6,726 results

How many days on average can you survive without food or H20?

math
Helppp me! Need this in about 10 min. earlier the better!!!! pleaseee:) anyways... neg. 9/10 plus neg. 1/6 =?

math
PLEASEEE HELPPP Evaluate exact values, if they exist? if any doesn't exist state so. a) (in randians) sin^-1(-1/√2)

About 70% of the human population can taste the bitter chemical phenylthiocarbamide (PTC), which is found in foods like broccoli. The allele, T, for tasting PTC is dominant over the allele, t, for not tasting it. Calculate the allele frequencies using the Hardy-Weinberg ...

A 0.60 kg sphere rotates around a vertical shaft supported by two strings, as shown. If the tension in the upper string is 18 N. Calculate the tension in the lower string? the rotation rate (in rev/min) of the system?

math URGENT
okay i need to find the domain and range of this z(x) = ãx^2 - 100 (everything is in the square root) so i think i found the domain i got [-10,10] but i don't know about the range i solved for x and got stuck here x=ãy^2 + 100 helppp pleaseee :)

A 2.0 kg ball moving with a speed of 3.0 m/s hits, elastically, an identical stationary ball as shown. If the first ball moves away with angle 30° to the original path, determine the speed of the first ball after the collision. the speed and direction of the second ball after...

A helicopter is lifting two crates simultaneously. One crate with a mass of 151 kg is attached to the helicopter by cable A. The second crate with a mass of 79 kg is hanging below the first crate and attached to the first crate by cable B. As the helicopter accelerates upward ...

biology
1. how do molecules of a polar compound differ from those of a nonpolar compound? 2. What happnens when ionic compounds are mixed with water? 3. what is capillarity? 4. Critical Thinking: Most automobiles have water-cooled engines. What must be true about a solution that can ...

Biology
why is there no production of ATP when detergent is treated in a test tube with mitochondria? in Aerobic and anaerobic respiration what is the final metabolic breakdown of molecule? 1 pyruvic acid 2 acetyl coenzyme A 3 citric acid 4 reduced coenzyme FADH2 5) ATP PLEASSEEEEEEEE...

biology
In two to three well-developed paragraphs, explain how the graph below helps support the concern that burning fossil fuels has changed the atmosphere. Describe, in your own words, the change shown in the graph and how this change is occurring in the atmosphere. i cant post a ...

Biology
Which substance does not leave the nephrons by active transport? a)Potassium ions b)Water c)Calcium ions d)Phosphate ions e)glucose I think its either water or glucose... Another question.. Two strategies- negative feedback and antagonistic hormones- have evolved to maintain a...

(39w+ 14 + 10w squared) / 72+ w =]

Math
f(x)=1/x, g(x)=3X+1 find: f(g(3)) how do i do thiss... f(g(-2)) g.g, g.f, f.g, pleaseee help:)thanks for your timeee

Math
f(x)=x/x^2 – x find limit??? Pleaseee thnks

CHEMISTRY HELP
IF ANYONE CAN HELP ME WITH MY HOMEWORK AND EXPLAIN EXACTLY HOW TO GET THE ANSWERSSS PLEASEEE HELP

math help pleaseee (: ! <345
sqrt32x + 3sqrt8x help please !

calculus
Solve the equation for x. e^ax=Ce^bx, where a cannot equal b Can someone explain this pleaseee!

Calculus
If x + 7y = 29 is an equation of the line normal to the graph of f at the point (1,4), then f'(1) = PLEASEEE HELP!

PsyDAG How can i inteview you?
remember that statistics assignment of ours? pleaseee

grammar

Chemistry

simple easy math question PLEASEEE HELPP!!!
is this true? log^2 x = (logx)^2

math

MATH
f(x)=x/x^2 – x simplify g(x)=????helppp

Physics HELPPP
(0 m/s)^2 - (23.7 m/s)^2 divided by 2(9.00 m/s)^2 ?

Math
Find all x, -4pi < x < 6pi, such that [cos(x/3)]^4 + [sin(x/3)]^4 = 1 PLEASEEE HELPP! :(

world cultures
i need help on knowing that the cultural changes between Umayyad and Abbasid. pleaseee! thank you

Find the surface area for the given prism a. 564in^2 b. 664in^2 c.1,120in^2 d.1,080in^2

HELPPP
NO ONE HAS RESPONDED TO ME ALL DAY !!!

science
If Deneb and Rigel were located at alpha Centauri's distance from earth, how would they appear? PLEASEEE HELPPPPPP!!!!!!!!!!

PHYSICAL SCIENCES
Which of the following elements has eight valence electrons? A. argon B. beryllium C. chromium D. oxygen . CAN SOMEONE HELP ME, PLEASEEE :D

Physicss
Fast pleaseee Calculate speed of a 50 kg boy travelling on his bike his kinetic e is 1250 J I did v= 2KE/m i got 50? Help

Pre-Algebra:HELPPP
Factor: y^3-3y the ^ is an exponent is the answer y(y^2-3)

HELPPP!! math
HELLP!! Can someone help me solve for y in this equation.? -4/5 = (y-2) / (4- (-1))

Algebra 1

Gr.12 ENGLISH
what are some major themes in the short story "The Storyteller" by H.H Munro(also known by pen name Saki) pleaseee help thanx :)

physics
Which truck has more momentum?? 20kg*m/s or 20000kg*m/s??? HELPPP!!!

HELPPP!! rate of change
The points (-1,2) & (4,y) have a slope of -4/5. What is the y coordinate for (4,y).?

S=1+2*(1/5)+3*(1/5)^2+4(1/5)^3...... If S=a/b, where a and b are coprime positive integers, what is the value of a+b?

math
Determine whether each value of x is a solution of the equation 7-3x=5x-17 a. x- -3 b. x-0 c. x-8 d. x-3 Helppp!!!!!

science -- urgent
can you pleaseee list all the things that Earth needs to provide us with life?? like energy, carbon, and so on.. THANKS A LOT!

us government
what are some of the legal fictions that Tocqueville discussed? HELPPP PLEASEE !!!

English
1. He is absorbed in biology. 2. He is very interested in biology. 3. He is into biology. ----------------- Are they all the same in meaning?

AP BIOLOGY
I have a quiz on genetics on friday in AP Biology and I would like some sites with good ap biology questions on them. I don't know any of them which I could go to.

physics
a kangaroo jumps to a vertical height of 2.55m.How long was it in the air before returning to Earth? pleaseee anwser it is due in 1 day!!!!

math help pleaseee (: ! <345
the sales tax rate in a certain state is 5% find the total price paid for a apair of shoes that cost \$47

calculus
find the volume of the unlimited solid obtained by revolving y=1/(x^4 +1) around its asymptote, show work. helllpp pleaseee, I have no idea how to do this...

Alg
.Write an algebraic expressoin for4 times the sum of q and p HELPPP PLZZZ :)

determine the point of intersection y=logbase 10(x-2) and y=1-logbase 10(x+1)

STATISTIC
z = 1.8 for Ha: µ > claimed value. What is the P-value for the test?   A. 0.9641 B. 3.59 C. 96.41 D. 0.0359 My answer is B ,NEED HELP PLEASEEE

world histor
what are three major events, ideas, or poicies that contributed to the end of the soviet Union? including something about easern europe! help pleaseee!!

5: 2 = 8 : 10 please explain to me how to do thissss :( im so lost and i have to one to turn to or any math books or anything.

POINT H,I,J AND THREE POINTS ON A LINE W/ COORDINATE -4/5 , -1/SQRT5 AND -1/10. WHICH POINT BETWEEN THE OTHER TWO ?

What hazards do humans face when they are in space and what technologies have been developed in response to these hazards?

social studies
i need a map of washington state that has the major cities physical features and the borders of washington and boundries pleaseee !!!!!!!!!!!!!!!

math
write a four equations in slope-intercept form of four different lines that are parallel and graph the line ?? HELP pleaseee!! thank you

Biology
Is 9th grade biology hard? Is it interesting...?? I love life science but I just wondering if 9th grade biology hard??? I'm taking biology next year.

chemistry, i need helppp like a.s.a.p!!!!
What is the density of a 23.92 g object block if the dimensions: length = 10.6 mm height = 5.47 cm width = 0.0352 m

chemistry
The reaction equation below shows the formation of aluminum oxide. Which set of coefficients balances the equation? Al + O2 ?Al2O3 A. 1,1,1 B. 2,3,5 C. 2,4,5 D. 4,3,2 . can someone help me pleaseee!!

Math
What is neg. 9/10 + neg. 1/6? Pleaseee help im stuck:/

Biology
The allostery of an enzyme governor is likely to take two forms.They are? A.active and regulatory B. rigid and flexible c. active and passive e. regulatory and relaxed http://en.allexperts.com/q/Biology-664/biology-73.htm

pre calc
how do uu find the x int. , y int. , domain range asytote of this equation y=log to the base 10 (2x+3/x-5) pleaseee need to understand before the test tmr!!!!

physics/algebra HELP!!!!
i am having so much trouble rearranging these equations! i know the answers to them but i don't understand how to get them.. The original equation is W= Q(B-C)/C what is B? what is Q? What is C? B is supposed to be C(W+Q)/Q Q is supposed to be WC/(B-C) and C is supposed to be ...

ART Check
How would a visual effects designer working on an animated movie with human characters best use knowledge of biology? Knowledge of biology can help the designer to create accurate human features.**** Knowledge of biology can help the designer to create an action packed film ...

I HAVE A MATH TEST TOMORROW HELPPP PLEASE!
im not sure how to find the first four terms of each arithmetic sequence tn=4+(n-1)(3) helpp me pleasee!

I HAVE A MATH TEST TOMORROW HELPPP PLEASE!
im not sure how to find the first four terms of each arithmetic sequence tn=4+(n-1)(3) helpp me pleasee!

MUSIC HELPPP!!!!!!!!!!!!!!!!!!!!!!
A blank is a mechanical or electronic device used to keep a steady tempo a- metronome b- crescendo c- ritardando d- bar line

A cable with 21.2 N of tension pulls straight up on a 1.10 kg block that is initially at rest. What is the block's speed (in m/s) after being lifted 2.42 m assuming that the local acceleration due to gravity is 9.80 m/s2?

Enriched science
What is the goal of synthetic biology? A. The goal of synthetic biology is to mimic living cells B. The goal of Synthetic biology is to generate new tissues to replace damage tissues C. The goal of synthetic biology is to engineer living cells to perform specific functions D. ...

Could you please explain to me: how was the structure (Collosus of Rhodes) effective for it's stated purpose? I don't understand the question and I need something for my project. Pleaseee.

SCIENCE helppp!!
Our sun is what scientists call a "yellow-green star." Does it emit energy in the frequency of red light? I have no idea!

the worksheet says to copy and place parentheses to make each statement true. . . but i have NO ideaa what that means..? cann anyone helppp!

Helppp
IF A is the median of {1,2,3...,10}, and B is the median of 1,2,3,4,...11, what is the average (arithmetic mean) of A and B? Express your answer as a decimal? "{}" is no different from B

pre-calculus
how do uu find the x int. , y int. , domain range asymtote of this equation y=log to the base 10 (2x+3/x-5) pleaseee need to understand before the test tmr!!!! No one has answered this question yet.

pre calc
how do uu find the x int. , y int. , domain range asytote of this equation y=log to the base 10 (2x+3/x-5) pleaseee need to understand before the test tmr!!!! No one has answered this question yet.

chemistry (helppp me)
what is the bond order for BeF2? according to the lewis structure? ....according to MO diagrams its 0. 16 valence e-

chemistry... HELPP
Place charges and electron dots as needed on each ion. As Se Br K Ca Ga. I answered: As3+ Se2- Br- K+ Ca2+ Ga2+ but i got it wrong so please helppp!!!

science helppp.
4. Small pieces of rock that enter Earth's atmosphere at speeds of 15 to 70 km/s and burn up are called ____. (1 point) stars meteors meteorites asteroids

algebra

math

Physics
Find the minimum stopping distance for a car moving at 108km/h if the coefficient of static friction between the tires and road is 0.9 I really don't understand pls helppp

Physics
An object moving to the right has a positive acceleration which is decreasing. Is this object speeding up or slowing down? Explain why? Please helppp

english
which is not an example of an idiom found in "Miss Rosie"? a. "when I watch you" b. "[you] used to be called" c. "waiting for your mind" d. "I stand up" i remember asking this before a long time ago...i think someone siad both a and b are correct, but that can't be. there has ...

biology tutor on jiskha
i post my biology questions here today and few days ago no teacher reply. there not any biology tutor on here?

Math
My son has the numbers 1-12. In a square all sides must add up to 25. Each number can only be used once apart from the corners as they will be used twice to form the square pleaseee hellpppp

US HISTORY
Could someone help me conclude an essay on prohibition. I am writing: even though there were laws and movements for prohibition, it actually didn't work. PLEASE HELPPP!!!

statistic math
the local weatherman has been accurate (successful) in his forecast 80% of the time. find probability that he is accurate exactly 3 of the next 5 days. helppp

helppppp math helppp!
the fernrod motorcycle company invested 250,000 at 4.5% compounded monthly to be used for the expansion of their manufacturing facilities. how much money will be aviable for the project 3.5 years?

ELECTRICITY AND MAGNETISM
a dust particle with mass =5.0*10-9 kg and charge q =2.0nC starts from rest at point a and moves in a straight line from a to the point b ! what is its speed V at point b? please some on SOLVE it and send me ON my emial after got solved pleaseee ?

physics
So in physical science i'm learning about vectors using the pythagoream theorem, and when i get what c equal i wanted to know if i round to the next highest number, put it is a decimal, or do nothing at all. Helppp pleaeee[:

HELPPP ASAPPP
An archeitect is designing a rectangular fountain for the city park. It's area is represented by 16x-40. Factor this binomial to determine the greatest lengh and width measurements that fountain could have?

HELPPP
Solve the linear programming problem by the method of corners. Minimize C = 5x + y subject to x + 3y ≥ 43 x + y ≥ 27 x ≥ 0, y ≥ 0

Everybody hw help who go facebook
I don't use facbook.but hw essay topic what should people do to get rid out of facebook? What should they do if they r addicted to it? Ples helppp

Chemistry 2 Ap
Can someone please help me ? What mass of glycerol must be dissolved in 200.0 g of water to give a solution with a freezing point of -1.50? im not sure how to even start this problem. I think i would find the moles in water first, then the grams in glycerol after? Pleaseee help!

physics
A 200g Nerf dart is shot from a dart gun with a kenetic energy of 3.60J. What was the initial speed of the dart? >>> change g into kg Formula(i think) is: Ek=1/2 mv2 Helppp?

MATH PLEEASEEE HELPPP
If the outliers are not included in the data set below, what is the mean of the data set? 42, 43, 46, 48, 57, 60, 96, 59, 38, 68, 29 47 48 49 52 is it c

social studies
confucianism lost influence because__________ the sui and early tang dynasties . people wanted a more _________ escape that promised _________ from _________ (plz helppp)

Physics helppp
A 67.0 kg skateboarder wants to just make it to the upper edge of a "quarter pipe", a track that is one-quarter of a circle with a radius of 2.55 m. What speed (in m/s) does he need at the bottom assuming that the local acceleration due to gravity is 9.80 m/s2?

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