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Posts by Kate

Total # Posts: 2,015

Math
just in general when I'm asked to sovle for X in a equation that is set to zero it's not really set to zero at all is it??? X^2 + 4X - 1 = 0 really what this is saying X^2 + 4X - 1 = dy right???

Math
h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 6 2 5 5 3 0 8 2

Math
ok so i'm kinda sort of confused... I had this for a equation X^2 + 4X - 1 = 0 and then I was like zero??? zero... really zero... hmm... X^2 + 4X - 1 = dy ???????? That zero does represent when Y equals zero correct??? this allows us to solve for X OH!!!!!!!!!!!!!! wait so...

Math
I haven't done factoring in ages I'm trying to factor this X^2 - 2X + 8 If i remeber correctly sense the leading coefficent is 1 the factored form is in this format (X-A)(X-B) which would give you X^2 -AX - Bx + AB or simply X^2 -(A+B)X +AB so then in my problem -(A+B)...

Math
what is the difference between an equal sign with another line above it and an equal sign with a triangle above it. I was alway taught that the three lines symbolized identity and that the equal sign with a traingle above it signified definition when would you use the three ...

English
I'm having a little bit of trouble with Adventures of Huckleberry Finn I don't believe you have to know the story to help me answer this question. This is from chapter 18 and is like one of the first lines. "He was well born, as the saying is, and that's worth...

Algebra
why is this a ture statement (A B^2)/C - B^2 =B^2 (A/C-1) by the way that is (A/C)-1

math
A water delivery truck with a cylindrical tank measuring 8 ft in diameter and long dispenses water to drought victims in cartons measuring 6 in. × 6 in. × 12 in. How many victims will get a full container of water?

math
A water delivery truck with a cylindrical tank measuring 8 ft in diameter and long dispenses water to drought victims in cartons measuring 6 in. × 6 in. × 12 in. How many victims will get a full container of water?

math
Alonso can't decide which size pizza to order. The 10-inch cheese and sausage pizza is $7.99, while the 12-inch deluxe is $8.99. The dimensions given are the diameters of the pizzas. If he gets the 10-inch pizza, the total price will be divided among 3 people. If he ...

math
A spherical tree ornament is to be painted in bright colors. If the ornament has a diameter of 4 cm, how much paint is needed?

math
One-half serving of soy sauce contains 389 milligrams of sodium. How many grams of sodium from soy sauce are included in an egg-foo-young dish made from 4 servings of soy sauce? Round results to the nearest tenth of a gram.

math
A toy baseball bat comes with 3 plastic balls in a box that is a rectangular solid. The box is just big enough to hold the 3 balls. The radius of the balls is 1.9 in. What is the volume of the air in the box surrounding the balls?

pre calc
Which three of the twelve basic functions are bounded( above and below)? Three of the tweleve basic functions are even. Which are they?

Physics
18. (II) At a steam power plant, steam engines work in pairs, the heat output of the first one being the approximate ehat input of the second. Th eoperating temeprautres of the first are 680 degrees C and 430 degrees C, and of the second 415 degrees C and 280 degrees C. If the...

pre calc
find all local maxima and minima (the y-values) and the vales where they occur g(x) x absolute value 2x+5 absolute value

Geography
push-pullfactors

physic
the useful carry of a racket is as 5% of all its mass,the other part is fuel.if the racket start moving from the static state, without the effect of F(est) [esternal forces] how is the finalize velocity if the velocity Usc is 5 km/s

Math
If the odds in favor of an event A are 3 to 1, what is the probability associated with event A occurring?

math
a train left podunk and traveled north at 75 km/h. two hours later, another train left podunk and travled in the same direction at 100 km/h. how many hours had the first train traveled when the second train overtook it? can someone help set this up?

math
Got it. Thank you very much

math
where did you get 140 from?

math
A train left Podunk and traveled west at 70 km/h. Two hours later, another train left Podunk and traveled east at 90 km/h. How many hours had the first train traveled when they were 1420 km apart? How do you solved this?

math
> greater than < less than

geometry
Can someone please show me how to find the centroid of a triangle with a median of 36 units. I know the ratio is 2:1 and the answer is 36. I just do not understand the formula.

space/astronomy
all of the gravitational force would remain the same aka. all of them are the same because they are at the same distance 10AU I JUST DID THIS PROBLEM AS WELL got right

Math
What are the odds in favor of getting at least one head in three successive flips of a coin?

Algebra
How do you solve this factoring problem by foil method: 25x2=16

biology
do you have basic cell structure typical plant vs animal cells organelles- stucture and function DNA DNA replication

Geometry
total area of the pizza= ðR2 Cheese + Sausage: 25ð Deluxe: 36ð $7.99/3 people = $2.66 for 8.33ð sq in. $8.99/4 people = $2.24 for 9ð sq in. The deluxe pizza is the better buy because you pay less per person

physics
the answer has to be in rpm, so does that mean that i'm not supposed to multiply by 2PI/60?

physics
A playground merry-go-round has a disk-shaped platform that rotates with negligible friction about a vertical axis. The disk has a mass of 240 kg and a radius of 1.4 m. A 33- kg child rides at the center of the merry-go-round while a playmate sets it turning at 0.20rpm. If the...

Physics
A 0.58- kg flashlight is swung at the end of a string in a horizontal circle of 0.85- m radius with a constant angular speed. If no torque is applied, what must the radius become if the angular speed of the flashlight is to be halved?

math
since it is equal probability you do add all three values and divide by three to get your answer

Math
Bridget added 1/5 to both 12 and 6 4/5 when subtracting 12 - 6 4/5. Tell why.

social studies
not having an army.

SCIENCE
10 EXAMPLE OF SOLUTION AND COLLOIDS

essay
what are some good topic to do a personal statment on for an college application?

spanish
what does te quiers comer toda la noche

biology
Describe how animal and plant cells are different.

pre calc
use the quadratic formula to solve for x. x^2+2x+5-0

pre calc
list the positive ientegers between -3 and 7 list the integers between -3 and 7.

Beowulf poem
1. The poem describes when Grendel’s “hatred began,” but it doesn’t tell us why. Why do Grendel began to hate Hrothgar and his people enough to kill them?

english
In today's world, who or what might be our Grendel, our monster? from the story Beowulf

chemistry
What was Bohr's theory of behavior of the electron?

social science
What are some issues that might cause the president to call a joint session of Congress?

english
so it is just a gold hall of men that is mainly seen

english
what does this old english mean in modern english goldsele gumena, gearwost wisse,

social science
why does the constitution specify different ways to determain the number of members for the House and for the Senate?

geometry
a)The planes ands axes of symmetry go through the faces, edges, and vertices of the octahedrons. b)There are 13 planes and axes of symmetry 3 go through opposite faces, 4 go through opposite vertices, 6 go through the midpoints of opposite edges c)The symmetry properties of ...

geometry
It is a triangle. 9/3=3/1 which is a triangle.

geometry
A regular pentagon does not tessellate the plane if the vertices or edges do not meet. In tesselations all the edges and vertices meet.

social studies
What are some reasons Eyptian civilization lasted longer than those in mesopotamia or earlier civilizations?

writing
How can a formal network and informal network help or hinder a business - include examples?

3rd grade
Are you sure that is 3rd grade? I am a 4th grader and I don't know any thing about it. ps. When you are done with homework go to clubpegiun. It is really cool.

9
Writing a descriptive essay of 210 and 250 words topic(my ideal job)

chemistry
Wow finally someone who actually was able to help me get the right answer!!! ^ (I'm not sure where you got 7.2g for CaCl2, but apart from that you did everything right!) Thanks for the help!

bill of rights
how does the bill of rights help the united states remain a democracy?

Algebra II
how do u graph the following: Y=-2xsq'd-6x+3

world econ
I need a website for graphs of food production. Other graphs would be helpful as well. Does anybody know? Thanks.

Chemistry
Light blue flame inside a Dark blue flame

Political Science
What does the Federal Reserve have to do with unemployment?

social science
What are three examples of times when a society lost order and turned to chaos. (could be a city, country, prison setting, etc

world history
how did geography help the romans build an empire ?

algebra 2
can you show me the set up

algebra 2
find the x and y intercept of the function y=3x+4 y=x^2+7x+12

chemistry
When Kl and Pb (NO3)2 is combined, is this a chemical or physical change?

math
from a base elevation of 76000 ft, a mountain peak in colorado rises to a summit elevation of 14321 ft over a horizontal distance of 15841 find the grade of the peak

pre calculus
evaluate if possible the function at the given values(s) of the independent variable. Simplify the results. f(x)=7x-4 a) f(0) b) f(-3) c) f(b) d) f(x-1)

calculus
f(x)=2x^2-4 f(x+delta x)-f(x)/delta x solve for the solution

ap calculus
ok this is a problem similar to it correct

ap calculus
yes i need help can you solve it out then i will ask you questions from then

ap calculus
write the general form of the equation of the lines throught the point (a) parallel to the given line and (b) perpendicular to the given point point- (2,1) line- 4x-2y=3

Math116
Evaluate: 4r for r=12 and s=6/s Simplify your answer= 6/s Is my answer right? Thank you.

Math
Lisa needs to make 2 times as many tunas as cheese sandwiches and 4 times as many ham as cheese sandwiches. If Lisa makes 56 sandwiches, how many of each of the 3 kinds will she make?

health topics
i need help with a interesting topic about obesity in america i want it to be unique and different that catches your attention i can't think of any at the moment

history
with the improvement in transportation and communication, would the original articles of confederation work for all 50 states today? Explain why?

spanish
need help with the rest

spanish
Fill in the missing blank. Estas aburrido? No, _________ cansado. Donde _______ la escuela? Esta en el parque Fairmount. Como es tu novio? _______ muy romantico?

chemistry
For CH3CO2H, give the hybridization and approximate bond angles for each atom except hydrogen. Also, draw an orbital bonding picture. Show all lone pairs. Can this be drawn on paint and uploaded to me? Thank you.

biology
LIST AND EXPLAIN FIVE USES OF SCIENCE

college essay
i need help cominmg up with An Experience That Has Changed My Life and I can think of any. I want a topic that will make a very good college essay.

Mum Bett
ok so she sued because she thought she didn't have any rights and freedom

Mum Bett
what was Mum Bett personal fight to uphold the Declaration of independence

declaraction of independence
ook great

declaraction of independence
its shows the rights and freedom that people should have

declaraction of independence
How did the Declaration of Independence influence American Government?

senior project
ok that sounds good

senior project
yes just need a little more

senior project
what can be inclued in the senior project about it

senior project
how can i do community service about this topic

senior project
how can i do a senior project about Obesity in America

senior projects
senior projects that are interesting and different from others

senio projects
what are some great senior project ideas?

Math/Algebra
How do I make a model with dots on graph paper that shows that 3 x 14 = 42? Thanks!

precalc
no

precalc
Determine whether the equation is linear in x. 5-3x=0 5=10/2 x+3=x-5

physics
An explorer is caught in a whiteout (in which the snowfall is so thick that the ground cannot be distinguished from the sky) while returning to base camp. He was supposed to travel due north for 4.5 km, but when the snow clears, he discovers that he actually traveled 7.8 km at...

physics
A car is driven east for a distance of 45 km, then north for 33 km, and then in a direction 32° east of north for 22 km. Determine the total displacement of the car from its starting point (counterclockwise from east).

physics
In the sum A+ B =C , vecto rA has a magnitude of 11.0 m and is angled 32.0° counterclockwise from the +x direction, and vector C has a magnitude of 15.0 m and is angled 18.0° counterclockwise from the -x direction. What are the magnitude and the angle (relative to +x) ...

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