Sunday
December 4, 2016

Posts by Katrina

Total # Posts: 236

science double check answers
1. What is the alignment of the Earth, moon, and sun during a lunar eclipse? A)Earth, sun, moon B)Earth, moon, sun C)Sun, Earth, moon** D)Sun, moon, Earth I know that for a lunar eclipse the earth is in the middle, so i just wanted to double check 2.A scientific law A)can have...
December 1, 2016

Science
1.When the effects of the moon and sun work together, this is what kind of tide? A)Neap tide B)Fall tide C)Spring tide** D)New moon tide
December 1, 2016

Math
25/x = 9/6 (where 25 is the tree's shadow, x is the unknown height of the tree, 9 is the man's shadow and 6 is the man's height) solve for x cross multiply 25(6) = (9)x 150 = 9x x = 150/9 do the division x = 16.6 the tree is 16.6 feet or about 17 feet tall
December 1, 2016

science
1. What is the alignment of the Earth, moon, and sun during a lunar eclipse? A)Earth, sun, moon B)Earth, moon, sun C)Sun, Earth, moon** D)Sun, moon, Earth I know that for a lunar eclipse the earth is in the middle, so i just wanted to double check 2.A scientific law A)can have...
December 1, 2016

science
1.A scientific law A)can have only one known exception B)can have any number of exceptions as long as we know about them ** C)might have many exceptions we don’t know about D)has no exceptions 2.Sunspots are A) solar storms that can interfere with communication satellites...
December 1, 2016

science
I'm going to go with B for number 1 and for number 2 I would guess but that wouldn't help, could you guide me to understand? I'm willing to learn, answers aren't JUST what i seek :)
November 30, 2016

science
1.A scientific law A)can have only one known exception B)can have any number of exceptions as long as we know about them C)might have many exceptions we don’t know about D)has no exceptions*** 2.Sunspots are A) solar storms that can interfere with communication satellites...
November 30, 2016

Social studies
I would agree with your answer
November 30, 2016

science
thank you for that extensive explanation, that was rather helpful so for the first question you would say its B?
November 30, 2016

science
I'm stuck on the following questions 1)The geocentric model of the universe states that the Earth is the center of the universe. This is an example of a A)scientific conclusion B)pseudoscience C)scientific law*** D)Scientific method Through process of elimination i know ...
November 30, 2016

Social Studies
Refer back to the text about the benefits of agriculture for ancient Egyptians. List three benefits. Write advertising slogans to promote agriculture to ancient Egyptians. Use your slogans to make a presentation about one or more benefits. Brainstorm one ad idea for online, TV...
November 14, 2016

(Math) PLZ CHECK ANSWERS
1. Which number is a solution of the inequality? 10.6<b A)-18 B)-9 C)7 D)14*** 2. Which number is a solution of the inequality? y+2>8 A)-5 B)-6 C)6 D)7*** 3. Which number is a solution of the inequality? 6>z(10-z) A)0 B)1 C)2 D)3*** 4. What are all the subsets of the ...
October 28, 2016

Math
5.23 x 44 rounded to its greatest place value
October 4, 2016

Math
A metal cylindrical cannister is 1' 3"long and has a diameter of 4 inches. What is the total surface area of the cylinder?
September 30, 2016

biology
Both of the following processes represent what? A. A baker using yeast to make dough rise. B. Inserting human insulin genes into bacteria to make insulin for diabetics. biotechnology transgenic organisms genetic engineering all of the above
September 14, 2016

physics
a stone is dropped vertically into a lake which one of the following statements best describes the motion of the stone at the instant it enters the water?a)Its velocity and acceleration are both downwards b)It has an upwards velocity and a downward acceleration c)Its velocity ...
July 8, 2016

Chemistry
What is the name for the following coordination compound or ion? Na3[Cr (NH3) NO2 Cl3]
July 6, 2016

math
Two men and a woman are lined up to have their picture taken. If they are arranged at random, what is the probability that (A) the woman will be on the left in the picture? (B) the woman will be in the middle in the picture?
July 1, 2016

I NEED HELP WITH THIS. PLZ
That's the one steve said
February 9, 2016

I NEED HELP WITH THIS. PLZ
Lesson 2:3-D Views Unit 2: Measurement Multiple Choice For questions 1-3, use the following model. 1. How many cubes are in the base of the model? (1 point) A. 3 B. 4 C. 7 D. 2 2.How many cubes would be shown in the right view of the model? (1 point) A. 3 B. 6 C. 7 D. 4 4. ...
February 9, 2016

pharmacy tech
3. You receive an order for 30 mL of 3% boric acid solution. The pharmacy has in stock a 1% and 5% boric acid solution in stock
December 21, 2015

Math
What is 503,000,000 as a percentage? I am doing this for a school project. It's really difficult to figure out. Just saying.
November 18, 2015

Math
What is 503,000,000 as a percentage?
November 18, 2015

English
Yes, thank you so much!
November 7, 2015

English
I think I might have got the prepositional phrases for number 7. The prepositional phrases are near the city, past the mountain is a pot of gold. The verb is for and the subject is you. I have a question, in the prepositional phrases, do you cross out the word and or do you ...
November 7, 2015

English
I really need someone to check my answers and I don't want to get the answers wrong. Cross out any prepositional phrases. Underline the verb/verb phrase twice. 1.) John walked along the trail during the summer. Subject:John Verb:walked Phrase:along the trail during the ...
November 7, 2015

English
There are two prepositional phrases right?
November 7, 2015

English
I really need someone to check my answers so please check. 1.) Hurry down the hall for your next meeting. Phrase: down the hall for your next meeting Verb: hurry Subject:(you)
November 7, 2015

adv functions
Write two possible quartic inequalities, one using the less than or equal to symbol (≤) and the other using the greater than or equal to symbol (≥), that correspond to the following solution : -6-√2 <x< -6+√2 or 6-√2 <x< 6+√2
October 6, 2015

Chemistry
1) How would you expect the solubility of the following to vary n a series of solutions of increasing ionic strength created by adding KNO3 a) ammonia b) ammonium chloride 2) If the ionic strength was increased by adding KCl, the solubility of which one of the above two ...
March 25, 2015

math
Anita has 2 sisters and 3 brothers. The mean of all their ages is 6yrs.What will their mean age be 10yrs from now?20 yrs from now?
February 25, 2015

chemistry
a balloon is filled with 15 L of an ideal gas of 20C. at this temperature the pressure of the gas is 1520 mm Hg. Suppose that the volume of the gas is reduced to 5 L at 290 K. what is the new pressure of the gas in atmospheres?
December 4, 2014

physics
The system in the Figure is in equilibrium. A mass M1 = 226.0 kg hangs from the end of a uniform strut which is held at an angle è = 41.0° with respect to the horizontal. The cable supporting the strut is at angle á = 27.4° with respect to the horizontal...
October 14, 2014

Physics
You are the juror of a case involving a drunken driver whose 972 kg sports car ran into a stationary 2094 kg station wagon stopped at a red traffic light. The cars stuck together and slid with locked wheels for 11.0 m before coming to rest. The coefficient of sliding friction ...
October 7, 2014

Science/Physics
I have this assignment too right now,and can't answer it..because the gravity of earth in the moon is not given:(
July 31, 2014

statistics
I need help to understand formula
July 27, 2014

statistics
A student of the author surveyed her friends and found that among 20 males, 4 smoke and among 30 female friends, 6 smoke. Give two reasons why these results should not be used for a hypothesis test of the claim that the proportions of male smokers and female smokers are equal...
July 27, 2014

Sociology
In the U.S., which social class has benefitted the most from the tax breaks?
July 19, 2014

Bio
A biologist measured the amount of DNA in several single diploid cells taken from a culture. He knew that these cells could divide mitotically, but not meiotically. His data is shown below: Cell Number and DNA content in micrograms: Cell 1 (11.1 micrograms) Cell 2 (5.4 ...
March 6, 2014

culturally diverse
D - In many Native American cultures, language occurs primarily within the context of work and learning important crafts.
December 29, 2013

culturally diverse
Young children's functional use of language within a work context is often observed in... a. mainstream industrialized societies b. triadic interactions in Mexico-American group c. rural Appalachian Black communities d, Native American cultures
December 29, 2013

math
Fantasia Florist Shop purchases an order of imported roses with a list price of $2,375 less trade discounts of 15/20/20. What is the dollar amount of the trade discount? (Points : 2.5)
November 27, 2013

math
What is the force exerted by a catcher's glove on a 0.15-kg baseball moving at 35 m/s that is stopped in 0.02 s?
November 11, 2013

math
What is the force exerted by a catcher's glove on a 0.15-kg baseball moving at 35 m/s that is stopped in 0.02 s?
November 11, 2013

Physics
A man is pulling on a rope with a force of 86 N directed at an angle of 64◦ to the horizontal. What is the x-component of this force? Answer in units of N What is the y-component of this force? Answer in units of N
November 2, 2013

Physics
Sue and Jenny kick a soccer ball at exactly the same time. Sue’s foot exerts a force of 49.9 N to the north. Jenny’s foot exerts a force of 119.7 N to the east. a) What is the magnitude of the resultant force on the ball? Answer in units of N b) What is the direction...
November 2, 2013

ALGEBRA HELP
bobpursely can u help me with a question?
October 21, 2013

algebra 2
thank you so much Reiny your a life saver ;)
October 21, 2013

algebra 2 help
can you please help me with this
October 21, 2013

algebra 2
how do i work it out i don't know how to do it though
October 21, 2013

algebra 2
simplify the expression -5+i/2i
October 21, 2013

ece
A preschool child can be designated a reader when he or she: a. writes words b. sounds out a word and is almost correct c. has both phonemic and phonological awareness d. understands and/or acts appropriately when looking at a written word
October 14, 2013

Literature
ok, thx for the help
May 31, 2013

Chemistry
Do you think this answer is correct? The nucleus subatomic structure is held together by a strong force. While, it holds three quarks together to make a nucleon it also holds the nucleons together which forms the nucleus. A nucleon could be either a proton or neutron. The ...
May 31, 2013

Science
What does this word spell in plate tectonics rorpsfgnloadeeasi
February 1, 2013

math
To find the perimeter, you just have add the length+width+length+width. In this case, the answer will be: 1 250m 80 80 45 + 45 ________ 250
December 18, 2012

physics
why and how does the blowing snow charge the fences?
November 8, 2012

math
how do I use multiplication and the Distributive property to find the quotient of 108/6
October 9, 2012

math
dave delivered 52 newspapers in all.saturday and sunday.he delivered 8 more newspapers on sunday than on saturday.how many newspapers did dave deliver on sunday.
August 30, 2012

Math
1.Describe the effects on the graphs y = sin k0(0 is theta) and y = cos k(0 is theta) as the value of k vaires.
May 2, 2012

6th grade history
thank you.really appreciate it :D
March 29, 2012

6th grade history
how did athens become rich?
March 29, 2012

math
The equation y = 400(1.03)x is an example of
March 1, 2012

math
In a particular small town, the population in 1995 was 1200. Ever since then the population has grown by 4% every year. If conditions stay the same, what is the approximate expected population in the year 2000?
March 1, 2012

math
Rewrite using only positive exponents: x−5y3 how do you rewrite without negative exponents?
March 1, 2012

chemistry
I need help in learning to find the correct information. I tend to spend hours and I still get frustrated. Maybe some helpful websites. Thank you
January 22, 2012

chemistry
Week 5, Day 4, respond to the problem statement assigned to you for this week. At a prominent state hospital, a 45-year-old woman is receiving a ‘combined modality' treatment for the initial stage of breast cancer. State the two aspects included in this treatment. ...
January 22, 2012

algebra
Rewrite with positive exponents. Assume that even roots are of nonnegative quantities and that all denominators are nonzero. (2x^2y-^1)^-6
December 20, 2011

english
Corrections: Cancer is known as the unbiased killer; it does not discriminate in the race, age, or sex of it victims. Lung cancer is the number one cause of cancer deaths for United States men and women. Lung Cancer takes millions of lives each year, sometimes without the ...
December 17, 2011

statistics
From the Arizona Department of Weights and Measures: Among 31 inspections sat a NAPA Auto Parts store, 88% failed. X= ?
December 4, 2011

physics
A six kilogram object undergoes an acceleration of 2.0 meters per second squared. Part a. What is magnitude of the net force acting on the object? Part B. If the same force is applied to a 4 kilogram object what acceleration is produced?
October 19, 2011

Calc
If a rock is thrown upward on the planet Mars with a velocity of 17 m/s, its height (in meters) after t seconds is given by H = 17t − 1.86t^2. (a) Find the velocity of the rock after one second. (b) Find the velocity of the rock when t = a. (c) When will the rock hit the...
October 17, 2011

math
(7+9)+3= 1+(9+5)=
October 6, 2011

Math
Find the cost function if the marginal cost function is dC/dx=2x-15 and fixed costs are $75.
August 26, 2011

Calculus
Find all points at which the graph of f (x) = x^3 −3x has horizontal tangent lines.
August 23, 2011

Chemistry
I need help writting a formula for: AgNO3(l) + PbNO3(l) + HgNO3(l) + HCl (l)
July 5, 2011

Chemistry
A liquid hydrocarbon (Cx Hy) is found to be 16.37% H by mass. A 1.158-g vaporized sample of the hydrocarbon has a 358 mL volume at 71.0 C and 749 mmHg. what is the molecular formula for this hydrocarbon?
June 21, 2011

Chemistry
3. A liquid hydrocarbon (Cx Hy) is found to be 16.37% H by mass. A 1.158-g vaporized sample of the hydrocarbon has a 358 mL volume at 71.0 C and 749 mmHg. what is the molecular formula for this hydrocarbon? 4. A 1.00 g Sample of C7H603 (s), us completely burned in a bomb ...
June 21, 2011

precalculus
Find an angle between o and 2pi that is coterminal with the given angle -8pi/3: 71pi/2: 11pi/7:
May 4, 2011

precalculus
Write and simplify the difference quotient for the function b(t)= 3t^2-4t+5 over the interval [7,7+h]
April 13, 2011

Calculus (pleas help I really need to check this)
Consider a window the shape of which is a rectangle of height h surmounted a triangle having a height T that is 1.3 times the width w of the rectangle. If the cross-sectional area is A, determine the dimensions of the window which minimize the perimeter. h=______ w=______ What...
April 11, 2011

Calculus (please help I really need to check this)
Consider a window the shape of which is a rectangle of height h surmounted a triangle having a height T that is 1.3 times the width w of the rectangle. If the cross-sectional area is A, determine the dimensions of the window which minimize the perimeter. h=______ w=______ What...
April 11, 2011

science
The resulting solution is saturated because 86 is what equals both of the grams of salt added to the water at degrees C. 15 g + 50 g = 86 grams
April 11, 2011

Calculus (pleas help I really need help with this)
The cross-sectional area is jus the rectangle...
April 10, 2011

Calculus (pleas help I really need help with this)
I tried that... it's not it... apparently there must be something wrong with the arythmetic but I can't find what it is...
April 10, 2011

Calculus (pleas help I really need help with this)
Consider a window the shape of which is a rectangle of height h surmounted a triangle having a height T that is 1.3 times the width w of the rectangle. If the cross-sectional area is A, determine the dimensions of the window which minimize the perimeter. h=______ w=______ What...
April 10, 2011

Calculus (please help!!!!)
Consider a window the shape of which is a rectangle of height h surmounted a triangle having a height T that is 1.3 times the width w of the rectangle. If the cross-sectional area is A, determine the dimensions of the window which minimize the perimeter. h=______ w=______ What...
April 10, 2011

Calculus (please help!!!)
Consider a window the shape of which is a rectangle of height h surmounted a triangle having a height T that is 1.3 times the width w of the rectangle. If the cross-sectional area is A, determine the dimensions of the window which minimize the perimeter. h=______ w=______ What...
April 10, 2011

Calculus
Hi, I wasn't posting under different names, I have just used my name and I was just posting the explanation I received from other tutor, I didn't understand some of it so I posted it again because right now it must be on page 5 or something like that... I'm not ...
April 10, 2011

Calculus
In a chemical reaction, substance A combines with substance B to form subtance Y. At the start of the reaction, the quantity of A present is a grams, and the quantity of B present is b grams. Assume a is less than b. At time t seconds after the start of the reaction, the ...
April 10, 2011

Calculus please help!!
Consider a window the shape of which is a rectangle of height h surmounted a triangle having a height T that is 1.3 times the width w of the rectangle. If the cross-sectional area is A, determine the dimensions of the window which minimize the perimeter. h=______ w=______ What...
April 10, 2011

Calculus
In a chemical reaction, substance A combines with substance B to form subtance Y. At the start of the reaction, the quantity of A present is a grams, and the quantity of B present is b grams. Assume a is less than b. At time t seconds after the start of the reaction, the ...
April 10, 2011

Calculus (please help!!!)
Consider a window the shape of which is a rectangle of height h surmounted a triangle having a height T that is 1.3 times the width w of the rectangle. If the cross-sectional area is A, determine the dimensions of the window which minimize the perimeter. h=______ w=______ What...
April 10, 2011

Calculus
In a chemical reaction, substance A combines with substance B to form subtance Y. At the start of the reaction, the quantity of A present is a grams, and the quantity of B present is b grams. Assume a is less than b. At time t seconds after the start of the reaction, the ...
April 10, 2011

Calculus
HI, Thanks for the explanation, that makes a lot of sense, I don't know why it didn't occur to me that mass can't be negative... but I typed those answers and I still get them both wrong... I don't know why...
April 10, 2011

Calculus
In a chemical reaction, substance A combines with substance B to form subtance Y. At the start of the reaction, the quantity of A present is a grams, and the quantity of B present is b grams. Assume a is less than b. At time t seconds after the start of the reaction, the ...
April 10, 2011

precalculus
For the Function, y= x(x-4)(x+8) Y-intercept is: X-intercept is:
April 4, 2011

Chemistry
Calculate the pH after 0.13 mol of NaOH is added to 1.00 L of the solution that is 0.57 M HF and 1.13 M KF. I got the answer of 3.66 to 3 sig figs, but it's wrong. Can you please tell me what I did wrong? -Thanks
March 27, 2011

precalculus
Twenty percent of a radioactive substance decays in ten years. By what percent does the substance decay each year?
March 3, 2011

precalculas
The doubling period of a baterial population is 20 minutes. At time t=100 minutes, the baterial population was 80000. What was the initial population at time t=0? Find the size of the baterial population after 4 hours.
March 1, 2011

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