equation in logarithm form a) 343=7^3 b) 25-(1/5)-^2 c A=bc Thank you for your help. I have no idea how to do this problem and I am getting stress.

algebra
MathMate, I want to thank you so much in how you explained it. Thank you again and have a nice evening

algebra
Let U=1,2,3,4,5,6,7,8,9,10 {x|x is multiply of 2} U {x is multiply of 7}

math
the circumference of a circle is 120 millimeters. Which of the following inqualities is true for d, the diameter of the circle measured in millimeters? A. 10<d<20 B. 30<d<40 C. 50<d<60 D. 70<d<80

algebra
Let U= 1,2,3,4,5,6,7,8,9,10 {12345 n 34567 Thank you

algebra
thank you Steve it is appreciated very mush

Chemistry
Im not exactly sure what how to solve this with the way my teacher asked this question. "For hydrogen atom transitions calculate E, v, and wavelength:" Ni= 1 li= 0 Mli= 0 Msi= -1/2 Nf= 2 Lf= 0 Mlf= 0 Msf= -1/2 E(kj)= ? v(Hz)= ? wavelength(m)= ?

algebra
solve the equations 21E-7=0 I came up with 0.33 am I right or wrong

Probability
1)2/lambda 2)4/lambda CORRECT!!!!!

algebra
thank you Ms. Sue

Probability
1)1/8 2)1/8 3)1/8 4)1/6 5)5/16 6)10/3 CORRECT ANSWERS

algebra
a certain test us worth 125 points (rounded to the nearest point are need to obtain a score of 75%

algebra
if you multiply a number by 4 and than subtract negative 10, the difference is a negative 26. what is the number

algebra
the pitch of a roof is the ratio of the rise to half span. If a roof has a rise of 6 feet and a span of 20 feet what is the pitch. Thank you

probability
a = (lambda*s)^(m-n)*e^(-lambda*s) b = m-n c = lambda^m*s^(m-n)*t^n*e^(-lambda*(s+t)) d = m-n f = (s^(m-n)*t^n)/((s+t)^m) g = m h = m-n E[NM] = (lambda*t)*(lambda*s)+lambda*t+(lambda*t)^2 ALL CORRECT!!!

probability
1) (LW)/(LE+LW) 2) (LE)*e^(-(LE)*x) 3) e^((-LW)*2*t) 4) ((LE)^7*v^6*e^((-LE)*v))/(720) the rest i haven't done it. If anyone i would be gradeful

Alegra
Suppose that a spreadsheet contains the following values. A1 6 B1 -4 C1 2 D1 3 Determine the value of cell E1 if it contains the following formulas. a) +A1 + B1 E1= 2 got that one right b) +4*A1 + 5*B1 got that one wrong c) +C1*(A1 +3*B1) got that one wrong d) +A1+...+D1 or ...

algebra
I have try this three different way and still can not come up with the correct answer, could you guide me the right way. suppose that a spreadsheet contains the following values, A6, B-4, C2, D3 it said to determine the value of cell E1 if it contains the following formulas. a...

Statistics
For the following set of scores: X Y 6 4 3 1 5 0 6 7 4 2 6 4 a) Compute the Pearson correlation. b) Add 2 points to each X value and compute the correlation for the modified scores. How does adding a constant to every score affect the value of the correlation? c)Multiply each ...

algebra
I have try this three different way and still can not come up with the correct answer, could you guide me the right way. suppose that a spreadsheet contains the following values, A6, B-4, C2, D3 it said to determine the value of cell E1 if it contains the following formulas. a...

algebra
solve the equation. Enter the answer as a comma-separated list. if there is no real solution, enter no real solution. x upper 2 - 10x+20=0

Accounting
In June 2011,Kelly purchased new equipment for $26000 to be used in her business.Assuming Kelly has net income from her business of $75000 prior to the deduction,what is the maximum amount of the cost recovery Kelly can deduct rounded to the nearest $,assuming she does NOT ...

math
michael purchased a certain number of one stock for a total of $176. the second stock was selling for $5 less per share. michael could have bough 5 more shares of the second stock for the same amount of money. how many shares of the first stock did michael purchase? how much ...

Math
In a sliding scale of 1 ticket cost $1.00 and 6 tickets cost $5.00 and 20 tickets cost $10.00, how many tickets should you get for $100.00?

Penn Foster
Dramatic irony means that

algebra
(AUB)NC 4,5,6,7,8,9,10 6,8

algebra
Let U = {4,5,6,7,8,9,10}, A = {4,5,6,7}, B = {4,5,8,9} and C = {6,8,10}

Probability
a and b ?????

Probability
èLMS = 0.1

Probability
èLMS= ?

Probability
please tell us the answer!!!!!!!!!!!!!!

Probability
1)0.0548 2) 3 3) 33 The answers are Checked are ok!

algebra
{1,2,8,9}

algebra
perform the given operation. Let U = {1,2,3,4,5,6,7,8,9,10} enter the answer {1,2,8} U 2,8,9}

algebra
1,3,5,7,9,

algebra
Perform the given set operation. Let U = {1,2,3,4,5,6,7,8,9,10}. Enter the answer as a comma-separated list. Enter EMPTY for the empty set. {3,7,9,} with a bold line over the top

chemisrty
consider a 50 ml solution of 0.55m cacl2 (aq). A solid piece of NaCl(s) with a volume of 14 cm3 is added to the aqueous calcium chloride solution. Calculate the chloride ion concentration in the mixture after the solid completely dissolves. Hint: You have to look up ...

geometry
two concentric circles with center E, AB = 40 CD = 24, CD is perpendicular to AE, and AB is tangent at C. FInd AF AB is chord in big circle. CD is chord in little circle and C is center of AB.

3 questions~~~
tbh warframe is a cool game ;3

Statistics
17

math
If a person currently consumes 3,500 calories per day and wants to cut back their daily amount by 250 calories each week, how many weeks will it take to reduce their daily caloric intake in half?

Business
Is this a better way to ask the question- Do you know what the 5 OMM costs of a resturant would be. I know what the 5 OMM costs are (raw materials and components costs, plant costs, labor costs, inventory costs, and distribution costs) but i am having trouble putting in a ...

Business
What are the 5 OMM costs of a restaurant?

Math
Can someone show me a model of what 8 divided by 0.3 would look like? Thanks

Social Studies
Read the speech below. It is a fictitious political speech by Peter, a candidate for the upcoming national election. Then answer the following questions: List all of the arguments in the speech List all of the non-arguments in the speech List all of the factual contents in the...

Probability
if anyone can provide the other answers .....

Probability
Can anyone please aswer the rest of the part??? I would be very gradeful

Probability
can anyone provide the answers??????

Probability
Can anonymous be more specific (please!)

probability
can anyone answer the rest of the problem set please?

science(check answers)
1.d 2. A 3.a 4.c 5., 100%

Chemistry
.298, .398, .00177

Math
The three interior angles of a triangle are in a 1:3:6 ratio. Find the measure of the largest angle?

Enghish Identify pronoun errors
Identify the type of pronoun error in the sentence. 1 Neither of we boys was going to the ball game. A)reference B)case C)agreement 2)The papers are on the desk that I corrected. A)reference B)case C)agreement 3)The traffic pattern on the new road is slowed down by too many ...

Enghish Identify pronoun errors
1)No one is expressing their opinion. A)reference B)case C)agreement 2)They say we will not be able to afford to own houses in a few years. A)reference B)case C)agreement 3)The pronoun those is an interrogative pronoun used with singular nouns .True/False

Enghish Identify pronoun errors
The traffic pattern on the new road is slowed down by too many traffic lights and left turns .It has to be improved A)reference B)case C)agreement A

Enghish Identify pronoun errors
Identify the type of pronoun error in the sentence. 1 Neither of we boys was going to the ball game. A)reference B)case C)agreement 2)The papers are on the desk that I corrected. A)reference B)case C)agreement 3)The traffic pattern on the new road is slowed down by too many ...

Physics
Two boxes of mass 7.40 and 7.00 kg are in contact and are accelerated across a horizontal surface by an force of 51.49 N applied parallel to the surface and pushing on the lighter box. The magnitude of the frictional force between the surface and the lighter mass is 9.26 N and...

MATH
BRIANNA HAS 4 PINK BRACELETS

MATH
1/8 OF TONY'S BOOKS ARE MYSTERY BOOKS

math
1/8 of Tony's are mystery books he had3 mystery books. How many books does he have in all?

Statistics
Determine the minimum sample size required in order to be 95% confident that our estimate is within 4% of the true percent of all US households using e-mail. Assume no prior estimate available.

English
who sound overconfident

English
If you drop your cell phone in water,

English
People who sound overconfident usually aren't. a. Adjective b. Adverb c. Noun

English
If you drop your cell phone in water, it is no longer covered by the warranty. a. Adjective b. Adverb c. Noun

chemistry
Calculate the pH for the hydrogen half-cell of the following voltaic cell if the observed cell voltage is 1.00 V. Mn|Mn2+(1.00 M)||H+(pH =?), H2(1.00 atm)|Pt

Chemistry
In a bomb calorimeter, a 6.50 g sample of octane (C8H18) is combusted. The combustion enthalpy for octane is -5.45 MJ per mol C8H18. The temperature change of the calorimeter is 16.5 oC. What is the heat capacity of the calorimeter?

Math
thank you

Math
In a recipe, we use 6 ounces of salt,32 ounces of butter and 48 ounces of flour. Write a reduced ratio for the quantity of butter to the quantity of flour,in a fraction form.

Trig
How do you solve this problem? y = 2sin 3x + 4sin 2x I haven't done these types of problems for awhile and have forgotten how to do them.

4th grade math
6/8=12/16so Mary shaded more

Physc
A symmetric projectile spends a total of 20 seconds in the air. It reaches a peak height of 8 meters. HOw long it takes to reach its peak height? The projectile has a range of 80 meters.What is its horizontal velocity? What is the projectile's horizontal acceleration? What...

Science
Which of the following is an impact of increased ocean acidification as caused by global climate change?

Accounting
61,682

AMERICAN HISTORY
IN WHICH OF THE FOLLOWING COLONIAL WARS DID THE AMERICAN COLONIST CAPTURE THE FORT AT LOUISBOURG AND BEGIN TO CRAVED DOMINATION OVER THE ENTIRE WESTERN REGION THAT INCLUDES THE OHIO VALLEY A.QUEEN ANNES WAR B.KINGS GEORGES WAR C.KING WILLIAMS WAR D.WAR OF SPANISH SECESSION

Geometry
A C E G

Algebra
please solve 27750.00 +200 x=312.50

MATH
Brandon has a 55-gallon fish tank. He estimates he can drain the tank at an average rate of 11 gallons per minute. In a linear model of this situation, x represents the number of minutes the tank has been draining. Relative to this situation, what does the y-intercept ...

math
1. for any sets X and Y, we define the symmetric difference X ∆Y by: X∆Y = (X - Y) ∪ (Y - X) = (X ∪ Y) - (X ∩ Y) Prove the following: -for all sets A,B and C, if A - (B ∩ C) = ∅ then A- C ⊆ B - for all sets A,B and C, if A ⊆...

math
1. for any sets X and Y, we define the symmetric difference X ∆Y by: X∆Y = (X - Y) ∪ (Y - X) = (X ∪ Y) - (X ∩ Y) Prove the following: -for all sets A,B and C, if A - (B ∩ C) = ∅ then A- C ⊆ B - for all sets A,B and C, if A ⊆...

math. Somebody help urgently please
1. for any sets X and Y, we define the symmetric difference X ∆Y by: X∆Y = (X - Y) ∪ (Y - X) = (X ∪ Y) - (X ∩ Y) Prove the following: -for all sets A,B and C, if A - (B ∩ C) = ∅ then A- C ⊆ B - for all sets A,B and C, if A ⊆...

Somebody please help urgently!
1. for any sets X and Y, we define the symmetric difference X ∆Y by: X∆Y = (X - Y) ∪ (Y - X) = (X ∪ Y) - (X ∩ Y) Prove the following: -for all sets A,B and C, if A - (B ∩ C) = ∅ then A- C ⊆ B - for all sets A,B and C, if A ⊆...

URGENT HELP WITH DISCRETE MATH PLEASE
1. for any sets X and Y, we define the symmetric difference X ∆Y by: X∆Y = (X - Y) ∪ (Y - X) = (X ∪ Y) - (X ∩ Y) Prove the following: -for all sets A,B and C, if A - (B ∩ C) = ∅ then A- C ⊆ B - for all sets A,B and C, if A ⊆...

URGENT! discrete math help please
1. for any sets X and Y, we define the symmetric difference X ∆Y by: X∆Y = (X - Y) ∪ (Y - X) = (X ∪ Y) - (X ∩ Y) Prove the following: -for all sets A,B and C, if A - (B ∩ C) = ∅ then A- C ⊆ B - for all sets A,B and C, if A ⊆...

math help
1. for any sets X and Y, we define the symmetric difference X ∆Y by: X∆Y = (X - Y) ∪ (Y - X) = (X ∪ Y) - (X ∩ Y) Prove the following: -for all sets A,B and C, if A - (B ∩ C) = ∅ then A- C ⊆ B - for all sets A,B and C, if A ⊆...

math
1. for any sets X and Y, we define the symmetric difference X ∆Y by: X∆Y = (X - Y) ∪ (Y - X) = (X ∪ Y) - (X ∩ Y) Prove the following: -for all sets A,B and C, if A - (B ∩ C) = ∅ then A- C ⊆ B - for all sets A,B and C, if A ⊆...

discrete math help please
1. for any sets X and Y, we define the symmetric difference X ∆Y by: X∆Y = (X - Y) ∪ (Y - X) = (X ∪ Y) - (X ∩ Y) Prove the following: -for all sets A,B and C, if A - (B ∩ C) = ∅ then A- C ⊆ B - for all sets A,B and C, if A ⊆...

math
1. for any sets X and Y, we define the symmetric difference X ∆Y by: X∆Y = (X - Y) ∪ (Y - X) = (X ∪ Y) - (X ∩ Y) Prove the following: -for all sets A,B and C, if A - (B ∩ C) = ∅ then A- C ⊆ B - for all sets A,B and C, if A ⊆...

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