# Posts by zoe

Total # Posts: 307

**math homework**

It made no sense at ALL to me.

**math homework**

O.K ya, that's what I thought.

**math homework**

A proper fraction

**math homework**

That's why I'm confused.

**math homework**

No like 4/6

**math homework**

Um...

**math homework**

Is anyone there? :(

**math homework**

how do you convert a REGULAR fraction into a mixed number.

**Elemements of Math**

Little Caesar's Pizza had a commercial on television that claimed you could buy one pizza and get another one free, with up to 5 toppings per pizza (do not count the pizza sauce or the cheese as a topping). The dialogue on the commercial went something like this. The tall ...

**12 Math**

f(x)=2x^4+5x^3-x^2-3x+1 a)Determine the average slope between the points where x=1 and x=3. b)Determine the instantaneous slope at each of these points.

**Math**

Equation: t=5(logP/log0.5) P is the percentage of caffiene in the bloodstream related to t, time elapsed in hours Suppose you drink a cup of coffee at 9:00 a.m. What percentage of the caffiene will remain in your body at noon?

**12 Math**

Solve exactly. a)3^x-2=5^x b)2^k-2=3^k+1

**12 Math**

Evaluate each logarithm. log^2(subscript)36^3

**Chemistry**

Well I just guessed 250 liters and got it right. lol.

**Trig**

Determine exact solution. x E (0, 2pi) 2csc^2x-8=0

**Filipino**

pangatnig na pansubordinasyon

**Math**

Sarah is 3 years older than 1/3 Darcy's age. Translate this phase to an algebraic expression.

**Calculus**

A 12-ft ladder is leaning against a vertical wall when Jack begins pulling the foot of the ladder away from the wall at the rate of 0.5ft/s. What is the configuration of the ladder at the instant that the vertical speed of the top of the ladder equals the horizontal speed of ...

**Math**

Find the roots by factoring. 25x squared - 30x= -9

**Mathamatics**

Solve the following trigonometry identities. a) 1-cos2(theta) = sin(theta)cos(theta)/cot(theta) b) (1-cos2(theta))(1-tan2(theta))=sin2(theta)-2sin4(theta)/1-sin2(theta) *its supposed to be cos to the power of two, sin to the power of four, etc. There is also supposed to be a ...

**Algebra**

19

**math**

10(5g+8k)

**Multiple Choice HELP!**

B. 2 and 2 because 2x2=4 and 2+2=4 so the product of the two positive numbers isn't greater than the sum of the same two positive numbers, they are equal.

**HELP ONLY ONE QUESTION!!!!!!!!!!!! HELP ASAP ASAP!**

A Cyber community is an online group of people. You are a part of it when you are currently active in this group.

**Science**

You all could be nice, and if you have nothing nice to say, shove it up your ass because it needs it!

**math**

You would turn 3/4 into eighths. 👌🏻Hoped this helped

**Chemistry**

Could you please explain how electronegativity works and how you find the total electronegativity value of PO3 K2O H2S GIVEN: P- 2.1, O-3.5, K- 0.8, H- 2.1, and S- 2.5 Also how to you tell if the compound is ionic, polar covalent, or non polar covalent? Thank you!!!

**Chemistry**

How can you tell that CO2 has a dipole moment while O2, N2, and HCL does not?

**Chemistry**

Could you please explain how electronegativity works and how you find the total electronegativity value of PO3 K2O H2S GIVEN: P- 2.1, O-3.5, K- 0.8, H- 2.1, and S- 2.5 Also how to you tell if the compound is ionic, polar covalent, or non polar covalent? Thank you!!!

**english**

The Cold Equations is a story that talks about a young adult, Marilyn. Who sneaks onto a space ship heading to an area where her brother is at. Even though she knows that being a stowaway is illegal, she thinks she will just have to pay a fine. But when the pilot finds Marilyn...

**math**

96 diveded by 3

**math trig**

If a ferris wheel with a 20.5 meter radius, how high would one car be from the loding dock at these given angles trveled by the rider?: 90 135 180 225 270 315 405 450 495 and 540?

**math trig**

If a ferris wheel has a radius of 20.5meters, how tall would a 45 degree angle be?

**4 grade math**

0/3

**Math-Calculus**

Consider two ships which are joined by a cable attached to each ship at the water line. Suppose the two ships are 200 metres apart, with the cable stretched tight and attached to a pulley which is anchored halfway between the ships at a depth of 45 metres. If one ship moves ...

**Physics**

A 4.10 m long, 590 kg steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 66.0 kg construction worker stands at the far end of the beam. What is the magnitude of the torque about the point where the ...

**math**

The perimeter of a rectangular playground is 40 yards. It is 1.5 yards longer that it is wide. What is area of playground?

**math**

The perimeter of a rectangular playground is 40 yards. It is 1.5 yards longer that it is wide. What is area of playground?

**stats**

z

**Geography**

The G8 countries are responsible for 62% of the carbon dioxide emission into the earths atmosphere. Should I classify this as worrying or human changes

**Algebra**

I just guessed and checked for this one, but the answer is Karen will be 18, and Susan will be 27.

**science (revision)**

I have a test on electricity on Friday and I wandering if I could get a basic summary of what I should know. I'm British so I don know what grade I am but I'm 11 so aound that sort of basic level please!!! Thanks.

**Math**

A cup of coffee costs 80c less than a burger.Together they cost 220c. Use this information to form an equation and solve it. This question I can't get my head around. It's due in 2 days but I would like to get it done sooner. Thanks.

**physics**

A large water tank is 18m above the ground. Suppose a pipe with a diameter of 8cm is connected to the tank and leads down to the ground. How fast does the water rush of the piper at ground level? Assume that the tank is open to the atmosphere.

**Math**

Jen and Heather went to lunch. When the bill came, Jen discovered that she only had $8. Luckily, Heather had enough money to pay the other part, 3/5 of the bill. How much did Heather pay? How much was the total bill? I'm having a hard time understanding the steps in ...

**physics**

wave speed: the violin is a four stringed instrument tuned so that the ratio of the frequencies of adjacent strings is 3:2. (This is the ratio when taken as high frequency to lower frequency.) If the diameter of E string (the highest frequency) on a violin is 0.25 mm, find the...

**physics (SOS!)**

a cylinder that is 20 cm tall is filled with water. If a hole is made in the side of the cylinder, 5cm below the top level, how far from the base of the cylinder will the stream land? Assume that the cylinder is large enough so that the level of the water in the cylinder does ...

**physics**

A block of wood will sink 10 cm in freshwater. How far will it sink in seawater. The specific gravity of seawater is 1.025. I'm confused as to how to approach to problem

**physics**

why is work done during the rise= mgh directly?

**physics**

(a) a spherically shaped buoy is made from wood, which has a specific gravity of 0.6. find the acceleration of the buoy when released from rest at the bottom of a freshwater lake. (b) if the buoy starts out 10 m below the surface of the water, determine the height above the ...

**chemistry**

If 4.83 mL of an unknown gas effuses through a hole in a plate in the same time it takes 9.23 mL of argon, Ar, to effuse through the same hole under the same conditions, what is the molecular weight of the unknown gas?

**chemistry**

A sample of natural gas is 85.2% methane, CH4, and 14.8% ethane, C2H6, by mass. What is the density of this gas mixture at 18.0°C and 771 mmHg? Assume ideal gas behavior.

**Physics**

outgoing is the initial velocity and incoming is final velocity though

**i need help ss**

It is d b b c i just did it and got a 100% trust me :)

**mathematics of finance**

solve; FV=7,000;i=0.03;PMT=$400;n=?

**algebra**

what is the answer of 7h+2w-9h-8w

**social studies**

ethnic group

**college physics**

Answer pls

**chem**

.144

**Math**

A student wants to display the average monthly temperatre for one year.He chooses a line graph to display the data.Describe and correct the error made in choosing that type of display for the data.

**Math**

Which sample is more likely to be biased? Should big bend state park restrict the number of campers allowed on the grounds? a.70 randomly selected visitors to Big Bend State Park b.70 randomly selected campers at Yosemite National Park

**Math**

Should the city build a homeless shelter downtown?Which sample is more likely to be biased? a.60 randomly selected downtown resturant customers b.60 randomly selected people at the post office

**Math-Corrections**

I'm not sure ,but now i got the answer no because she(the librarian)cant prove that the kids will not like the new encyclopedia.

**Math-Corrections**

Based on the survey,the librarian predicts that about two-thirds of the students in seventh grade will not like the new encyclopedia.Is this answer reasonable? Answer i got:yes

**meanings**

Musical?

**Chemistry**

What is the complete chemical equation? Al(s) + Cu(CH3COO)2(aq) -> ?

**Math help quickly**

Use the expressions for left and right sums and the table below. right-hand sum = summation (n above and i =1 on the bottom) f(ti) * change in t = f(t1) * change in t + f(t2) * change in t + .... + f (tn) * change in t left-hand sum = summation (n above and i = 0 on the bottom...

**Calculus need help badllyyy!**

Use the expressions for left and right sums and the table below. right-hand sum = summation (n above and i =1 on the bottom) f(ti) * change in t = f(t1) * change in t + f(t2) * change in t + .... + f (tn) * change in t left-hand sum = summation (n above and i = 0 on the bottom...

**4th grade math**

what is 5/6 of 288

**4th grade math**

what is 5/6 of 288

**Chemistry**

What is the magnitude of the energy change associated with the emission of one mole of photons of light* with this wavelength? light*= 6.231×1014 Hz

**MATH**

2+2+1+1=6cm2

**Chemistry**

Determine the partial pressure of oxygen necessary to form an aqueous solution that is 7.7 x 10-4 M O2 at 25oC. The Henry's Law Constant for oxygen in water at 25oC is 1.3 x 10-3 M/atm

**Chemistry**

Find the product for the equation and then write a balanced equation. Cl2 + FeBr3 -> ?

**chemistry**

I need to convert a word problem that I was given into a balanced chemical equation and cannot figure out how i was type it. The problem is: Nitrogen and hydrogen gases react at extreme temperatures and pressures. Any help?

**math**

Puck is making a scale model of an airplane. The actual airplane is 98 feet long. The scale of the model is 1 cm : 4.7 ft. What is the length of the model? [Round to the nearest hundredth, if necessary.]

**Chemistry**

In respect to covalent bonding, what does it mean if there's an unshared or lone pair of electrons?

**Science**

A circular hatch in the hull of a submarine has a radius of 40.0 cm. The submarine is 850.0 m under water. If atmospheric pressure above the ocean is 1.01 x 105 Pa and the air pressure inside the submarine is 1.31x 105 Pa, what net force is exerted on the hatch? (ρsw = ...

**chemistry**

A gaseous mixture containing 5 moles of H2 and 7 moles of Br2 reacts to form HBr. Write a balanced chemical equation. Which reactant is limiting? What is the theoretical yield in moles? What is the theoretical yield for this reaction in grams? How many moles of excess reactant...

**calculus**

i'm not sure how to do this. can someone help, please? thanks! consider the function f(x0 = x^2 + 2x on the interval [-2, 2] a. draw a sketch of the graph of f(x). find the average rate of change on the interval [-2, 2] and sketch this secant line. b. find an expression ...

**English**

essay "peace and stability in a globalized world" I need some help. Thanks

**Math**

Typing error fing meaning find

**Math**

How do I fing volume of a shape?

**calculus**

let f(t) = 2*pi*t + sin(2*pi*t) a) find value of t in open interval (0,2) for which the tangent line at (t, f(t)) is parallel to the line through (0,0( and (2, 4pi) b) suppose the given funtion describes the position of a particle on the x-axis for 0<= t <= 2. What is ...

**calculus**

find the centroid of the plane region bounded by the curves y = cos x, y=sinx, x=0,

**English**

I need to know what just means in the following Sentance . Do you think this is just Please help even my mom is blank Tx

**pre algebra with pizzazz 239**

X+y=2

**English**

I'm blank on this question From the verbs listed write a noun ending in ion Divide Explode. Collide Confess. Invade. Rotate Comprehend. Deflect I don't need all the answers I just need to know what it means Thanks

**Non verbal reasoning age 9-10**

I really hate nvr it's horrible. I'm English so we have to do this I don't know if any Americans do it but I still hate it. For anyone who docent know what it is, it's basically pictures that mean something , but get changed ur ment to circle the answer . Any ...

**Fourth grade math**

Tx fo helping

**Fourth grade math**

What's range mean?

**English**

For our homework we had to draw and label an imaginary creature, then write an essay on it . I'm completely stuck on the essay bit please he

**English**

What word is wrong in this sentence ? Darren wusai and I is a good team. Please help I need this in in about six hours time!

**English**

Wow ! I thought it wasn't that simple as of being an opposite thanks I'm saved!

**English**

Really stuck on English homework.ahhhh! What is an antonym for the following words? Subtract Extend Spectator Least Confident Exterior Please, help despretly needed by Monday !

**english**

I'm not sue but I would put who because it's a simpler word

**English check my answer**

I'd just say I'm really bad at grammar and tell your teacher , can I have some extra help please? Sweet talking into thinking you love English always works

**Social Studes**

Hhhhhheeeeeellllllppppppppp mmmmmmeeeeeee oooooooonnnnnnn this

**geography**

Name at least 2 items a maps key should include

**Math**

I am a number with the same number of tens as ones. The sum of my digits is less than 5. Is am a number greater than 15. What number am i?