Posts by abby

Total # Posts: 1,209

Math symbols
What does * mean in math? thanks for ur help Abby

statistics
Scores on the ACT test are normally distributed with a mean of 21.1 and a standard deviation of 4.8. If one ACT score is randomly selected, find the probability that it is greater than 20.

physics
how much work is being done if a 100 N box is lifted 3 meters off the ground???

7th grade
I am doing a battle chart in history class the I need to know who won the Gonzales battle Also i need the mexican leader and the texas leader and who won on in the battle of the concepcion and where the goliad battle took place and when it took place also i need all the grass ...

math
what multiplication fact could you use to find a number that can be divided evenly by 8 and by 9

math
If the volume of the ball is 288 pic cubic inches, what is the diameter of the ball?

us history
I need help finding information about the Industrial revolution. How it impacted American society economically, socially, politically, and morally. This needs to be a 500 word essay. Thanks for the help! :)

Physics HELP!
how is this equation right? when i multiplied all those numbers to get T1 i got a huge number...to plug it back in for T2 i would get a negative number...

physical science with earth science
Write a balanced chemical equation for the reaction for propane C3H8 burning in oxygen to for carbon dioxide and water vapor

math
880

science
A place or object used for comparion to determine whether something is in motion is called what?

math
60

8th grade
I don't understand constant rate of change can you give me some examples. The graph I have shows the depth of the water in a vase over 8 days

social studies
information about landform

math
61 devided by 6039

Science
if it takes 20 newtons to accelerate an object weighing 15 kg 0.1 meters per second squared to the west what is the force of kinetic friction?

math
A circular racetrack has a diameter of 200 meters. What is the approximate distance a car travels in meters for three full revolutions around the track? use 3.14 for pie.

trig
sin(pi/3)

world issues- amazon deforestation
I just need like facts on ways to stop deforestation. -_-

world issues- amazon deforestation
Are you asking me this?

world issues- amazon deforestation
Hi. I was assigned an essay that I have to get done by 2morrow. It is about Amazon rainforest deforestation. I have to sum everything up into 3 paragraphs. 1st paragraph- tell what's happening here; I already did this. 2nd & 3rd paragraphs- describe how you would stop ...

Math
Nope

Math
Rae runds a mile 20 times. Her average time is 5.2 mins. She wants to drop her slowest time 5.8 mins and find the ew average. Write and equation to find are her new average running time

8th grade
Maybe you should just make it as math instead of 8th grade. I suggest you post it agin.

math
Originally priced at $35 now on sale for 25% what proportion could you do to find d the discount of the price

Math
Originally priced ar 35 dollars now on sale for 25% find an proportion to find d. d/35 = 25/100

10th grade geo
An Important Fact About YOU! Worksheet.

math
jared spent 76 dollars in june. In july he spent 1/5 more money than he did in june which procedure can be used to determine the money he spent in july add 1/5 abd 75 multiply 1/5 abd 75 then add 75 multiply 1/5 and 75 divide 1/5 by 75 then subtact the result fron 75

Pre-algebra
Thank you for your help!

Pre-algebra
So 7t = -98. What is t?

english
If direct exposition means direct characterization, then true. Characterization is how the author helps you find out the personality traits of a character. Let's say if the story read; Yang was a very nice child from China. This would be DIRECT characterization. If the ...

english
Are you trying to ask if this is a correct sentence? If that is your question, than yes, it is a correct sentence. Only you need capitalization.

8th grade math
J=31-q or 31-q=J

Social Studies
WOW! That is ALOT of information!

algebra
Thank you I just didn't know if it was supposed to be a negative number or not. My math that I have is really confusing.

algebra
12 - 3b = what? for b = 4.3

algebra
a lot lot lot lot lot lot lot lot lot lot lot LOT!!! That is probably too big of a number to say.

french
check ending of tu form. Monica is intelligent. What is feminine adjective ending?

physics
Need equation: Mass of 4.24 kg acted on by external force that reduces velocity from 8.5 m/sec to 4.1 m/sec in 3.0 sec. Find magnitude of the retarding force?

physics
Mouse steals piece of cheese by rolling across the floor with a force of 5.0 N. With what acceleration does the cheese move? At what speed is the cheese rolling after 10 seconds?

Spanish 1
34. What's the opposite of alli. 36. Is lapiz masculine or feminine? Notice you are working with UN boligrafo.

6th grade
All you have to do to turn a fraction into a decimal is divide the numerator by the denominator. 5 divided by 8 = 0.625.

math
a bicycle rider left town at noon at traveled at a uniform rate of 15 miles an hour. at 2 pm the same day, a motorcycle rider left for the same place at a uniform rate 30 miles an hour higher. at what time did the motorcycle rider overtake the bicycle rider?

science
Mexico is actually the leading producer of silver followed by U.S., Canada, Australia, Spain, Peru, and lastly, Russia. Hope this helps Abby

enviroment
i have this quetion and answer thing and i am having troubles with the meanings can anyone help me?

algebra
Awesome! Thanks

algebra
If there was a problem like this: 2yx for y=8 and x=5, you would write it like this: 2(8)(5). Which do you multiply first? 8x5 then x2 or 2x8 then x5?

science
Yes. It will help us because it is an renewble energy souce. that is what I think.

Science
Should we use biomass?

6th grade
242

math Trig
find each ratio to 3 decimal places cot245degrees sec74degrees how do i do this?

Social Studies
Idunno

Spanish
sorry, I meant sentEnce.

Spanish
It mens where are you from. Dónde means where, and eres means you are. Put those in a scentance and it asks a question.

math
What is it......it is......????????????????!!!!!!!!!.

4th grade science
Wow this is a hard one.

3rd grade
the answer would be 50 because if he wants to be rounding to the nearest 10 then that's what it would be

TO MS. SUE
And soon

TO MS. SUE
Wow you guys rlly need to learn some respect

math
2/24 1/4

Calculus ll - Volumes
No, actually. It is y=1. I sketched out the solid of the equations, and I believe it's a washer.

Calculus ll - Volumes
Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified line. y=e^(-x), y=1, x=2; about y=2.

math
it is spelled like this eight million, forty-two thousand, one hundred seventy-six.

ap chemistry
0.12M

H. Physics
A plane travels 2.5 km at an angle of 35 degrees to the ground and then changes direction and travels 5.2 km at an angle of 22 degrees to the ground. what is the magnitude and direction of the plane's total displacement?

H. Physics 11th grade
while flying over the grand canyon, the pilot slows the plane down to one-half the velocity in item 3. If the wind's velocity is still 75 km/h toward the southeast, what will the plane's new resultant velocity be?

11th grade
A roller coaster moves horizontally, then travels 45 m at an angle of 30 degrees above the horizontal. What is its displacement from its starting point?

6th grade, social studies
is in goverment

A&P
___________are usually attached to rough endoplasmic reticulum and produce enzymes and other protein componds.

Calculus
let V be volume of the solid obtained by rotating about the y-axis the region bounded by y=sqrtx and y=x^2. find V both by slicing and by cylindrical shells. in both cases, draw a diagram to explain your method. I'm SO stuck!

Calculus
find volume of solid obtained by rotating region bounded by curves y=x and y=sq.rt x, about line x=2

reading
shoud i add a predicate or a subject to this sentence this baseball team.

business information system
Identify the ROI and NPV of the wireless order-taking system. ...

Math
So i was given a graph of h(x) and i am supposed to approximate h^-1(3) but i'm not sure about how to do it. could anyone tell me how to find the solution? THANKS!

Algebra 2
Make a table with a process column to represent each pattern. Write an expression for the number of tiles in the nth figure. The picture is a column of squares that is 4X6. In each figure its subtracting a square.

6th grade science acrostic
Helpppp!!!!!!!!!!I need help on the acrostic. Can you people help? Okay, I need to do an acrostic on photosynthesis, devoured,and extinct.....Thank you if you help.....Rlyyyyyy THANKS

Science
Why does the water of lakes and oceans look alike?

maths
z = x-y+4 z = y-w-3 z = w-x+5 Based on the system of equations above, what is the value of z? a) 2 b) 3 c) 4 d) 6 e) 12

economics
they are economically inefficient

math
What you saying

math
Thank you I thought so

Math
A survey was made of 200 students to study their use of the public library system. The findings were as follows: 60 used the Reader’s Guide. 28 used both the card catalog and the information booth. 68 used the information booth. 83 did not use the library. 43 used only ...

Chemistry
Predict the effect of each of the following on the indicated equilibrium system in terms of which reaction will be favored (forward, reverse, or neither) H2(g)+Cl2(g)<=>2HCl(g) +184 kJ A)addition of Cl2 B)removal of HCl C)increased pressure D)decreased temperature E)...

math
Without graphing, identify the slope and the y-intercept. y = -4x + 5

algebra
Use the discriminant to determine how many real-number solutions the equation has. s2 - 5s + 6 = 0

Geometry
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health
List 3 components of the environment Briefly describe the major pollutant in each category and their effect on health Explain how sustainable development affects the environment

health
List 3 components of the environment Briefly describe the major pollutant in each category and their effect on health Explain how sustainable development affects the environment

%%%%
thanks dr bob!! I remember now!

%%%%
what is the formula for finding a percentage of a dollar amount??? ex. 30 % of 233 is ??? Please help me! Thanks!

6th grade math
40/100=4/10=2/5 a percent is over 100-then reduce

Trig
How do I solve this problem? tan (30° + x)

Chemistry
If one strand of DNA has the sequence AATCCGTAGCTC, what would be the sequence of its complementary strand?

physics
What is cice and Hfice on here?

Calculus
Use the given vector to find a vector b such that compab = 4. a = ‹4, 0, 1› ‹s, t, >

Calculus
At what points does the helix r = sin(t), cos(t), t intersect the sphere x^2 + y^ 2 + z^2 = 26? (Round your answers to three decimal places. Enter your answers from smallest to largest z-value.)

Physics
why is the second part incorrect

Physics
An oscillator with a mass of 520 g and a period of1.2 s has an amplitude that decreases by 2.20% during each complete oscillation. At what time will the energy be reduced to 15.0% of its initial value?

Ag Bio
I'm stuck on a few questions. If you can just answer what you can- 25. Describe the role of an operon in a prokaryotic cell, and give an example of how an operon works. 31. The word transcribe means "to write out," and the word translate means "to express in...

Osciallations
You pull a simple pendulum of length 0.237m to the side through an angle of 3.50 degrees and release it. How much time does it take the pendulum bob to reach its highest speed? Take free fall acceleration to be = 9.80 . How much time does it take if the pendulum is released at...

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