Monday
July 28, 2014

Posts by Anonymous


Total # Posts: 70,590

Algebra
I mean a group at my gym.

Algebra
So if I interviewed a group of people under 10 and interviewed all people in the group, would that meet the requirements?

Algebra
In this activity, you will design and conduct a survey. Select a topic for your survey. d. Are the people you surveyed representative of the group you want to study? What does D mean?

Science 207
3. How would the “weather” be affected if the water was at a decreased temperature? What about at an increased temperature?

trigonometry
A sled travels from point A at the top of a hill to Point B at the bottom. If the distance from point A to point B is 120 m and the vertical change is 50 m, find the angle of depression to the nearest degree.

Ed Tech
Thanks!

Ed Tech
Is there anything more?

Ed Tech
How does technology impact 21st century skills?

algebra
total cost=2.30+1.2m 1.30m=2.30+1.2m .10m=2.3 m=23 miles check that

Ed Tech
What were the tube computers of 1946-1958 used for?

need help1 what function to use? math
I think it is tan3=30000/l ,l =30000/tan3 theni thnk u can cntinue

physics
An athlete stretches a spring an extra 15.9 cm beyond its initial length. How much energy has he transferred to the spring

statistics
Fill in the blank in the sample below if the variables are independent in the sample like product do not like product old 10 7 young 40

7th math
If the actual figure is a rectangle that is 120 meters by 400 meters, what are the dimensions of a scale drawing in centimeters?

Technology
What are some examples of video effects, such as sepia?

Precalculus
Transform the quadratic equation to a standard form. 4x^2-y^2-24x-10y+11=0 My answer: 4(x-3)^2 - (y+5)^2 = 0 Therefore, this is a degenerate conic section, right?

Precalculus
I know I posted this already but.. I don't understand what exactly is the answer, since the answer key shows the intersection of the circle and hyperbole at (-5,0) What about (7.5,0)???? By the way the graph has one intersection point... How do you know the correct answer?...

business communication
I wanted to welcome you asap to our little family here in the states. Its high time we shook hands in person and not just across the sea. Im pleased as punch about getting to know you all,and I for one will do my Level best to sell you on america rewrite in hong kong english

Technology
What are video effects?

Algebra 1
Simplify the following rational expression: 25 - x^2/x^2 -3x - 10

Math
Marvin was supposed to make three payments of $2000 each—the first one year ago, the second one year from now, and the third three years from now. He missed the first payment and proposes to pay $3000 today and a second amount in two years. If money can earn 4.5% compound...

Algebra 1
Answer: 3w+7

Algebra 1
Simplify the following rational expression: 6w^2 + 11w - 7/6w - 3

Precalculus
Calculate solution set. x^2+4y^2=68 xy=8

Precalculus...repost.. The tutor didn't quite answ
Calculate the solution set. x^2+y^2+8x=-15 9x^2+25y^2=225 My work: I did elimination...multiplied -25 to the top equation and got..... -16x^2-200x-600...I then used quadratic formula ... And got -7.5 and -5..... Is -7.5 an EXTRANEOUS SOLUTION because when I plugged -7.5 in for...

Math helpppp
Answer

Math
An ordinary (fair) die is a cube with the numbers 1 through 6 on the sides (represented by painted spots). Imagine that such a die is rolled twice in succession and that the face values of the two rolls are added together. This sum is recorded as the outcome of a single trial ...

math
if there are 45 pieces of fruit and there are twice as many bananas as there are apples. How many of each kind of fruit are there?

Precalculus
Calculate the solution set. x^2+y^2+8x=-15 9x^2+25y^2=225 My work: I did elimination...multiplied -25 to the top equation and got..... -16x^2-200x-600...I then used quadratic formula ... And got -7.5 and -5..... Is -7.5 an EXTRANEOUS SOLUTION because when I plugged -7.5 in for...

Grade 10 English
i need 3 points of tragedy between the book the Stone carvers and the great gatsby.... i need to write a compasrion essay of tragedy between the two books. please and thank you

maaattthhhh
What are the mean, median, mode, and range of the data set 18, 19, 20, 21, 23, 26, 26, 26? mean = 22.4; median = 22; mode = 26 mean = 22.4; median = 26; mode = 22 mean = 26; median = 22.4; mode = 24 mean = 23.4; median = 22; mode = 26 2. Given the data 21, 13, 13, 37, 13, 23, ...

economics
A New Hampshire resort offers year-round activities: in winter, skiing and other cold-weather activities; and in summer, golf, tennis, and hiking. The resort’s operating costs are essentially the same in winter and summer. Management charges higher nightly rates in the wi...

physics
4.95 raise to power 20

physics
two forces of magnitude 8N making an angle of 30 and 120 with +xaxis . FInd the y component of reultant

HELP MATH !!
the 2nd question is a ?

Math
2.45?

Math
20. The time t required to drive a certain distance varies inversely with the speed, r. If it takes 2 hours to drive the distance at 67 miles per hour, how long will it take to drive the same distance at 55 miles per hour? a. about 1.64 hours b. about 134.00 hours c. about 2.4...

Science
Five groups of rats are fed identical diets except for the amount of vitamin A that they receive. Each group gets a different amount. After three weeks on the diet, the rats are weighed to see if the amount of vitamin A received has affected their weight. Independent Variable:...

Science
No duh. I did. How's that supposed to help me? -.-

Science
What about that?

Science
12. Justin usually blows his nose using Kleenex tissues. His snot keeps leaking through the tissue. He decided he's going to create and experiment to find out if there is something better. a. type of tissue b. Justin c. amount of tissue d. mess of the snots the tissue can ...

Math
2. B

Science
5. Justin usually blows his nose using Kleenex tissues. His snot keeps leaking through the tissue. He decided he's going to create and experiment to find out if there is something better. What is 1 constant? a. type of tissue b. Justin c. amount of tissue d. mass of snot t...

Science
How can you measure the angle of incidence and refraction with a protractor? If not, what are some tools I can use which are found at home?

2 questions?
What is the surface area of a sphere with a radius of 4 meters rounded to the nearest square meter? 50 m2 101 m2 201 m2 *** 268 m2 What is the volume of a sphere with a radius of 4 meters rounded to the nearest square meter? 67 m3 201 m3 268 m3

Bar Graphs
Do the bars on bar graphs need to have spacing between them or can they be right next to each other?

Algebra
x(yp) =

economics
what are welfare payments or consumer subsidies

Physic
The position of a mass on a spring is given by x = (7.6 cm) cos [2 π t / (0.82s)]. Where is the mass at t = 3.1 s? (Answer: 1.45cm) Answer is provided above. Please show all work on how to get the answer. Thank you.

Math
In this activity, you will design and conduct a survey. Choose a topic for your survey. 1. Collect your data. 2. Summarize the results with a graph and a description. When they say "Summarize the results with a graph," do they mean that I display the results with a h...

math
A bank wishing to determine the average amount of time a customer must wait to be served took a random sample of 100 customers and found that the mean waiting time was 7.2 minutes. Assuming that the population standard deviation is known to be 15 minutes, find the 90% confiden...

LA
What are some Disney movies that portray the American dream?

Sports
Are board games sports?

Physic
The maximum speed of a mass attached to a spring is vmax = 0.438 m/s, while the maximum acceleration is 1.53 m/s2. What is the maximum displacement of the mass? (Answer: 0.125m) Answer is provided above. Please show all work on how to get the answer. Thank you.

English
Which of these sentences has a missing antecedent? Although my sister is a swimmer, I don't know anything about it. When Trina and Rachel went to the mall, she drove.

math
Explain Yvonne's mistake in the following problem. 8x + 6x + 2 = 16x

statistics
A bottling commpany produces bottles that hold 10 ounces of liquid . Periodically, the company gets complaints that their bottles are not holding enough liquid. To test this claim, the bottling company randomly samples 25 bottles and finds the average amount of liquid held by ...

math
Mr chen deposits a certain amount in a bank if the interest of the bank decreased from 3.75% to 3.5% per annum mr chen's interest decrease by 50$ in a year find the sum of amount he deposits

Math
A stadium manager has signed five acts this year with a combined revenue projection of $1,000,050. The cost for these is expected to average $85,000 per act. How much profit margin does the stadium expect this last year?

Algebra
(4j^2)^2

Algebra
Factor 3x^2 + 2x - 13

Statistics
Coaching companies claim that their courses can raise the SAT scores of high school students. But students who retake the SAT without paying for coaching also usually raise their scores. A random sample of students who took the SAT twice found 427 who were coached and 2733 who...

CHEMISTRY
250

Business
Are there any similarities between the characteristics demanded of an entrepreneur and those of a professional athlete? Would an athlete be a good prospect for entrepreneurship? Why or why not? Do you agree with authors Coté and Piff that those of higher social class ha...

chem
18.024l

chem
The VoLume of a gas is 15.0 L when the temperature is 75.0°C. If the temperature is changed to standard temperature without changing the pressure, what is the new volume?

Help me? Thanks~
Okay. sorry/

My Answers.
1.A 2.C 3.D 4.D 5.B 6.B 7.D 8.A 9.C 10.B 11.C 12.C 13.A

Science--worked hard, check my answers sum1?
1. What do bone marrow and the epidermis have in common? They are both sites of new cell formation. They both contain structures that assist the body in cooling down if overheating occurs. They both contain or are associated with sensory neurons. They are both involved in was...

Chemistry
The heat of combustion of methane is -890 kj per mole. How much heat will be produced in the combustion of 6.25 mol of methane?

Algebra
An electronics store is deciding how to price one of its products. The equation P = -25d^2 + 500d predicts the total profit P as a function of the product's price in dollars d. What price will produce the highest total profit?

English
No one saw Dad and me waiting in the queue. No one saw Dad and I waiting in the queue. Which sentence is correct?

Math
Your credit card has a balance of $1000 and an interest rate of 21%. Each month you make the minimum requirement of $20. During January 10 through February 9 billing period you pay the minimum required payment on january 25th. find the average daily balance, finance charge, an...

Check my answers? thank you.
I think you're guessing. What's the function of the skeletal system? To move the body, right? For 6, not ALL infectious agents are living. What about viruses?

Check my answers? thank you.
I said 2 is wrong, not 1. 6 is not A. Aren't bacteria living organisms? Perhaps you should do a bit more research on viruses.

Check my answers? thank you.
2 and 6 are wrong.

Algebra
What are the solutions of the equation 18x^2 - 25x - 3 = 0? A. -1/9,3/2 B. 9, 3/2 C. -9,2/3 D. 1/9, -3/2

algebra
Use a calculator to evaluate an ordinary annuity formula A = m 1 + r n nt − 1 r n for m, r, and t (respectively). Assume monthly payments. (Round your answer to the nearest cent.) $150; 5%; 40 yr A = $

Algebra
You take a three question true-or-false quiz. You guess on all the questions. What is the probability that you will get a perfect score?

Science--check my answers.
1. Which of the following effects would you expect if red blood cells were shaped like neurons? They would not be able to move as easily through capillaries. **** They would more easily carry out gas exchange in the alveoli. They would not need to be transported through the b...

Precalculus
Thank you, Reiny! :)

Precalculus
Find the values of x and y. Matrices.. [-4 2 3 5 3 5 2 -3 1] TIMES [2 x 5] EQUALS [9 38 y] It is difficult for me to type the matrices in but.... The first matrix is 3x3 consisting of -4,2,3 in the first row.. 5,3,5 in the second row ......2,-3,1 in the third row... Then multi...

algebra
A video rental company offers a plan that includes a membership fee of $6 and charges $2 for every DVD borrowed. They also offer a second plan, that costs $48 per month for unlimited DVD rentals. If a customer borrows enough DVDs in a month, the two plans cost the same amount....

Math
A video rental company offers a plan that includes a membership fee of $6 and charges $2 for every DVD borrowed. They also offer a second plan, that costs $48 per month for unlimited DVD rentals. If a customer borrows enough DVDs in a month, the two plans cost the same amount....

math
A section of a hiking trail begins at the coordinates (-7, 5) and follows a straight path that ends at the coordinates (3, 9). What is the rate of change of the hiking trail?

Algebra
Suppose you roll a red number cube and a yellow number cube. What is the probability of rolling any matching pair of numbers? (Hint: Add the probability of each of the six matches.)

health
What is bone strengthening?

Science help!!!!
cvbhytresdfg

math
What does the word rational coordinates Mean? What are they used for and what is a real world problem that can help me understand it?

Science/Health
Correct.

Algebra
A bag holds 20 yellow mints and 80 other green or pink mints. You choose a mint at random, eat it, and choose another. Find the number of pink mints if P(yellow then pink) = P(green then yellow). What is the least number of pink mints if P(yellow then pink) = P(green then yell...

History of KKK
the history of the KKK and their activities in the postwar South a. What conditions led to the formation of this group? b. What were their tactics? c. What was the result of the activities?

Spanish
a. crowds of people -3 b. the members of the fraternity, who perform the authentic act of penitence --6 c. the float which carries La Virgen -7 d. musical compositions - 1 e. members of the fraternities that make up the procession. -4 f. a float or portable platform and all th...

Statistics
A confidence interval for a population mean has a margin of error of 3.1. a)Determine the length of the confidence interval. b)If the sample mean is 56.7, obtain the confidence interval.

fifth grade math
susan picked a watermelon that weighed 8/15 lb. larry a watermelon that weigh 1/4 as much as Susans. how muchdid larrys weigh

Movie comprehension
I missed class and did not watch " Never Cry Wolf". So .... What did the wolf do to Tyler's suitcase? How did Tyler respond to the wolf's actions and what was the meaning of his responses?

Biology - Help!!
Did u get the answers

math
Fun & Games is having a sale. There is a special price for games sold in packs. Pack A cost $ 41.70 and includes Feisty Fox, Dolphin Derby, and Rat Race. Pack B cost $ 37.95 and includes Rat race and two Feisty Fox games. Pack C cost $ 26.75 and includes Dolphin Derby and Feis...

Precalculus
It's asking for general form, not slope-intercept

Precalculus
My teachers answer was 5x+8y=32 Your answer is clearly wrong..

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