Saturday

February 25, 2017
Total # Posts: 5,141

**Physics**

Help I don't understand how to do this homework question, we didn't go over any like it in class. A car has an average speed of 80.0km/h for 1 hour, then an average speed of 90.0km/h for 2 hours during a 3 hour trip. what was the average speed for the 3 hour trip?

*February 8, 2015*

**phi 103**

For John Dewey, open-minded inquiry is: (Points : 1) The virtue that prevents habit from making us unwilling to hear other ideas Something only a child can do For people who are weak in their beliefs Reinforcing our own beliefs by talking with people who share those beliefs ...

*February 8, 2015*

**math**

Write a quadratic function rule for the given table in problems 4 and 5. 4. X (0, 1, 2, 3) Y (-6, -5, -7, 3) a. y= x-6 b. y= x-4 c. y= x^2 - 3 d. y= x^2 - 6 5. X(-1, 0, 1, 7) Y(5,4,5,8) a.y=x+4 b.y=x^2+4 c.y= x^2+6 d.y=x+6

*February 6, 2015*

**algebra**

in a triangle find the value of x when 7x + 3x + 90 degrees = 180 degrees

*February 6, 2015*

**physic**

A student stands on a rotating disk holding 4-kg objects with each hand. hen his arms are extended horizontally, the object are at 0.8m from the axis of rotation and he rotates at 0.7 rad/sec. The moment of inertia of the student plus the disk is 3.00 kgm^2 and is assumed to ...

*February 5, 2015*

**physic**

A 25 gm bullet is fired into a 2.25kg ballistic pendulum and becomes embedded in it. If the pendulum moves a vertical distance of 10cm, calculate: A. The speed of the system after collision B. The initial speed of the bullet C. The percentage of the energy lost in the process.

*February 5, 2015*

**physic**

A 0.25-kg punk, Initially at rest on a frictionless horizontal surface, is struck by a 0.20kg punk that is initially moving along the x-axis with a velocity of 2.20 m/sec. After the collision, the 0.20 kg punk has a speed of 1.5 m/s at an angle of 37 to the positive x-axis. ...

*February 5, 2015*

**Chemistry**

This site it terrible... for everything. Not helpful at all. Thanks....

*February 4, 2015*

**linear algebra**

Which of the following homogeneous systems have a nontrivial solution? 5x+ y + 5z =0 −2x + 2y− 4z = 0 4x− 3y + 6z = 0 can someone please explain how you know

*February 3, 2015*

**math**

nevermind i got that, can someone help me with this Find the values of a and b that make f continuous everywhere. f(x) = x2 − 4 x − 2 if x < 2 ax2 − bx + 3 if 2 ≤ x < 3 4x − a + b if x ≥ 3

*February 3, 2015*

**math**

limit as x --> ininity of (5-e^x)/5+ 3e^x

*February 3, 2015*

**chemistry**

Your calculations are precise; however, your final calculation is 9700 J. You are answering as kJ. You must convert to 9.70 kJ.

*February 2, 2015*

**Chemistry**

A certain reaction has an activation energy of 58.80 kJ/mol. At what Kelvin temperature will the reaction proceed 6.50 times faster than it did at 303 K?

*February 2, 2015*

**Algebra 2!!!!**

Use the graph to shorten the list of possible rational zeros of the function. Then find all real zeros of the function. 1.) f(x)= 4x^3-8x^2-15x+9 4.) f(x)= 2x^3-5x^2-4x+10

*February 2, 2015*

**Physics**

1) If = 2.0 cm, due E and = 5.0 cm, due W Determine: a) R = -A + 2B b) V = - 2A - B c) F = 3A - B My Answers R= 8, V= -1, F= 1 Is this correct and how do you know when direction it's going to be?

*February 1, 2015*

**art**

No that is not an answer they give

*January 30, 2015*

**physics**

Two point charges are placed at two of the corners of a triangle (Take q1 = -10.2 µC, and q2 = 16.3 µC.) Find the magnitude and the direction of the electric field at the third corner of the triangle.

*January 29, 2015*

**Math**

What is 4+ 1000000.

*January 28, 2015*

**math**

The answer is 63

*January 28, 2015*

**chemistry**

How many moles of lead iodide are produced from 300. g of potassium iodide? Usie the reaction below. PB(NO3)+ KI = Ni9OH)2 + NaNO3

*January 26, 2015*

**Math**

sam travelled 1/4 of a journey by bus. He jogged 1/2 of the remaining distance and walked the rest of the way. If he walked 800 feet, what was the total distance he traveled?

*January 25, 2015*

**math**

Evaluate the limit using the appropriate Limit Law(s). lim t → 2 of (t^44 − 9)/ 2t^2 − 3t + 7

*January 25, 2015*

**crime**

I need to find facts on this so I am able to cite it in a paper

*January 24, 2015*

**crime**

How might a news company’s political alignment alter its presentation of crime in America?

*January 24, 2015*

**linear algebra**

If A is an n × n matrix, then A = S + K, where S is symmetric and K is skew symmetric. Let A= [1 3 -2;4 2 2;5 1 2] Find the matrices S and K described above can some0ne explain how to get these two matricies? thanks

*January 24, 2015*

**Chemistry**

Consider the titrtation of 25.0mL of 0.0100M Sn2+ by 0.0500M TI3+ in 1 M HCL, using Pt and Saturated Calomel Electrodes to find the endpoint. F=96486.7 Cmol E0 Sn4+/Sn2+ =0.15V E0 TI3+/TI+ = 1.28 Esce = 0.241V R=8.3141 J K Mol (D) calculate E at the following volumes of TI3...

*January 24, 2015*

**ART check answers please**

Sid.V Thanks.

*January 24, 2015*

**Chemistry**

19,103

*January 22, 2015*

**Chemistry**

A solution contains 1.694 mg of CoSO4 (MW 155.0) per mL. Calculate a) The volume of 0.008640 M EDTA needed to titrate a 25.00 ml aliquot of this solution. Step 1. 0.001694g * 25ml * 1/155 g/mol= 0.0002732 mol Step 2. Volume of EDTA needed = 0.0002732 mol/ 0.008640 M = 0.03125 ...

*January 21, 2015*

**Chemistry (Re-post)**

A solution contains 1.694 mg of CoSO4 (MW 155.0) per mL. Calculate a) The volume of 0.008640 M EDTA needed to titrate a 25.00 ml aliquot of this solution. So this is my working out for this section, Step 1. Moles of CoSO4 = 0.0001694mg * 25mL * (1mol/155g/mol) 2.732*10^-4. ...

*January 21, 2015*

**Pre-Calc**

The concentration C of a chemical in the bloodstream t hours after injection into muscle tissue is C=3t^2+t/ t^3+50 A. Determine the horizontal asymptote of the function and interpret its meaning in the context of the problem. B. approximate the time when the bloodstream ...

*January 20, 2015*

**Pre-Calc**

A company produces portable cassette players estimates that the profit P (in dollars) for selling a particular model is P=-76x^3+4830x^2-320,000, 0 ≤ x ≤ 50, where x is the advertising expense (in tens of thousands of dollars). Using this model, find the smaller of...

*January 20, 2015*

**Chemistry**

A solution contains 1.694 mg of CoSO4 (MW 155.0) per mL. Calculate a) The volume of 0.008640 M EDTA needed to titrate a 25.00 ml aliquot of this solution. moles CoSO4 = 0.001694mg/ 155 g/mol = 1*10^-6 mol Moles EDTA = 1*10^-6mol/0.025L = 0.000436 mol/L (in 25 mL) This is where...

*January 19, 2015*

**computer graphics**

Write an OpenGL program that allows interactive creation of polygons via mouse input. That is, I click to create new vertices until I like the polygon, then make some indication (double click, right click, press a key, click a button; your choice) that I’m done, and the ...

*January 19, 2015*

**math**

thanks

*January 19, 2015*

**math**

what i am just saying am i right

*January 14, 2015*

**math**

am i right ms sue

*January 14, 2015*

**math**

are u sure i am right

*January 14, 2015*

**math**

ms sue

*January 14, 2015*

**math**

please i neeeed help i think a but i not 100% sure

*January 14, 2015*

**math**

please help ms sue please or any body

*January 14, 2015*

**math**

what is the ratio of the measurements 6/12=2.5/5 in simplest form a.2:1 b.6:12 c.1:2 d.none of these

*January 14, 2015*

**math**

ok now can u look at the new question i put up please

*January 14, 2015*

**math**

here it is ms sue

*January 14, 2015*

**math**

there is to right traingles and we have to find the missing side the first traingle has 4 on the bottom and 2 as its height the second trangle has a 9 on the bottom and the x as the height which number is x. a.4.5 b.18 c.8 d.2.25 i think a

*January 14, 2015*

**math**

what do u think on the 2 one ms sue

*January 14, 2015*

**math**

im i right on these questions

*January 14, 2015*

**math**

so the first question is a

*January 14, 2015*

**math**

could you help with this one there is to right traingles and we have to find the missing side the first traingle has 4 on the bottom and 2 as its height the second trangle has a 9 on the bottom and the x as the height which number is x. a.4.5 b.18 c.8 d.2.25 i think a

*January 14, 2015*

**math**

i think it is d

*January 14, 2015*

**math**

ms sue please help

*January 14, 2015*

**math**

12/6 =5/2.5 a.2:1 b.6:12 c.1:2 d.none of these

*January 14, 2015*

**ss**

please

*January 14, 2015*

**ss**

could u help me ms sue

*January 14, 2015*

**ss**

do u know this question ms sue math 12/6 =5/2.5 a.2:1 b.6:12 c.1:2 d.none of these

*January 14, 2015*

**ss**

thanks

*January 14, 2015*

**ss**

am i right ms sue

*January 14, 2015*

**ss**

one is d and 2 is a

*January 14, 2015*

**ss**

i think a for the 1 one and b for the second one

*January 14, 2015*

**ss**

there is the 2 question

*January 14, 2015*

**ss**

why is the work session for legislators 40 day? a.legislators were meant to hold other jobs not be career politicians b.state business takes a short time to complete c.it gives legislators time to campaign for re election d.it allows representatives to work closely with ...

*January 14, 2015*

**ss**

thanks so much i am typeing the other question

*January 14, 2015*

**ss**

how is the number of constituents represented by each district decided a.by country boundary b.through geographics boundaries such as rivers c.by political party d.through apportionment

*January 14, 2015*

**ss**

thanks can u help with two more please

*January 14, 2015*

**ss**

i think a and c but i am not sure

*January 14, 2015*

**ss**

here is the new question ms sue

*January 14, 2015*

**ss**

ms. sue here is the question

*January 14, 2015*

**ss**

which of the following are true statements about the qualifications of state legislature? a.senators must be at least 21 years old b.no one without a college degree may be a legislature c.legislatures must be Georgia residents for at least 2 years d.legislatures may serve any ...

*January 14, 2015*

**art**

i posted it as a new question ms sue

*January 14, 2015*

**art**

which of the following are true statements about the qualifications of state legislature? a.senators must be at least 21 years old b.no one without a college degree may be a legislature c.legislatures must be Georgia residents for at least 2 years d.legislatures may serve any ...

*January 14, 2015*

**art**

thanks could u help me with another one please

*January 14, 2015*

**art**

the bicameral organization of the georgia legislature consists of what? a.the house and senate b.the supreme court and the governor c.districts and apportionment d.senior and junior members

*January 14, 2015*

**art**

could you help with one more please

*January 14, 2015*

**art**

thank u i will tell u what i made

*January 14, 2015*

**art**

ms.sue? please i really need help thanks

*January 14, 2015*

**art**

can u please help me before midnight please

*January 14, 2015*

**art**

i have one more question im so sorry what inference near eastern cultures the best? a. all citizens were excellent writers b.only god worship the near east

*January 14, 2015*

**art**

so the first one is d and the second one is b

*January 14, 2015*

**art**

so it is b

*January 14, 2015*

**art**

could you tell me the answer please thank you so much

*January 14, 2015*

**art**

thats the answers

*January 14, 2015*

**art**

symbol of fortune byzantine god feared creature byzantine diet

*January 14, 2015*

**art**

i have one more question a golden byzantine belt is imprinted with the figure of a hunting falcon what cultural message is the artist hoping to send

*January 14, 2015*

**art**

so it would be d

*January 14, 2015*

**art**

please could u help me ms.sue

*January 14, 2015*

**art**

i really need help i looked in all my notes and everything please thanks

*January 14, 2015*

**art**

in near eastern culture the winged genius often represented in art and artifacts was a blank god a.destructive b.creative c.understanding d.benevolent

*January 14, 2015*

**astronomy**

a light year is a unit of distance most comparable to the distance from earth to what? nearest galaxy nearest star outer solar system

*January 14, 2015*

**statistics**

a statistics instructor collected data on the time it takes the students to complete a test. the test taking time is uniformly distributed within a range of 35 minutes to 55 minutes. determine the standard deviation, what is the probability a particular student will take less ...

*January 13, 2015*

**calc**

Is the matrix 6 0 0 5 a linear combination of the matrices 1 0 0 1 and 1 0 0 0 ? how do you figure this out?

*January 13, 2015*

**math**

find the simple interest on naira 28 for 25 years at 1 percentage per annum.

*January 12, 2015*

**MATH**

okay thank you ! :)

*January 10, 2015*

**MATH**

i know the answer is 0.08 but how can i isolate for i instead of using the method guess and check 5000 = (800[1-(1+i)^-9])/i

*January 10, 2015*

**MATH**

an annuity has an initial balance of $5000. annual withdrawals are made in the amount of $800 for 9 years, at which point the account balance is zero. what annual rate of interest, compounded annually, was earned over the duration of this annuity? PV = $5000 R = $800 n = 9 i...

*January 10, 2015*

**math**

an annuity has an initial balance of $5000. annual withdrawals are made in the amount of $800 for 9 years, at which point the account balance is zero. what annual rate of interest, compounded annually, was earned over the duration of this annuity? PV = $5000 R = $800 n = 9 i...

*January 10, 2015*

**physics**

An Olympic pool has dimensions 50.0 m × 25.0 m × 2.68 m (length × width × depth). The density of the pool water is 1007 kgm-3. Atmospheric pressure (1.00 atm) is acting on the surface of the water. If a child dives down to the bottom of the pool what ...

*January 8, 2015*

**math**

nvm again... sorry

*January 7, 2015*

**math**

joshua won $250000 in a draw to support the local hospital. he does not need the money for 3 months, so he decides to invest it in an account that pays 8% simple interest annually. calculate the interest paid on joshua's investment at the end of the 3 month period.

*January 7, 2015*

**Precal**

The angle of elevation from a ship in the ocean to the top of a lighthouse is 21deg. If the lighthouse is 200 ft. tall, how far out is the boat? Be sure to show work for partial credit.

*January 6, 2015*