Friday

January 20, 2017
Total # Posts: 1,440

**Algebra 2**

Exponential Notation Simplify. (-2)^0-(-2)^3-(-2)^-1+(-2)^4-(-2)^-2 I tried solving this problem a few times and kept getting random answers. The answer in the book says that it is 25 1/4 I do not understand how you get that answer. Thanks For Your Help

*September 11, 2011*

**Algebra 2**

ohh okk thanks so much :)

*September 10, 2011*

**Algebra 2**

thanks so much :)) That was really helpful. Just one quick question. How did you get 15/16?

*September 10, 2011*

**Algebra 2**

Exponential Notation Evaluate the following: x^3+y^-2 for x=-3 and y=4 I don't understand how to solve this equation. I solved it and got -11 as my answer but the books answer is -26 15/16 Thanks For Your Help

*September 10, 2011*

**Algebra 2**

Thanks so much :))

*September 10, 2011*

**Algebra 2**

Exponential Notation Evaluate the following: x^-4 for x=2 I understand the -(2x2x2x2) equals 16 but the answer in the book says 1/16 How do you get 1/16?

*September 10, 2011*

**History**

What was unique about Native Americans 1600? I know that they were one of nature, they were in tribes and had lots of traditions but these don't really seam unique

*September 10, 2011*

**Texas History**

Thank you!

*August 31, 2011*

**Texas History**

What route would you take to get from Corpus Christi, TX to Beaumont, TX? You go like, I-37 N and then I-10 W, right?

*August 31, 2011*

**Texas History**

So.... You would go on I-10, and then get onto i-37, and keep going to Corpus Christi, Right? Thanks!

*August 31, 2011*

**Texas History**

What route would you take to get from El Paso, TX to Corpus Christi, TX? Simple, please. I need it for a project.

*August 31, 2011*

**Science**

What does scientific inquiry mean?

*August 31, 2011*

**math**

oh yeah there was also no shaded parts just missing parts.

*August 30, 2011*

**math**

oh thank you i will definitly do that next time, you guy were taking a bit too long to answer so when my dad got home i asked him to help me.

*August 30, 2011*

**math**

oh okay. but how do you post an example?

*August 30, 2011*

**math**

how do you subtract the area of a part to find the area of a figure? PLEASE HELP!!!! whoever answers this please type an answer nicely

*August 30, 2011*

**math**

f(x)=(x+1)^3-2 1. Describe the long term behavior of this function. Give the power function that f resembles. 2. Determine the number of turning points f has.

*August 30, 2011*

**Math Pre Algerbra**

4+3[8-3*2+4(5-1)] I got 68

*August 28, 2011*

**Math Pre Algerbra**

How did the teacher get this answer for this problem? Okay so heres two questions... first 24/4(2) = 12 and i believe he said he didn't use the (2) but... when i ask a question about a question like that they use the 2 like this 9*3 - 2(5) = 17

*August 28, 2011*

**Math Pre Algerbra**

How did the teacher get this answer for this problem? Okay so heres two questions... first 24/4(2) = 12 and i believe he said he didn't use the (2) but... when i ask a question about a question like that they use the 2 like this 9*3 - 2(5) = 17

*August 28, 2011*

**pre-algrbra**

need help with math problem 15-2(5-2) Answer=10

*August 28, 2011*

**math**

Write down an expression for the number of binomial paths which cross a rectangle from the point (0,0) to the point (3n,2m), with n,m > 1, but which are constrained to have a vertex on the point (n,m)?

*August 26, 2011*

**Math Pre Algerbra**

The Number of yards in f feet i think it is 1f if not explain by the way 1f = 1 * f

*August 25, 2011*

**Math Pre Algerbra**

Need help with Algerbra question two-thirds of a number e 2/3 * e i think this is the answer please explain how to do if not

*August 25, 2011*

**7th grade math**

16

*August 25, 2011*

**Math**

Suppose that people's heights (in centimeters) are normally distributed, with a mean of 165 and a standard deviation of 6. We find the heights of 80 people. (a) How many would you expect to be between 158 and 172 cm tall

*August 24, 2011*

**social Studies**

What are some good questions to ask about latitude and longitude and the prime Meridian and the Equator? Pease have at least 3 good questions. Pease help me. This is worth 100 points so please help!

*August 24, 2011*

**statsitsc**

b. The graph of a normal distribution is bell-shaped. (True/False)

*August 20, 2011*

**statistics**

A normal distribution is any distribution that is not unusual. (True/False)

*August 20, 2011*

**statitics**

Assume the body temperatures of healthy adults are normally distributed with a mean of 98.20 °F and a standard deviation of 0.62 °F (based on data from the University of Maryland researchers). a. If you have a body temperature of 99.00 °F, what is your percentile ...

*August 20, 2011*

**statistics**

Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the following quantities: Suggest you make a drawing and label first… a. Percentage of scores less than 100 b. Relative frequency of...

*August 20, 2011*

**statistics**

1. Which of the following statements are correct? a. A normal distribution is any distribution that is not unusual. (True/False) b. The graph of a normal distribution is bell-shaped. (True/False) c. If a population has a normal distribution, the mean and the median are not ...

*August 20, 2011*

**statistics**

The heights of American women aged 18 to 24 are normally distributed with a mean of 66 inches and a standard deviation of 2.5 inches. In order to serve in the U.S. Army, women must be between 57 inches and 79 inches tall. What percentage of women are ineligible to serve based ...

*August 19, 2011*

**science**

help me to understand how to determine the volume in a partial graduated cylinder etc., 45 &40

*August 19, 2011*

**algebra**

Make a 5% offer on a Volkswagen New Beetle that has a sticker price of $22,120 and a dealer cost of $20,868

*August 9, 2011*

**Finance 200**

The treasurer for Thornton Pipe and Steel Company wishes to use financial futures to hedge her interest rate exposure. She will sell five Treasury futures contracts at $105,000 per contract. It is July and the contracts must be closed out in December of this year. Long-term ...

*August 7, 2011*

**physics**

assume that a hailstone at 0 degrees celsius falls through air at a uniform temperature of 0 degrees celsius and lands on a sidewalk also at this temperature. from what initial height must the stone fall in order to entirely melt upon impact?

*July 27, 2011*

**the staff study unit**

day care

*July 24, 2011*

**Chem**

How do I do this problem Assume you dissolve 2.56 g of malic acid, C4H6O5, in half a liter of water (500.0 g). Calculate the molarity, molality, mole fraction, and weight percent of acid in the solution. (Assume the final volume of the solution is 500. mL)

*July 24, 2011*

**Algembra**

a train leaves a station and travels north at 85 km/hr. Four hours later, a second train leaves on a parrallel track and travels north at 125km/hr. How far from the station will they meet?

*July 14, 2011*

**pre calc.Math**

Please help me any one of these please! Thank You to any one r=2-6 cos(θ) convert this polar coordinate equation into an equation in rectangular coordinates(x,y) given (-8,8) convert this point into polar coordinates with 6 >= 0 and 0<=θ<= 2pi given x^2+ (y-...

*July 12, 2011*

**physics**

A 6-kg bowling ball rolling at 5 m/s strikes a stationary 4-kg bowling ball. If Ball #1 is moving forward at 2 m/s after the collision, what is the speed and direction of Ball #2? What is the impulse of the system? If the collision last for .5 seconds, how much force is exerted?

*June 29, 2011*

**physics**

A 4.5-kg ham is thrown into a stationary 15-kg shopping cart. At what speed will the cart travel if the ham had an initial speed of 2.2 m/s? If the ham hits the cart with 2N of force, how long did the collision between the two last?

*June 29, 2011*

**Experiment**

thank you

*June 14, 2011*

**Experiment**

The question is how do I design a basic experiment that would allow us to establish a cause-effect relationship between number of hours worked per week and lower college graduation rates? It must have these components: a manupulated independent variable, a dependent variable, ...

*June 14, 2011*

**Experiment**

the experiment that would allow establishing cause-effect relationship between number of hours worked per week and lower college graduation rates has to have these components: a manipulated independent variable, a dependent variable, control for extraneous variables, an ...

*June 14, 2011*

**Experiment**

I want to design a basic experiment that would allow establishing a cause-effect relationship between number of hours worked per week and lower college graduation rates.

*June 14, 2011*

**Algebra**

Write the solution in interval notation x<5 and x>=-2. ) What would the compound inequality look like? Thanks for the help!

*June 9, 2011*

**Algebra**

Determine whether the given numbers are solutions of the inequality. y-8>2y-3 4, -11, -19, -1 (are any of these numbers a solution to the inequality?)

*June 9, 2011*

**penn foster**

industrial activities operates 5 days per week with a daily payroll of $4000. employees are paid every saturday for the workweek just completed(monday to friday). the last day of the month is wednesday, mar 31. what is the amount of wages expense recorded on the next payday, ...

*June 7, 2011*

**Science**

What is the kinetic energy of a 28 kg dog that is running at a speed of 7.0 m\s(about 16mi\h)?

*June 2, 2011*

**arithmetic**

if ratio is 5:12 and 12 equals 136 what does 5 equal?

*May 31, 2011*

**Algebra**

Write the equation of the line containing the given point and parallel to the given line. The equation of the line is y= ?... 1. Express your answer in the form y=mx+b. (7,8); x+7y=6 2. Express your answer in the form y=mx+b. (-4,8); 8x=7y+9 3. Express your answer in the form ...

*May 25, 2011*

**Algebra**

1. Express your answer in the form y=mx+b. (7,8); x+7y=6 2. Express your answer in the form y=mx+b. (-4,8); 8x=7y+9 3. Express your answer in the form y=mx+b. (8,9); 5x+y=9 4. Express your answer in the form y=mx+b. (2,-6); 8x+7y=5 I don't get ANY of this at all! Please ...

*May 25, 2011*

**Algebra**

Find an equation of the line having the given slope and containing the given point. m=7/8, (5,-6) The equation of the line is y=?

*May 24, 2011*

**Math**

fernando's soccer team played a good season. Finishing with 16 wins and 4 losses. Ties are not allowed. If winning or losing a game was equally likely, what is the probability that fernando's team ended up with this record? My Answer: C(20,16)(.5)^16(.5)^4 =.00462 =.46...

*May 6, 2011*

**math**

Answer= 14/18 and 3/18

*May 5, 2011*

**math**

Need to write an equivalent fraction for each, using the least common denominator. 1. 7/9, 1/6 ANSWER=12/18,14/18

*May 5, 2011*

**math**

1 on each side of the rectangle, but that would mean that it is a square.

*May 4, 2011*

**math**

using only whole numbers, how can you draw three rectangles with a perimeter of 12 units?

*May 4, 2011*

**History**

Thank you

*May 2, 2011*

**History**

How did Spain's American colonies help make it the richest, most powerful nation in the world during the 16th century??

*May 2, 2011*

**History**

Thank You

*May 2, 2011*

**History**

The spanish conquest in the americas from 1492-1580

*May 2, 2011*

**History**

What would be some main key points that would relate to the social life during the Spanish Conquest?

*May 2, 2011*

**social studies**

what is capitol

*May 2, 2011*

**English**

Need to find the predicate Adjective. 1. The valley in Johstown Pennsylvania was very deep. PA=deep 2. The hills around Johstown were high. PA=high 3. The lake above Johnstown seemed unusally full. PA=full 4. The concrete dam appeared weak. PA= weak 5. That day May 31, 1889 ...

*May 1, 2011*

**6th grade math**

There are three crowns in the royal cabinet: One for the King, One for the Queen, and one for the Princess. The king's circumference was 21.98 in, the Queen's circumference was 43.96 cm and the Princess' circumference as 392.5 mm. What are the Diameters's for ...

*April 27, 2011*

**6th grade math**

Ther jester was juggling in the medieval fair, and all three where different sizes and colors. The jester wanted to put them in order from least to greatest. The red ball had a diameter of 100 mm the green ball had a radius of 4 cm and the yeallow ball had the radius of 6.5 cm...

*April 27, 2011*

**statistics**

the organizer of a television show must select 5 people to partipate in the show. the participants will be selected from a list of 30 people who have written in to the show. if the participants are selected randomly, what is the probability that the 5 youngest people will be ...

*April 21, 2011*

**English**

Need to underline the noun or pronoun and circle the word that modifies it.... 1. Countless pioneers crossed this vast continent. Noun=pioneers Adj=countless, Noun=continent Adj=this,vast 2. Some people wanted rich, productive farmland. Noun=people Adj=some, Noun=farmland Adj=...

*April 18, 2011*

**Math Binomial theorem**

Thank you very much!

*April 17, 2011*

**Math Binomial theorem**

I'm preparing for a test and one of the questions in my text is as follows: In a trivia contest,Sam has drawn a topic he knows nothing about, so he makes random guesses for the 10 T/F questions. Use the binomial theorem to help find a)the number of ways Sam can answer the ...

*April 17, 2011*

**Math**

How many pounds of pressure does a 25 pound baby weigh in a head on collision when the car is traveling at 25 miles per hour. (and hits a stationary object) The assignment is to research car crash scenarios but I don't know a formula to figure this out.

*April 16, 2011*

**Business Math**

What amount must be paid to settle an invoice of $1200 dated Nov.28 , terms 3/10, n/30 if the invoice is paid on Dec. 3? I got $1164. Am I right? Thanks

*April 15, 2011*

**child care**

yes, part 2. its harder then the other.

*April 14, 2011*

**child care**

When preparing an environment for school-aged children, the caregiver should ensure that the A. environment resembles their school setting. B. children are continually intermixed with the younger children. C. outdoor area allows them to continually challenge their physical ...

*April 14, 2011*

**childcare**

BRANDY i think its b

*April 14, 2011*

**physics**

An air compressor is a device that pumps air particles into a tank. A particular air compressor adds air particles to its tank until the particle density of the inside air is 40 times that of the outside air. If the temperature inside the tank is the same as that outside, how...

*April 14, 2011*

**Math**

Thanks a lot.

*April 14, 2011*

**Math**

A gift store stocks baseball hats in red or green colors. Of the 35 hats on display on a given day, 20 are green. As well, 18 of the hats have a grasshopper logo on the brim. Suppose 11 of the red hats have logos. How many hats are red, or have logos, or both? The answer in ...

*April 14, 2011*

**physics**

The density of gold is 19 times that of water. If you take a gold crown weighing 24 N and submerge it in water, how much upward force must you exert on the submerged crown to keep it from accelerating?

*April 13, 2011*

**Grammar**

Thank you

*April 13, 2011*

**Grammar**

words that rhyme with soon

*April 13, 2011*

**physics**

A dish of hot food has an emissivity of 0.42 and emits 15 W of thermal radiation. If you wrap it in aluminum foil, which has an emissivity of 0.06, how much power will it radiate?

*April 12, 2011*

**physics**

If a burning log is a black object with a surface area of 0.35 m2 and a temperature of 800 ˚C, how much power does it emit as thermal radiation?

*April 12, 2011*

**physics**

To find delta P, use (deltaP)=8(pi)(eta)(L*v)/A Where eta is the coefficient for viscosity. For 40C water, it is .07e-3 Pa*s.

*April 12, 2011*

**physics**

How much force is the air exerting on the front surface of the book with dimensions 19 x 27 cm. Assume atmospheric pressure equal to 100,000 Pa.

*April 12, 2011*

**physics**

An air compressor is a device that pumps air particles into a tank. A particular air compressor adds air particles to its tank until the particle density of the inside air is 40 times that of the outside air. If the temperature inside the tank is the same as that outside, how ...

*April 12, 2011*

**physics**

If you submerge an 5-kg log in water and it displaces 6 kg of water, what will the net force on the log be the moment you let go of the log?

*April 12, 2011*

**physics**

The density of gold is 19 times that of water. If you take a gold crown weighing 24 N and submerge it in water, how much upward force must you exert on the submerged crown to keep it from accelerating?

*April 12, 2011*

**Math**

find the equation of the line tangent to 2xy=piesin y at the point (0,2pie)

*April 12, 2011*

**stereotypes in psychology**

african americans are good dancers blonds have more fun

*April 11, 2011*

**analogies**

good job!

*April 11, 2011*

**percentile rank**

i would like to able to find the percentile rank of a z score 0.313152 can someone tell me how to do this.

*April 9, 2011*

**maths**

5/6*(18/25-9)

*April 5, 2011*

**Business**

In Government Contracts is fair and reasonable pricing is more judgment-based or more market-based -why is that?

*April 5, 2011*

**math**

Need to write ratio 3 different ways. 1. 6 pencils to 4 erasers ANSWER= 6/4, 6 to 4, 6:4 Need to write an equivalent ratio for each. 1. 9/36 ANSWER= 1/4, 9 to 36, 9:36

*April 4, 2011*

**Biology**

What happens if you increase biodiversity? Decrease it?

*April 3, 2011*

**English**

Need to decide which form is needed:present participle, past, past participle of each verb in parentheses. 1. Nora (see) the toy exhibit at the museum. ANSWER=Seen 2. People (speak) French in parts of Canada. ANSWER=spoke 3. That character has (say) "Good Grief" ...

*April 3, 2011*