Wednesday

July 23, 2014

July 23, 2014

Total # Posts: 543

**math **

What is the probability of flipping a coin two times and getting no heads? Would that be 1/2x1/2=1 so the probability is 1%?

**math**

a pair of dice are rolled and the sum on their upturned faces is recorded. What is the probability that the sum showing is 8, given that one die is showing a 5? Taking into consideration the numbers 1-6 on the second die wouldn't the probability be 1/6?

**math**

2 cards are drawn without replacement from an ordinary deck of 52 playing cards. What is the probability that both are spades if the first card drawn was a spade? I think you subtract out the first spade making the probability 12/51 since you take off the first card already tu...

**math**

Consider a bowl containing 36 different slips of paper. Ten of the slips of paper contain one of the set of digits 0 through 9 and 26 slips contain one of the 26 letters of the alphabet. Determine the probability of drawing one slip, what is P (even number or a vowel) I have 5...

**math**

Consider the experiment of selecting a card from an ordinary deck of 52 playing cards and determine the probability of a red card or a card showing a 5 is drawn. I figured the red cards would be 26/52 and the 5 would be 4/52. Would I add these two together for the answer of 28...

**statistics**

.59

**geology**

How old are the oldest meteorites yet studied and what is the minimum age of Earth since Earth is at least as old as the meteorites. We know the oldest meteorites contain equal amounts of uranium 238 and lead 206. Uranium 238 has a half life of 4.5 billion years. Would that me...

**geology**

2 trees grew near one another and have the same growth succession but one is larger than the other. The rate of growth of a tree is based on moisture, sunlight, temperature, and nutritious soil. Which of the four factors above is the reason for the difference in their sizes? (...

**PHYSICS**

is this from a webwork?

**math**

Between a bar graph and a line graph which one is more appropriate for displaying the number of individuals of dffering ages at a picnic. We are provided the ages brackets and frequency. I say it is a bar graph since line graphs are better for over time instead of a single eve...

**math**

A box and whisker graph showing beef hotdogs with high and low of 110-190 and meat hotdogs with high and low of 105-195 and poultry hot dogs with 85-170. This suggests that poultry dogs have fewer calories per dog than either beef or meat hotdogs. Yet, one dietician claims tha...

**Ms. Sue please**

Ms. Sue I had asked this of you already and you said a histogram would be best but I get confused on this and when I enter it into excel it comes out wrong. The data we have is for age 1-14 death rate per 1000 is 4.6, 15-24 rate is 6.2, 25-44 rate is 16.6, 45-64 rate os 8.8 an...

**math**

I get confused on this. What type of chart would I use that would show the relationship between age and deaths/1000 people from car accidents. We are provided age groupings of 1-14, 15-24, 25-44, 45-64, and 65+ with this we also have the death rates for each group per 1000. I ...

**math**

Describe the misuse or misinterpretation of statistics that may be involved. An ad for arcbrite claims that the detergent gets clothes twice as clean. I think it is wrong because there is no proof that the clothes get twice as clean. Also no clothes can be twice as clean they ...

**math**

Suppose that Helen buys three items for 47 cents each, five items for 71 cents each, and two items for 1.21 each. What was the average cost of all the items she bought? Would the answer be 74 cents?

**physics**

2. A hockey player is skating in a straight line at 1.5 m/s. He then increases his speed to 7 m/s in 3 s. What is his average acceleration during this 3 s?

**math**

Which graph is more appropriate for displaying the number of individuals of differing ages at a picnic? A histogram, bar graph, or line graph? Why would it not be appropriate to use the ones not picked? I am confused... I thought it would be bar graph as the most appropriate b...

**math**

Please explain how you would use a mathematical property to make the following number sentence always true: a x 9 = a x 7 + 2

**math**

A full container holds 5/8 of a gallon of liquid. If the container is 4/5 full, how much liquid is in the conatainer? And the answer must be explained using words.

**math 050**

you have to do the reciprocal of the second fraction, so it would be 5/4 and then multiply both fractions together. But don't forget to simplify if possible. :)

**math 050**

The second number, 2, is also a fraction, 2/1. You must then take the reciprocal of the second fraction and multiply both fractions together. Do not forget to simplify if possible.

**math 050**

Find a common denominator. It would be six and multiply both the numerator and the denominators by the # that will equal 6. then add.

**Englis**

Please give feedback on the following essay which is supposed to say if I agree or disagree that the pure in heart need no lawyers... Brandi Lubrano Torti English Period 2 2 November 2010 The Pure in Heart In Act III of the Crucible, Danforth states, “the Pure in heart ne...

**math**

An 8 ounce bottle of hairspray costs $3.66. Find the unit price in cents per ounce. would it be 0.4575 or 45.75 cents per ounce?

**math**

write as an addition problem (-21)-42 A) (-21)-(-42) B) (-21)+42 c) (-21)+(-42) D) none of the above I thought it would be c. Is this correct?

**math**

would rounding 255,116 with the first 5 underlined be 260,000?

**math**

Write the negation of the following: Every rectangle with 4 equal sides is a square. A) No rectangle with 4 equal sides is not a square. B) Every square with 4 equal sides is not a square. C)Every rectangle with 4 equal sides is not a square D) No square with 4 equal sides is ...

**math**

Estimate by rounding: -to the nearest thousand: 9637+6387+662+403=17089 going to nearest thousand would make this 17000 am i right?

**math**

Convert the base 10 number in the indicated base. 40 to base 2 I get so confused on how to do this.

**math**

Base 10 gets me so confused. How to convert 40 to base 2

**Chem**

weight of 1 gallon of hydrochloric acid

**math**

Stephen said that the ratio of his mortgage to the sales price of his house is 7 to 6. Is this reasonable? Explain your answer. I said yes it is reasonable. Stephen would pay 7 dollars for every 6 he borrowed. We don't know the sales price or how long the mortgage is and w...

**math**

A 6 pack of 4oz. containers of yogurt costs $2.99. What is the unit price in cents per ounce? Round to the nearest hundredth of a cent. I multiplied 6x4=24 then did 2.99/24=.1245833 then since needed to round to the nearest hundredth of a cent I came up with 0.1246 is this right?

**math**

an equivalent fraction to the fraction -6/54 would be a) -12/60 b) -7/72 c) -5/45 d) -1/10 would the answer be c?

**English**

Crucible (Again). The sites did not help. I had done a search already. Thanks anyway for the suggestion. Would you be able to give me input on the below Intro, and also help me next with a topic sentence. "The pure in heart need no lawyers(Crucible, Arthur Miller)as state...

**English**

In the crucible the pure in heart need no lawyers, agree or disagree, give me some input please!

**math**

If a person makes $30,000 in 2004 and the inflation rate is 4% annually, how much is this salary worth in the year 2008 (in terms of 2004 dollars)? What I have is 2004=30000 2005=30000x1.04=32448 then continuing through the years to 2008=35095.76 30000/35095.76x30000=25644.12 ...

**math**

x/3 = x+10/6

**chemistry**

ht is heat

**chemistry**

ht is heat

**chemistry**

Is there a reaction? 2 NaNO3 + ht →

**chem**

Can I2 oxidize metallic aluminum? Show the balanced chemical equation and the Eo values.

**chem**

Can I2 oxidize metallic aluminum? Show the balanced chemical equation and the Eo values.

**math**

A tangram is a geometric puzzle made from seven pieces that form a square. Trace the pieces, cut them out, and answer the following questions. The puzzle can also be seen on wikipedia web site. a. If the area of the entire square equals 1 unit, label each piece with its ration...

**math**

what are the possible advantages and disadvantages of using least common denominator when adding and subtracting fractions?

**math-ms sue please**

Ms Sue thank you for the help with my other word problem can you check this one for me? Write a word problem and find the solution to the equation. 1/2-2/3 THe answer is -1/6 and the word problem I created is: Janet put 6 suckers on a table. 3 suckers were watermelon and 3 wer...

**math**

for the following equations, write a word problem draw a picture, and find the solution to the equation. 5/12 - 1/3=? I know the answer is 1/12 but am stumped on how to write the word problem and draw a picture

**math**

find each quotient. 3/4 divided by -12

**math**

Use common denominators to compare the pairs of rational numbers. In each of the following identify which one is greater and explain how you know. 5/7, 5/8

**physics**

two student walk in the same direction along a straight path, at a constant speed one at 0.90m/s and the other at 1.90m/s assuming that they start at the same point and the same time, how much sooner does the faster student arrive at a destination 780m away?

**arithmetic**

5x + 15x =

**math**

Give a counterexample to show that each of the following generalizations about the set of integers {-3,-2,-1,0,1,2,3} is false. a) commutative property for subtraction b)associative property for subtraction

**US History**

45. all 46. all 47. C 48 C 49. A 50.D

**math**

Give a counterexample to show that each of the following generalizations about the set of integers {-3,-2,-1,0,1,2,3} is false. a) closure property for division b) distributive property for division over addition.

**math**

Give a counterexample to show that the following generalization about the set of integers is false. Closure property for division.

**math**

Show how to find the quotient 18 divided by (-6) by using the following: a) the idea of division as finding a missing factor. b) the procedures for integer division.

**math**

Does absolute value n+m= absolute value n + absolute value m for all integers n and m? If so give examples if not give a counterexample.

**art**

Looking on the national gallery of art website (or it can be seen by typing the name of the painting in any search box) review The Emperor Napoleon in His Study at the Tuileries by Jacques Louis David.Discuss the painting techniques and formal elements. I am confused on this. ...

**math**

You can use the prime factorization of a number, written as the product of powers of prime numbers, to find the number of factors the number has. First, express the number as a product of powers of prime numbers; for example, 36=2^2 3^2 (that is 2 squared and 3 squared)Then in...

**math**

Decide if the statement is true or false, tell why. 24 is a factor of 8

**math**

The product of two numbers is 180. The LCM of the two numbers is 60. What is the GCF of the two numbers? How do you know?

**math**

fill in the missing digits in as many ways as possible so the number will be divisible by 6. 3_2_ I am confused on this.

**math**

The following conjectures were made by students. Are they true or false? Give a counterexample if possible. Only half of the nonzero even numbers up to 100 are divisible by 4. My answer is that it is true. A number is divisible by 8 if it is divisible by 4 and divisible by 2. ...

**math**

The statement is If a number is divisible by 2 and by 3, then it is divisible by 6 and vice versa. Is this statement true? Give an example or counterexample. I believe it is true but am stuck on the counterexample/example.

**MATH**

evaluate the numerical expression. you may use a calculator, being sure to follow the order of operations. Round the answer to the nearest whole number. 129+ 17*35/14 the 129 is separate from the fraction

**math**

Statement: If a number is divisible by 2 and by 3, then it is divisible by 6 and vice versa. Is this statement true? Give an example or counter example.

**physics**

Final speed = Vi + a(t) Displacement = Vi(t) + 1/2a(t)^2

**math**

Name the property that justifies each step. [(2 * 100) + (3 * 10)]+ [(1 * 100) + (5 * 10)] = (2 * 100) + [(3 * 10)+ (1 * 100)] + (5 * 10)__________ property = (2 * 100) + [(1 * 100)+ (3 * 10)] + (5 * 10)___________ property = [(2 * 100) + (1 * 100)]+ [(3 * 10) + (5 * 10)]_____...

**algebra**

a. The sales representative informs you that there are 64 houses for sale with two floor plans still available. Use x to represent floor plan one and y to represent floor plan two. Write an equation that illustrates the situation.

**math-Ms. Sue**

ms Sue I was not sure how to do a response to you but my prior question was the following and you had answered to take the total number of students and make this the denominator and the history majors the numerator which I did and makes this 300/1225 so then to get the ratio ...

**math**

Ms. Sue- I have the total number of students is 1225 so then the answer would be 300/1225

**math**

the bar and graph shows the number of students by major in the college of arts and sciences. What is the ratio of history majors to the total number of students in the college? Math-200 history-300 english-400 science-150 other- 175

**math**

find the representation of the number 256 in base six

**math**

identify n(S) for the given set: S={5,10,15,20,25,30,...}

**10th grade**

--> BD bisects <adc, m<1=5x-3, and m<2=x+25. find the value of X

**math**

The number of dogs and chickens on a farm add up to 14. The number of legs between them is 36. How many dogs and how many chickens are on the farm if there are at least twice as many chickens as dogs?

**physics**

A horizontal force of 100 N is required to push a piece of furniture across a floor at a constant velocity. what is the net force acting on the furniture? How much is the friction force that acts on the sliding furniture? How much friction acts on the furniture when it is at r...

**English**

In the book, Pride and Prejudice,does Elizabeth marry Mr. Darcy in the end?

**math**

The 20 leaves of a 40-page book are numbered 1 through 40. The first and last leaves are ripped out. What is the sum of the remaining page numbers?

**Humanities**

What country is not a nation? I have already googled it so dont give me a link to all teh things google has to say. It doesnt help

**Humanities**

What country is not a nation?

**Sociology**

Failure to a[ated to culture

**US gov**

How has the tea party movement affected incumbent Republicans and Democrats in the primary races?

**Math**

Please I need help! The Acme Candy Company claims that 60% of the jawbreakers it produces weigh more than .4 ounces. Suppose that 800 jawbreakers are selected at random from the production lines. Would it be unusual for this sample of 800 to contain 418 jawbreakers that weigh ...

**science**

define the following words science?

**what can i compare middle school to?**

a fishtank

**geometry**

A 25-foot ladder is placed against a vertical wall of a building. The base of the ladder is 7 feet from the base of the wall. If the top of the ladder slips 4 feet, how many feet will the base of the ladder slide?

**4th grade**

16

**chemistry**

Are you looking for INTERmolecular force or INTRAmolecular force? Metal and nonmetal would be an ionic bond.

**chemistry**

Melting pt = energy required to break the chemical bond. I believe this would go by molecular weight. They are all ionic bonds. Find the mw of each and choose the largest.

**biology**

how do some cells become brain cells and others become skin cells when the DNA in all of the cells is exactly the same

**Business**

[pgpiuooiu[goi';kbn'[o[[[[[[[[[[[[[[[[[[[[[iguiyf9u

**10th grade Math**

puipoupoip

**math**

how could thinking about 90 tens help you find 1901-297?

**social studies**

Why did the us need a protective tariff

**marketing- **

Factors Alex should consider include external influences (i.e., culture, subculture, demographics, social status, reference groups, family, and marketing influences) and internal influences (i.e., perception, learning, memory, motives, personality, emotions, and attitudes). Th...

**Spanish**

are these the correct verb tense and conjugations? i have to use either preterite or imperfect. 1. they were looking - buscaban 2. they talked - hablaban 3. they thought - piensaron 4. they liked - gustaron 5. they needed - necesitaron 6. they asked - pidieron 7. they were rea...

**Psychology**

You and Taye are discussing the causes of obesity. As an informed person, you have to disagree with your friend when he asserts that a major factor in obesity is A. Gender B. physiology C. environment D. genetic inheritance

**chemistry**

A solution containing 26.05 mg of an unknown protein per 23.5 mL solution was found to have an osmotic pressure of 3.75 torr at 44 C. What is the molar mass of the protein?

**chemistry**

A solution containing 26.05 mg of an unknown protein per 23.5 mL solution was found to have an osmotic pressure of 3.75 torr at 44 C.

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