# algebra II-URGENT

1,677 results, page 8
1. ## physical science

im sorry but im notiing others are gettin help before me with math, algebra, and i honestly think its being done on purpose..just because i keep asking.im justy worried about my test that is coming up..i honestly need help

asked by 45843 on July 19, 2011
2. ## Math

A waitress Nikia makes three dollars per hour +8 dollars in tips she goes to earn no less than \$26 today what is the algebra equation for that

asked by Melanie on December 20, 2016
3. ## algebra

can anyone tell me about polynomials please You need to be more specific in your question. Polynomials is just about half of a beginning algebra course.

asked by lily on May 20, 2007
4. ## Pre algebra

I need the answers to unit 2 lesson 13 pre algebra unit test

asked by Anonymous on February 12, 2018
5. ## Quantitative analysis

Matrix Algebra Assignment Let A= 4 −1 6 9 and B= 0 3 3 −2 Find: 1. A + B 2. AB 3. BA 4. A' (the transpose of A). 5. What is an Identity Matrix?

asked by Shavon on May 5, 2013
6. ## algebra

Thank you for helping my with my Algebra.. write an equation for 5 more than a number g is 6 less thn twice a number h

asked by michael on September 16, 2010
7. ## Math

I need help solving systems using elimination 3 * -3y equals - 3 2x minus y equals -5 how do I do this do not know algebra

asked by Tammy on April 20, 2018
8. ## Math

Does anyone know any good websites that i can test myself for my algebra test, like tests online or something like that?

asked by Lenea on February 14, 2010
9. ## Math

How long can I wait to see the answer of my question about Algebra ? Its been a long hour .

asked by Claudette on August 17, 2014
10. ## Physics Urgent!!!!!

OK, I know, I'm postin this way too many times but I'm halfway there now.... Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational

asked by Abia on May 2, 2011
11. ## Physics Urgent!!!!!

OK, I know, I'm postin this way too many times but I'm halfway there now.... Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational

asked by Abi on May 2, 2011
12. ## Social Studies (URGENT)

Pleae help. It's urgent! 10. Why did many Native people start adapting to Victorian society? a.) Was this the only way that things could have gone between the Natives and the colonists? Explain your response. b.) Why didn't the settlers adapt to Native

asked by John on February 15, 2010
13. ## maths

wat are the square brackets that are found in algebra Just one way of grouping the terms in an algebraic expression. You can also us () or {} besides []. In certain contexts each of these symbols can have other meanings too, but the context should make it

asked by crystabel on September 28, 2006
14. ## Implicit Differentiation

Find the slope of the tangent line to the curve (a lemniscate) 2(x^2+y^2)^2=25(x^2–y^2) at the point (–3,1) . I know that we are supposed to use chain rule for this problem but i think i am messing up on the algebra. Can someone please help me, i keep

asked by jasmineT on February 19, 2012
15. ## physics

A body of mass m is attracted to a 11 kg mass 31.2cm away with a force magnitude of 6.42 x 10^-8 Find m? I am having trouble with the algebra getting m by it self just show me the steps if you can

asked by john on November 15, 2012
16. ## math

Dave has received scores of 85,87,88 and 85 on his algebra test. What scroce must he receive on the fifth text to have an overall text score average of at least 88? please explain

17. ## ALGEBRA

JENNY GETS A TAXI TO HER HOUSE. THE TAXI FIRM CHARGES A £2 STANDING CHARGE AND THEN £3 PER MILE (M). WRITE THIS AS AN ALGEBRA EXPRESSION?

asked by lORRAINE on May 3, 2016
18. ## Geometry

Hi, I have to use algebra to find the coordinates of the point where two lines intersect, the first line passes through the points 4,3 and 10,0 and the second line is y=6. Any ideas would be very much appreciated, many thanks

asked by Tan on July 14, 2010
19. ## CALCULUS

Find a formula for the inverse of the function. y=x^2-x, x>=(greater than or equal to) 1/2 Please give me a step by step explanation. I think my algebra is wrong... Ty

asked by MATH on February 1, 2014
20. ## math

algebra: a car rents for \$35 dollars per day plus 19 cents per mile. you are on a dailt budget of \$73. what mileage will allow you to stay in your budget?

asked by Anonymous on January 23, 2011
21. ## math

yeah :/ anyone know algebra with "pizzaz" (yeah right,) pg 6? i know its "the ninja torttles chi squre test" ......idk but why? it wants us to show our work.

asked by nessie on September 30, 2010
22. ## Math

Shania is having trouble understanding her algebra assignment. To help her understand, she asks Mark why is not equal to . Which of the following responses would be best for Mark to give?

asked by Kaley on August 5, 2013
23. ## algebra

^96divided by 8 We'll be glad to critique your answer. What is the meaning of the ^ before the 96? Your question does not seem to be about algebra. Okay jessica, what is 96 divided by 8?...and the rest of the class will not help her...do you have the

asked by jessica on July 5, 2006
24. ## Aglebra, math

Hi I really need help with this question and I don't know a thing about algebra!!! If anyone can help me understand this that would mean a lot! So here's my question. Brad says that the literal equation a = 3b + 4c - a is solved for a. Do you agree? Why or

asked by Alyssa on October 5, 2016
25. ## Algebra

Does anyone have a study guide i can use so i can study before my algebra 1B semester exam tommorrow i looked all over the school website but i can ot find the one she recomended

asked by hi on April 16, 2018
26. ## algebra

if sin alpha is 0.28° where 0° is less than or equal to alpha less than or equal to 90°, evaluate cos alpha, tan alpha, sec alpha, cosec alpha and cot alpha. please help, it's urgent.

asked by liz on October 26, 2016
27. ## Math

Not Urgent But Please Check My Answer: A pencil at a stationery store costs \$1, and a pen costs \$1.50. Stella spent \$21 at the store. She bought a total of 18 items. Which system of equations can be used to find the number of pencils (x) and pens (y) she

asked by Nina on September 30, 2015
28. ## Calculus

So this one is confusing me: limit of n as it approaches infinity of (n{SIGMA}i=1) (1/(2^i) *the n is on top of the sigma notation and i=1 is at the bottom. I understand that 'i' would equal (n(n+1))/2 however the algebra from there confuses me.

asked by David on December 8, 2014
29. ## Boolean algebra

Simplify this function using Boolean algebra laws? I am stuck on this part of my homework (x2'x1'x0') + (x2'x1x0) + (x2x1x0') I know you have to use distributive laws to do this. Any help is appreciated. Thank you.

asked by John on October 23, 2012
30. ## Math

Your friend is taking an algebra class that began after ours. Write your friend an email explaining a general strategy for factoring in a very organized way.

asked by Caitlin on February 12, 2011
31. ## Math

Use algebra and the properties of limits as needed to find the limit. If the limit does not exist, say so. (X→-∞)lim : 44x^2-12x+82/11x^2 - 35x - 37

asked by West P. on April 26, 2011
32. ## Algebra

Hi, Any help on this would be very much appreciated. The graph y=3x^2+6x+9 is a parabola, I need to use algebra to find the equation of the axis of symmetry, I then need to use this information to find the coordinates of the vertex. Any ideas? Many thanks

asked by Sam on June 30, 2010

What do you call a female bug that floats? it has to do with algebra. It shows you solutions and graphs. the graphs have letters in front of them so you can try and figure out what the answer is.

asked by Kim on February 3, 2010
34. ## Math

Hello! I am needing some help on Algebra! It is hard ! Can you explain how to Simplify Algebraic Expressions? The easiest way? I have a test over it Friday, and i can't understand it at all! Can you help with these and explain? -12z+4(z-9)+30+z and

asked by Megan on February 5, 2013
35. ## Math - Calc 2/Algebra

I'm trying to find the partial fraction decomposition of: 10x^2+2x-2/x^2(x+1) I already found B=-2 and C=6 Plugging in the numbers, I get: 10x^2+2x-2=Ax(x+1)+(-2)(x+1)+(6)x^2 How do I solve this for A? Maybe this is just some algebra that I'm rusty on. But

asked by Anonymous on June 29, 2017
36. ## Statistics

A random sample of 80 students at a large school shows an average grade of 72 in Algebra with a standard deviation of 4. What is the standard error?

asked by Pearl on November 25, 2012
37. ## ENGLISH HELP!!!

A feature article about a plane crash would be more likely than a hard news article to include ? A)the date, time, and location of the crash. B)a profile of one of the survivors of the crash. C)statistics about other crashes involving the same airline.

asked by Corie on January 1, 2013
38. ## Math

A triangle has verticies of (1,3) (4,5) and (6,2). Is this a right angle triangle? Solve using algebra.

asked by Homework plx on November 17, 2017
39. ## Math

if I was doing algebra and it was 3/5a - (-4)=5 would I first subtract 4 from each side since when you subtract a negative you actually add it?

asked by Emily on January 11, 2008
40. ## math

does anyone have some of the answers of at least know some of the answers for the algebra 1 a part 1 semester exam

asked by gracelynn2938 on January 17, 2017
41. ## algebra

can any one show me where to get free online help with algebra? i need a tutor or someone to show me what im doing

asked by bobbi on July 17, 2010
42. ## English

Can someone please help me urgent. I need to rewrite theses two sentences and eliminate unethical aspects. The service contract...on the whole...applied to upgrades. 2. All our costs were within fair-use guidelines. 1. Upgrades were applied to the service

asked by Jennie on January 15, 2017
43. ## algebra

how do I convert 9/16 into a percent? Is this done differently in a algebric form? Divide 16 into 9.000, using the normal procedures of long division. This should give you 0.5625; then multiply the decimal by 100. This isn't algebra, by the way.

asked by help me understand on April 27, 2007
44. ## English (urgent)

can you give me 4 examples of informative texts..or websites where can I look for informative texts--4 paragraph informative texts...(i need it now)really urgent...please...

asked by daphnie on February 11, 2013
45. ## Accounting

At December 31, 2007, before any year-end adjustments, Bollis Company's Prepaid Insurance account had a balance of \$2,700. It was determined that \$1,500 of the Prepaid Insurance had expired. The adjusted balance for Insurance Expense for the year would

asked by jimmy on September 20, 2007
46. ## Socials Studies *URGENT*

Research Territory, Food, Shelter, Transportation and Effect of European contact for Ojibwa, Assiniboin, Cree, Chipewyan, Inuit. Please help this is URGENT. I can't seem to find "Effects of European contact" for any of the groups. Although I don't quite

asked by John on March 25, 2010
47. ## Physics

There is a charge that is 1uC and another charge that is 2 uC. They are 10 cm apart. I need to find a point where the electric field is zero. All I have is this kq1\a=kq2\(10-a)^2 where q1=1 where q2=2 where k=9*10^9 I am lost after this I know I use

asked by Victor on August 10, 2009
48. ## Math

Binomial Theorem using Pascal’s Triangle or nCr to find the coefficient then find the 27th term of (-3x+4y)55. Don’t forget to clean up the algebra.

asked by Coolest on February 3, 2017
49. ## Implicit Differentiation

Use implicit differentiation to find the slope of the tangent line to the curve y/x+6y=x^2–6 at the point (1,–5/31) . Again i think i'm messing up with the algebra here. I used quotient rule to get [(x+6y)(y')-(y)(1+6y')]/(x+6y)^2=2x I don't know how

asked by jasmineT on February 19, 2012
50. ## intro to algebra

how do i figure out this type of problem. 7(12t). im in college but never learned algebra in high school The seven multiplies by the innards of the parenthesis. 7*12t= 84t

asked by george on January 16, 2007
51. ## algebra

Janelle has \$ 20 and is saving \$ 6 per week. April has \$ 150 and spending \$ 4 per week , when will they both have the same amount of money ? i know by trial and error i will get 13 weeks, but how do i solve it by algebra ? please

asked by al on January 10, 2012
52. ## Algebra 2

Mrs. Jones algebra 2 class scored very well on yesterday's quiz. With one exception, everyone received an A. Within how many standard deviations from the mean do all the quiz grades fall ? Ó =3.1 95, 92,94,88,96,99,91,93,94,97,95,97

asked by Cam on April 1, 2016
53. ## English

I forgot to add these few more things. They are really urgent. Thank you. 1) I told my collegues about the possibility of carrying out a Comenius project on how to write the screenplay and shoot (make) a film. 2) As a matter of fact, they would rather be

asked by Henry2 on November 10, 2011
54. ## Math

A recipe for a special sauce calls for 4/5 of a cup of ginger and 1 1/4 cups of pineapple juice. How many cups of ginger would you need if 3 cups of pineapple juice are poured into the mixture? Math PLEASE HELP IT'S URGENT!!!!!

asked by Rachel Selimaj on November 13, 2014
55. ## Physics Urgent!!!!! I really need help with this

Sorry to repost this, again, but I still don't understand. Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be

asked by Abi on May 2, 2011
56. ## Algebra

If the cost of a cell phone has decreased 400% during the past 10 years, does that correspond to a cost decrease of four times? Explain your answer as though you were talking to someone who has never taken algebra.

asked by Brenda on June 16, 2011
57. ## algebra

Here are the scores of 13 students on an algebra test. 55 , 57 , 60 , 60 , 65 , 68 , 70 , 70 , 80 , 80 , 84 , 89 , 92 Notice that the scores are ordered from least to greatest. Give the five-number summary and the interquartile range for the data set.

asked by cathy on August 29, 2016
58. ## Algebra

What is the profit of 30 flight excursions if the set up fee is \$40.00 per person, \$800.00 rental fee for the hanger? I need this answer and I need it in a algebra equation, to show the work.

asked by Susan on June 21, 2010
59. ## Algebra

Hi! Today I was absent from my algebra class, and they learned how to recognize and factor the difference of two squares.. I've tried to figure it out from the book, but it's not making any sense... Can someone help? I'm trying to figure out this problem 1

asked by Anna on March 21, 2011
60. ## algebra

If the cost of a cell phone has decreased 400% during the past 10 years, does that correspond to a cost decrease of four times? Explain your answer as though you were talking to someone who has never taken algebra.

asked by JCEE on September 26, 2011
61. ## Physics but algebra problem

Having issue with algebra. 89N=ma 99N=m2a would you do something like plugging one into the other such as. a=89/m 99N=99/(2(89/m) prob is when i get a fraction in the denominator i get confused can someone help me. I'm trying to find the mass. Which i will

asked by Leah on September 23, 2009
62. ## algebra math, 8th grade

If point A is located at (0, -8) and B is located at (4, -5), what is the distance between them? A. 5 B. 6 C. 7 D. 8 I know I don't usually ask for just the answer (I generally give what I got) but this was due on the 6th! I was in the hospital for

asked by Tazia on December 21, 2017
63. ## 9th grade algebra/Ms Sue

Okay Ms. Sue. I am in 8th grade but I am taking Algebra with 9th graders. I am very confused with my previous problem. I have asked my Dad but we are both getting confused. Now I have come up with 22. Is this my correct answer?

asked by Reed on August 23, 2012
64. ## math

If the cost of a cell phone has decreased 20% a year during the past 10 years, does that correspond to a cost decrease of 200%? Explain your answer as though you were talking to someone who has never taken algebra.

asked by bus on February 25, 2011
65. ## math - 1 paragraph

Your friend is taking an algebra class that began one week after ours. Write out a paragraph or two, with examples if possible, explaining to your friend a general strategy for factoring in a very organized way.

asked by candy on February 23, 2009
66. ## Math

The followoing question comes from my Algebra II book and it goes like this: Thirty percent of the sulfur desiccated. If 42 tons did not disccate, how much sulfur was there in all? How do I solve this problem? All work has to be shown.

asked by Crystal on February 14, 2010
67. ## Algebra help

m having an extremely tough time with integers in algebra when simplifying algebraic expressions. No matter which method I use I still end up confused and end up with a completely different answer. Ex: 5t-{7t-[4r-3(t-7)]+6r}-4r

asked by marco on February 3, 2010
68. ## ALGEBRA

If the cost of a cell phone has decreased 400% during the past 10 years, does that correspond to a cost decrease of four times? Explain your answer as though you were talking to someone who has never taken algebra.

asked by TANGIE on March 3, 2011
69. ## algebra

I am having an extremely tough time with integers in algebra when simplifying algebraic expressions. No matter which method I use I still end up confused and end up with a completely different answer. Ex: 5t-{7t-[4r-3(t-7)]+6r}-4r

asked by marco on February 3, 2010
70. ## english

Identify the INCORRECT sentence. a. Amanda worked diligently on her algebra. b. Trudy bought a American-made car. c. My sister angrily slammed the door. d. You should concentrate closely on whatever you write.

asked by Anonymous on January 5, 2016
71. ## Physics HELP

an object 3.00 cm high is placed 20.0cm from a convex mirror with a focal length of magnitude 8.00 cm. Find the position of the image. (Im using 1over20.00 + 1overQ = 1over-8.00) and the answer is q= -5.71cm. can someone tell how to do the math.. I suck at

asked by walter on June 16, 2012
72. ## 9th Algebra

Im in 9th grade algebra. and we are learning adding and subtracting real numbers. im stumped on a couple of problems. I get confused when i see the absolute value lines. Does that change the munber? Do i just go on with the problem as if they werent there?

asked by Amanda on August 25, 2009
73. ## Algebra

I am great at math but for some reason can not wrap my brain around Algebra for the world! Please Help!! Im stumped! Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. -3x –

asked by June on November 18, 2010
74. ## statistics

I have done an entire project based on football scores from a certain team over the last 3 years and I'm not sure what information I can get from my answers. Ive done a frequency distribution table, Ogive, Histogram,cumulative frequency table, frequency

asked by Amy on December 17, 2013
75. ## math

1. The x-intercept of a line is -3. The y-intercept of a line is 6. What is the slope of the line? 2. What is the equation in slope-intercept form of the line described in Exercise 1? can you please explain and answer it?? im having lots of trouble with

asked by xxx on May 3, 2009
76. ## Algebra

Solve. Please show the algebraic inequality you used and show all of your work. Stephanie has the following scores on her algebra tests: 85, 92, and 71. What score must she earn on her fourth test in order to have an average of 80 or above?

asked by Geena on May 4, 2011
77. ## Algebra

I can find the finite differences, but how do I find the number of birds in July? owl.bcpnet. net/Algebra%202/ch6/section09/problem_solving.pdf

asked by Anonymous on November 25, 2014
78. ## High School Courses

How often do state colleges which are moderately competitive require trigonometry? Is trigonometry something like algebra that they expect you to have, or do they usually not care as long as you have the right number of math courses? Would it look better

asked by Evelyn on March 31, 2009
79. ## algebra

In algebra does a negative and a negative equal a positive?

asked by N~ on October 27, 2009
80. ## english

this is a scene of the book Dawn Bosco's on her way to summer camp. She can't wait for the fun to begin, but when her shell mirror and a favorite pin disappear, it's time for the Polka Dot Private Eye to investigate. can you tell haiku poem for this scene

asked by anu on January 30, 2010
81. ## chemistry f/u

Thank you Mr. bobpursley. I am still unclear on a few things. massethanol*Ceth(Tf-7.7)+masswater*Cwater*(Tf-27.1)=0 solve for Tf 17.75g ethanol x(Tf-7.7)+31.6g water x (Tf-27.1)=0 This is the algebra that I do not know how to derive to move to the next

asked by Ben on September 4, 2011
82. ## English

Identify the INCORRECT sentence. A. Amanda worked diligently on her algebra homework. B. Trudy bought a American-made car. C. My sister angrily slammed the door. D. You should concentrate closely on whatever you write. D

asked by Jim on October 16, 2015
83. ## Algebra I

Can anyone summarize the quadratic formula? I am trying to understand this for algebra without any unnecessary and overused words involved like Wikipedia and sites that give me a headache. I just want a paragraph (or more than if its impossible to

asked by Micah on March 21, 2011
84. ## History

European culture had a large impact on the native people of Texas. Which era changed the native culture the most? A. Exploration Era*** B. French Colonization C. Prehistoric D. Spanish Colonization Urgent!!!! I dont think its C because prehistoric is when

asked by HELP ME! on September 22, 2018

Homework Help Forum: Algebra-Please help-I'm confused Posted by Tom on Tuesday, September 21, 2010 at 8:09pm. This deals with quadratic functions-If I have a graph with h = (-5)and k =3 and they ask for the translation, would it be {5,3} or would the

asked by Tom on September 22, 2010
86. ## essay

During my four years in high school, I have taken a lots of classes to prepare for college. As I took ELD classes ( English Language Development ) during my freshman and sophomore year, I realized that I could not meet the college's requirement. So in my

asked by JJ on December 1, 2006
87. ## maths

really urgent plsss help... the digit at the ten's place of a two digit number is four times that in the unit's place. if the digits are reversed, the new number will be 54 less than the original number. find the original number. check your solution.

asked by shagun on October 23, 2015
88. ## Physics

Urgent. A density bottle weigh 0.25 when empty and 0. 75 when. Filled with water and 0.65N when filled with alcohol calculate the volume of water,the density of alcohol. Take density of water=1000kg/m3 acceleration due to gravity= 10m/s

89. ## chemistry

silver iodide powder has been used as and antiseptic and as and agent to seed clouds for rain . silver iodide is 45.9% silver by mass . if you separtate a 50-g sample of silver and iodide , how much iodide is into its elements, silver and iodide how much

asked by amanda mosley on September 18, 2012
90. ## matn

need help with word problem? half add it Find a number such that when added to numerator and denominator of 2/11 yields a fraction equivalent to 1/2? thanks for any help (x+2)/(x+11) = 1/2 x is the number you want. Now do the algebra. I will be happy to

asked by vince on March 9, 2007
91. ## math

from the looks of things I am in good company when it comes to having problems solving algebra equations. I hope you can help with this one I have been working on for two days and still don't understand. I need ordered pairs for y=5x-8 and the y intercept.

asked by kalaya on August 24, 2010
92. ## Physics/Maths

Keplers third law I understand. T^2/a^3 of one planet = T^2/a^3 second planet. But I can't do the algebra to solve for the second planet's a^3 (semimajor axis) Would someone walk me through the steps please? Thanks.

asked by charlie on June 11, 2009
93. ## Algebra 1

If Jeremiah takes 1/8 of the birthday cake, and Chabreal takes 16%, who takes more? Show you're work and conversions. -Algebra 1.

asked by Dani. on August 29, 2012
94. ## plz help me out** math

find a number such that 14 less than three times the number is 25. i think u subtact 14-3n=25 14-3n=25 won't get it. That gives a negative number. Try 3n-14=25. Solve for n. Im in algebra the answer is 14-3n=25.Promise me always get these problems right.

asked by valerie* on November 7, 2006
95. ## Derivatives

What is the fourth derivative of f(x)= e^-x^2. I got f''(x)=-2e^-x^2 + 4x^2e^-x^2 i need some help on find f''''(x) You have f(x) = e-x2 then f'(x) = -2x*e-x2 = -2x*f(x) f"(x) = (4x2 - 2))e-x2 = f(x)*(4x2 - 2)) f"'(x)= f'(x)*(4x2 - 2)) + f(x)(8x) =

asked by 413 on October 24, 2006
96. ## physics

What gives? projectile launched @ 10.0 m/s @ 45.0 degrees figured everyhting out go these three points I'm trying to apply my Algebra 2 class stuff to it to get the equation of the perabala (0,0) (5.1 , 20.4) (10.2 , 0 ) then i use matrix to find the

asked by physics on December 22, 2008
97. ## organic chemistry

urgent, please help me...this is about the separation and purification scheme... there is 4 group of mixture: a)benzoic acid, benzoin and 1,4-dibromobenzene b)fluorene, o-toluic acid and 1,4-dibromobenzene c)phenanthrene, methyl 4-aminobenzoate and

asked by Sunny on March 24, 2010
98. ## Math

URGENT! In a school, 8% of students are left handed. If 50 classes of 20 students are randomly selected, what is the probability of 10 classes have no left handed students? I know that this is a binomial distribution question, but I can't seem to do this

asked by Katie on November 21, 2015
99. ## math

Dan and Jana were assigned by their teacher to complete a chemical reaction 4 times in the last 12 minutes of lab time. What is the longest time that each reaction will take if the teacher gave them enough time? a.8 seconds b.3 minutes c.8 minutes d.3

asked by uzair on October 27, 2009
100. ## English

1. Choose two of the scientists you read about in the Stories of Scientists unit. Compare and contrast these scientists. Answer this question in no fewer than two paragraphs. Be sure to include specific details about each scientist’s life, career, and