Sunday

February 14, 2016
Total # Posts: 624

**Science **

Two objects with charges of +1.0 and -1.0 are separated by 1.0km. Find the magnitude of the force that either charge exerts on the other.
*January 26, 2016*

**Science **

Two objects with charges of +1.0 and -1.0 are separated by 1.0km. Find the magnitude of the force that either charge exerts on the other.
*January 25, 2016*

**Math**

ewrite each equation below. Then solve your new equation. Be sure to check your solution using the original equation. 4/x=x+3
*January 11, 2016*

**Math**

Where did the 10 come from ? 3^2 is 9
*January 6, 2016*

**Math**

The parabola y=x^2 How can that equation be changed to shift the parabola three units to the left and five units down
*January 6, 2016*

**Math **

The price of gas went up by 0.5% last month. Suppose gas currently costs $2.44 a gallon. If the price of gas continues to increase at this rate. What will it cost one year from now? When will it cost $5 a gallon?
*January 6, 2016*

**Spanish 2**

In the following, underline the correct past tense. So, the preterite and imperfect Los estudiantes ( tomaban/tomaron) apuntes mientras la profesora ( hablaba/hablo) Would it be tomaban and hablo
*January 5, 2016*

**Math**

Mary cut pizza into 16 slices. If she gave 3/8 of the pizza to her friend, how many slices of pizza did she give away
*January 5, 2016*

**Spanish 2**

In the following, underline the correct past tense. So, the preterite and imperfect Los estudiantes ( tomaban/tomaron) apuntes mientras la profesora ( hablaba/hablo) Would it be tomaban and hablo
*January 5, 2016*

**Trigonometry**

For which angles in degrees if any, is sin A not equal to 1/csc A? Answer for 0 through 359 degrees.
*December 8, 2015*

**Math**

<2.3>*<4,3>
*December 7, 2015*

**Math**

It is possible to have an angle where sin A > 1. True or False
*December 7, 2015*

**Math**

cotA = tan(90degrees- A) True or False The vectors <4, 5> and <-10, 8> are orthogonal True or False 2<3, 5> = 16 True or False <2. 3>*<4, 3> = <2, 6> + <4, 5> = Find c if a = 3, b = 5, and A = 30degrees=
*December 3, 2015*

**Math**

cotA = tan(90degrees- A) True or False The vectors <4, 5> and <-10, 8> are orthogonal True or False 2<3, 5> = 16 True or False <2. 3>*<4, 3> = <2, 6> + <4, 5> = Find c if a = 3, b = 5, and A = 30degrees=
*December 3, 2015*

**Math**

A plane is flying on a course with a vector of <250, 100>, where the 250 is the speed due north, and the 100 is the speed due east. The wind is blowing <25, 5> where the directions are also north and east, in the same order. How fast is the plane flying? All values...
*December 3, 2015*

**Math**

Given that an equation of the form f(x) = x^n has n solutions, and that the solutions are equally spaced at a given radius in the complex plane, discuss why complex solutions must occur in conjugate pairs when .
*November 20, 2015*

**Math**

Given that an equation of the form f(x) = x^n has n solutions, and that the solutions are equally spaced at a given radius in the complex plane, discuss why complex solutions must occur in conjugate pairs when .
*November 17, 2015*

**Math**

For f(x) = 0.01(2)x, find the average rate of change from x = 3 to x = 8. A.0.08 B.0.496 C.2.48 D.5
*November 4, 2015*

**Math**

The answer is b
*November 4, 2015*

**Math**

Which of the following options is an equivalent function to f(x) = 4(3^2x? A.f(x)= 36^x B.f(x)= 4(9)^x C.f(x)= 144^x D.f(x)= 4(6x) I think that's how you put the exponents in standard notation
*November 4, 2015*

**Math**

It is exponents
*November 4, 2015*

**Math**

Which of the following options results in a graph that shows exponential growth? A.f(X)= 0.4(3)^X B.f(X)= 3(0.5)^X C.f(X)= 0.8(0.9)^X D.f(X)= 0.9(5)^-X
*November 4, 2015*

**Math**

Please Help
*November 4, 2015*

**Trigonometry **

Suppose a planet has a radius of 5,000 km. Starting at the point on its surface at 0 degrees longitude and 0 degrees latitude,find the distance to the point on its surface at 30 degrees longitude and 60 degrees latitude.
*November 2, 2015*

**Math**

Draw the line through the point (4,5)that is parallel to the y-axis. Write the equation of this line and state its slope. Can anyone assist me. The example or instructions is not in my text.
*October 5, 2015*

**I need Help!!!**

Write the equation of the line that contains the indicated pair of points. Express the final equation in standard form. (−3, 1) and (9, −3)
*October 3, 2015*

**Algebra **

Write the equation of the line that contains the indicated pair of points. Express the final equation in standard form. (Objective 3) (−3, 1) and (9, −3)
*October 3, 2015*

**math**

Find the symbols for degrees, minutes and seconds on your calculator. Then find cot(43‹41Œ13"). Please give the details of what you did in addition to the answer. Explain what you did to find this. Has any other response used a wrong technique? What ...
*September 25, 2015*

**Trigonometry **

Find the symbols for degrees, minutes and seconds on your calculator. Then find cot(43‹41Œ13"). Please give the details of what you did in addition to the answer. Explain what you did to find this. Has any other response used a wrong technique? What ...
*September 21, 2015*

**English**

Thank you!!!!!
*September 16, 2015*

**English**

Can someone please tell me if I got the answers right?
*September 16, 2015*

**English**

Oops! I'm sorry! OK, my answers. #7 - Proper. #8 - Collective. #9 - Compound. #10 - Common.
*September 16, 2015*

**English**

For questions 7-10, identify the type of noun underlined in each sentence. 7. The AZTECS made sacrifices to their gods. (2 points) Select all that apply. Common. Proper. Compound. Collective. 8. A SWARM of insects surround the raft as we drifted down the river. (2 points) ...
*September 16, 2015*

**Intermediate math**

I have to factor these two problems but am having some difficulties X^3y^6-64 & (x+y)^3+(x-y)^3
*September 13, 2015*

**psychology**

Which approach would explain that phobias are acquired through classical conditioning and the hypochondriac's "sickness behavior" is reinforced by sympathy and attention?
*September 10, 2015*

**Science**

A hollow iron cube has measures 5cm on each side and has a mass of 20g will the iron cube sink or float?
*September 10, 2015*

**Trigonometry **

Two planes are flying at the height of 10-km. They are going at the same speed, and both traveling due north. If the planes are 3,000 km apart as measured along the surface of the earth, what angle do the lines from the planes make to the center of the Earth make?
*August 24, 2015*

**history**

Among the legislative acts passed during Franklin Roosevelt’s first term as president, which one gave relief to artists, actors, and writers? A. Works Progress Administration B. National Recovery Administration C. Tennessee Valley Authority D. Civilian Conservation Corps
*August 14, 2015*

**chem 101**

How many milliliters of 0.205 M NaOH solution are needed to completely neutralize 5.50 mL of 0.865 M H2SO4 solution?
*July 23, 2015*

**science**

An astronaut has a mass of100kg. She recedes from her spacecraft using spurts of gas from a small unit on her back. If the force generated by the gas spurt is 50N, calculate her acceleration.
*June 16, 2015*

**Finance**

what is the present value of $2500 per year for 9 years discounted back to the present at 11 percent?
*June 9, 2015*

**algebra**

A cubic polynomial function f(x) has leading coefficient -2 and intercepts the y-axis at 2. If f(1)=1, and f(-2)=-2, find f(-1) and write the complete function.
*April 6, 2015*

**us history**

Who explored enough of South America to deem it a new continent?
*April 1, 2015*

**health part2**

The sole activity of the respiratory system is breathing. True False The exchange of gases between the blood and tissue cells is external respiration. True False Air flows in the process of pulmonary ventilation because of pressure differences between the atmosphere and the ...
*March 28, 2015*

**health part2**

The sole activity of the respiratory system is breathing. True False The exchange of gases between the blood and tissue cells is external respiration. True False Air flows in the process of pulmonary ventilation because of pressure differences between the atmosphere and the ...
*March 28, 2015*

**Body Systems II**

Arteries carry blood ________ the heart.
*March 28, 2015*

**math**

Shelby walks at a constant rate. the equation that represents this relationship is d=4t, where d is the distance in miles and t is the time in hours. What does the constant 4 tell you about shelby? Make use of structure. What question is answered by the equation d=4(32)?
*March 17, 2015*

**Science**

Haha, me too. :)
*February 26, 2015*

**Science**

Your name, it's Meredith Grey so I was wondering if you watched Grey's Anatomy?
*February 26, 2015*

**Science**

Thank you, you really helped me understand this better. You want Grey's Anatomy, don't you? :)
*February 26, 2015*

**math**

The probability of getting a white marble from a bag is 1/5. If there are 37 white marbles in the bag, what is the total number of marbles in the bag
*February 12, 2015*

**Math**

A square with a side length of 2s has a smaller square inscribed. The vertices of the smaller square are at the midpoints of the sides of the larger square. What is the ratio of the larger square to the area of the smaller square? Express your answer in simplest form.
*February 10, 2015*

**word problems**

I am totally confused by the way you did this. It totally lost me. Can you please tell me in a different way? Where did you get the 12 from in your fractions?
*January 15, 2015*

**word problems**

miguel is 5ft 10 inches tall On a sunny day he casts a shadow of 4ft 2 inches long. At the same time, a nearby electric tower casts a shadow 8ft 9 inches long. How tall is the tower? Please help me set up the equation. Do i use is actual height or his shadow?
*January 15, 2015*

**Math 6th grade**

At lunch 3 1/4 small pizzas were equally devided into 4 people one person eats 1/4 of what he was given how much of a whole pizza did that person eat
*December 10, 2014*

**8th grade Math help**

7.615 so 8
*October 15, 2014*

**Math**

Thank you so much!
*October 13, 2014*

**Math**

luc has 1 h of homework to do. He has assignments to complete for social studies and math, and a science test. he sepends 2/5 of the time completing the social studies assignment, and 1/3 of the time on math. How much time does Luc have left to study for the science test?
*October 13, 2014*

**math **

Evaluate: -3/4 - 1 3/8 A: - 17/8 B: -1 C: 17/8 D: -5/8 I put C but its was incorrect. I'm to sure what the correct answer would then be. can you show me how to solve it and how to achieve the correct answer?
*October 7, 2014*

**physics**

turtle goes 0.50m/s rabbit goes 3.0m/s^2.. rabbit gives turtle 195 seconds head start. how long will it take for hare to catch turtle? 195*.5=97.5m +amount covered while rabbit is catching up
*October 6, 2014*

**math**

Jessie has a box of 1000 marbles 75 are yellow 230 are red 331 are blue and 364 are green what fraction of his marbles are yellow and what fraction of his marbles are red
*September 2, 2014*

**math**

Jessie has a box of 1000 marbles . He has 75 yellow , 230 red, 331 blue and 364 green what fraction of his marbles are yellow? What fraction of his marbles are ref?
*September 2, 2014*

**Advanced Math**

why are you using 150 in the second example isn't it supposed to be 120?
*August 28, 2014*

**Mathematics**

price company received an invoice in the amount of $3,800 dated may 24 for merchandise they purchased. the terms of the sales are 3/15, 2/30, n/45. what payment should be made if the invoice is paid on June 20?
*August 26, 2014*

**Chemistry**

A 11.0-mL sample of an unknown H3PO4 solution requires 116mL of 0.140 KOH to completely react with the H3PO4. What was the concentration of the unknown H3PO4 solution (answer in M). H3PO4(aq) + 3KOH(aq) --> 3H2O(l) + K3PO4(aq)
*July 23, 2014*

**help **

If you could design a study on anything about human behavior to show how it is the same across cultures, what would that be?
*July 19, 2014*

**gender roll of development**

Do you think it is possible our biological make up dictate whether we will be maternal or parental and we choose our roles accordingly ?
*July 15, 2014*

**Social Studies**

yes that is correct
*July 15, 2014*

**Astronomy**

You must show your work for full credit.) Calculate the circular speed of an object that orbits the Sun at a distance of 0.2 AU (1 AU = 1.5e+11 meters, the distance between the Earth and the Sun): (Points : 10)
*July 10, 2014*

**Algebra 2**

Which matrix equation is equivalent to 3x+2y-5z=20 5x-10y+8z=17 -8+11y-2z=29
*May 19, 2014*

**biology help**

The cells in the retina that detect color and bright light are called _________ cells.
*May 19, 2014*

**biology help**

my first answer on the first question antidiuretic i'm not sure on second answer
*May 19, 2014*

**biology help **

Frequent urination is associated with alcohol consumption because alcohol suppresses the hormone (A)__________. As a result, urine becomes more (B)__________, and the body loses more water than it should.
*May 19, 2014*

**statistics**

At the beginning of the semester, students who registered for a statistics course were randomly assigned to two sections, each taught by a different instructor. At the end of the semester, we would like to test whether there are differences in performance on the final exam ...
*May 1, 2014*

**statistics**

A researcher was interested in assessing the effectiveness of the Statistics Diet as compared to a regular low calorie diet on weight loss. In the study, obese participants were randomly assigned to one of two groups: (1) the Statistics Diet, which required participants to ...
*April 30, 2014*

**statistics**

A fictional study was used to examine the effect of a new antianxiety drug on levels of anxiety. Sixty participants were randomly assigned to one of two groups: 1) new antianxiety pill and 2) placebo pill. One hour after taking the medication or placebo, all of the ...
*April 30, 2014*

**statistics**

A professor is interested in the relationship between the number of hours students study for a quiz and their quiz grades. She asked each student to record the number of hours that he/she studied for the final exam. She also recorded the students’ grades in percentages (...
*April 29, 2014*

**statistics**

A clinical psychologist notices that admission to the psychiatric hospital she works at seem to vary by season. Using a chi-square test, she rejects the null hypothesis that hospital admission is independent of season. What conclusions can she make? a. Hospital admissions are ...
*April 28, 2014*

**statistics**

For which of the following would it be most appropriate to use an ANOVA to analyze the data? A. A researcher is interested in determining the most effective format for advertising. He randomly assigns 60 people to one of three groups: (1) television commercial, (2) radio ...
*April 27, 2014*

**Math**

Drinking 8 fluid ounces of milk provides 270.0 milligrams of calcium. How many fluid ounces of milk provide 72.5 milligrams of calcium? Round to the nearest tenth.
*April 8, 2014*

**Science**

How much copper 2 sulfate do you need to react with 0.5grams of steel wool?
*March 19, 2014*

**math**

The unit rate of 7/12 liters in 3/10 kilometers
*February 20, 2014*

**math**

43+5=8 do u regroup
*January 23, 2014*

**math**

Thank you!!!!
*December 7, 2013*

**math**

A car dealer has 30 cars and trucks. If 2 more cars are delivered, the dealer will have 3 times as many cars as trucks. How many does trucks does the dealer presently have?
*December 7, 2013*

**math**

thanks
*December 4, 2013*

**math**

solve the equation for x using the fact that if a^u =a^v then u=v. 9^-x+15=27x. thanks
*December 4, 2013*

**math**

simpify: 3radical27x^10/5x^3y^5 7radical2x+2radical72x^3-radical162x^5 sorry dont know how to do the radical sign.
*December 4, 2013*

**math**

use the given zero to find the remaining zeros of the fuction...f(x)=x to the 5power-6x4power+7x3power-10x2power zero:1+i
*December 2, 2013*

**math**

find the real zeros of the given functions, use the real zeros to factor f. f(x)=-2x4power+9x3power+2x2power-39x+18
*December 2, 2013*

**Math**

What is the equation for an input of 0,1,2,3,4 and output of 1,4,9,16,25
*October 10, 2013*

**statistics**

Most Americans, 75% in fact, say frequent handwashing is the best way to fend off the flu. Despite that, when using public restrooms, women wash their hands only 67% of the time and men wash only 46% of the time. Of the adults using the public restroom at a large grocery chain...
*September 26, 2013*

**Science **

How does using a scale model make these relationships easier to understand?
*September 4, 2013*

**Math**

56 is ______% of 125.
*August 16, 2013*

**Accounting**

When a not-for-profit facility receives a contribution from a member of the community, the cost of the capital is inconsequential when deciding how to use the contribution, because it is, in effect, free money.” Yes
*August 5, 2013*

**Math**

How should the future value equation be modified if compounding occurs more frequently than annually?
*August 3, 2013*

**Math**

Compare the results of the present value of a $6,000 ordinary annuity at 10 percent interest for ten years with the present value of a $6,000 annuity due at 10 percent interest for eleven years. Explain the difference.
*August 3, 2013*

**Math**

Boulder City Hospital has just been informed that a private donor is willing to contribute $10 million per year at the beginning of each year for fifteen years. What current dollar value of this contribution if the discount rate is 14 percent?
*August 3, 2013*

**Math**

Boulder City Hospital has just been informed that a private donor is willing to contribute $10 million per year at the beginning of each year for fifteen years. What current dollar value of this contribution if the discount rate is 14 percent?
*August 3, 2013*

**Math**

In the future value annuity table at any interest rate for one year, why is the future value interest factor of this annuity equal to 1.00?
*August 3, 2013*