Questions Asked on
May 14, 2015

chemistry: electrochemistry unit
The red wire on a voltmeter is the cathode and the black is the anode. This would also give a positive reading on the voltmeter. How would I explain why this is?
asked by Mike 
Physics
A satellite of the Earth has a mass of 1550 kg. It orbits Earth with a mean radius of orbit of 7.00 x 10^6 m. a) What is the gravitational potential energy of the satellite with respect to Earth?
asked by john 
math
An insurance company wishes to examine the relationship between income (in $,000) and the amount of life insurance (in $,000) held by families. The company drew a simple random sample of families and obtained the following results: Family  Income  Amount
asked by lilly 
Algebra please help
1.(9m+6)+(5m6) A:4m+12 B:14m+12 C:14m12 D:4m*** 2.(3r²+7r+1)+(4r²8r2) A:7r²+15r1 B:7r²r1*** C:7r²15r3 D:r²r1 3.(6h+1)(9h+4) A:3h3*** B:15h5 C:13h+3 D:3h+5 4.(m²m4)+(m5) A:m²2m+9 B:m²+2m9 C:m²2m9 D:m²9***
asked by GummyBears 
English
"Let's look for Ferdinand. I must find him  dead or alive." =============== In this sentences, what is the role of "" in the second sentence? would you paraphrase the second sentence?
asked by rfvv 
maths
what should be multiplied to number 103875 to make it a perfect square
asked by shivangi mishra 
science
what is the change in momentum when a body dropped from a height of 20 m and hits the ground and rebounds with the same speed?
asked by meena 
Math1210
The perimeter of a rectangular field is 300 meters. This field is to be fenced along three sides only. The fencing along it's two lengths and onewidth is to be done at $50 per meter. If the total cost of fencing is $12000, what are the field's dimensions?
asked by Tonja 
math
A popular extreme activity is bungee jumping. A person whose ankles are attached to a bungee cord, jumps off a ledge and bounces upsidedown in midair. Suppose a person jumps off the ledge and falls 122 ft before rebounding. Consider the point at which
asked by Anonymous 
triginometry
Two sides of a parallelogram are 9 and 13 with an included angle of 57 degree & 29 minutes.fine the distance between the longer sides.
asked by irien inso 
exams
Could you please give me some details about SAT scholarship exam?
asked by Dean 
Math
Simplify 5x5y+3+x+2y3.
asked by Alex 
math
a ship leaves point A and travels 60 miles due east, then travels northward 59 degrees to point C, and travel 60 miles to point C, find the distance from point A to point C
asked by jojo 
Math
The Pont du Gard near Nîmes, France, is a Roman aqueduct. An observer in a hotair balloon some distance away from the aqueduct determines that the angle of depression to each end is 54° and 71°, respectively. The horizontal distance between the balloon
asked by Frances 
History
How did participation in other reform movements help strengthen the women's movement? A)Women's struggles in other groups made them want to have a group where they could be in charge. B) Women's success in reform movements made them question the
asked by Please help ASAP 
health
How many American adults does OCD affect each year?
asked by kc 
MATH PLEASE HELP
A single, standard number cube is tossed. What is the probability of getting a number other than 6? A. 1 B. 1÷3 C. 5÷6 D. 1÷6 A standard number cube with the numbers 1 through 6 is rolled. Find the probability of rolling a number less than 4 A. 1 ÷ 4
asked by Priscilla 
Geometry
If mADC = 7x+3 and mDCB = 5x+9, then mDAB = ?
asked by Jordan 
MATH PLEASE HELP THIS IS A TEST!!!!!!!!!!!!!!!!
Which events are NOT independent? Landing on heads after tossing a coin and rolling a 3 on a 6 sided number cube Choosing a marble from a jar and landing on tails after tossing a coin Choosing a 5 from a deck of cards replacing it and then choosing an ace
asked by Priscilla 
Personal Finance
The Hernandez family is experiencing some financial pressures, even though the couple has a combined income of $66,000. Also, their eldest son, Joseph, will start college in only three years. Maria is contemplating going to work full time to add about
asked by Marie 
Life orientation
Give five consequences that xenophobia have on comunities.
asked by Dean 
Chemisty
The activity of a radioisotope is 3000 counts per minute at one time and 2736 counts per minute 48 hours later. What is the halflife of the radioisotope?? a) 831hr b)521hr c)361 hr d)1.44hr
asked by Michelle 
probability
Problem 2: Oscar's running shoes Oscar goes for a run each morning. When he leaves his house for his run, he is equally likely to use either the front or the back door; and similarly, when he returns, he is equally likely to use either the front or the
asked by RVE 
probability
Problem 3: Checking the Markov property For each one of the following definitions of the state Xk at time k (for k=1,2,…), determine whether the Markov property is satisfied by the sequence X1,X2,…. A fair sixsided die (with sides labelled 1,2,…,6)
asked by RVE 
algebra  please help!
Liam is single. He has no children and an adjusted income of $26,700. Find his income tax. A. $1,735 B. $2,185 C. $2,732.50 D. $1,835 Please walk me through on how you got the answer..
asked by zek 
Townview
Elaine is painting a fence. She knows that she needs 1 gallon of paint for each 10 feet of fencing. The fencing will enclose a rectangular yard that is 3 yards long and 2 yards wide. How much paint does Elaine need? (Remember 3 feet = 1 yard)
asked by Michelle 
statistics
A sample of 65 nightschool students' ages is obtained in order to estimate the mean age of nightschool students. x bar = 25.2 years. The population variance is 28. (a) Give a point estimate for ì. (Give your answer correct to one decimal place.)
asked by haley 
English
The word propse has been borrowed from the latin /propustius/ meaning "set forth". In which sentence is the word /propose/ used correctly? I will propose a new budget next week***** When you set up a propose, be certain it is correct. The seller
asked by Elliot 
Language Arts Ms. Sue?? Writeacher?? Reed?
Which of the following sentences contains a pronoun in the objective case? What costume should I wear to the party tonight? Maybe Martha will loan me something.*** Her costumes are always the best. She won first prize in a Halloween contest last year!
asked by Amy 
Social Studies
Please check my answers??? 4. Trade and travel among the regions of South America have been affected by a. natural resources and vegetation b. high mountains and dense rain forests (I picked this) c. the Caribbean Sea and the Pacific Ocean d. Argentina and
asked by Jay 
English
1 What is the participial phrase in the sentence? They heard the girl crying softly in the restaurant. A) They heard ***** B) the girl C) crying softly D) in the restaurant. 2 Danielle reached into her bag. She was looking for her wallet. Which sentence
asked by Elliot 
math
Find the product of (2a + 3b)(2a − 3b). A. 4a2 − 6b2 B. 2a2 − 3b2 C. 4a2 + 12ab − 9b2 D. 4a2 − 9b2 plz help
asked by jill 
math
An architect designs a house that is 12m wide. The rafters holding up the roof are equal length and meet at an angle of 68 degrees. The rafters extend 0.6m beyond the supporting wall. How long are the rafters?
asked by sharon 
Calc1
Use a graph to give a rough estimate of the area of the region that lies beneath the given curve. Then find the exact area. y = sec^2 x, 0 ≤ x ≤ π/4
asked by TayB 
Math
With transverse axis parallel to the xaxis, center at (2,2), passing through (2 + 3sqrt2, 0) and (2 + 3sqrt10, 4)
asked by Allyssa 
Calc 1
Use a graph to give a rough estimate of the area of the region that lies beneath the given curve. Then find the exact area. y = 6 sin x, 0 ≤ x ≤ π
asked by TayB 
Calc 1
Use a graph to give a rough estimate of the area of the region that lies beneath the given curve. Then find the exact area. y = 5th root(x), 0 ≤ x ≤ 32
asked by TayB 
Math
Center at (2,5), conjugate axis parallel to the yaxis, slopes at asymptotes numerically onesixteenth times the length of the latus rectum, and distance between foci is 2sqrt145.
asked by Allyssa 
Calc 1
Use a graph to give a rough estimate of the area of the region that lies beneath the given curve. Then find the exact area. y = x^−3, 1 ≤ x ≤ 5
asked by TayB 
Language arts
1 What is the participial phrase in the sentence? They heard the girl crying softly in the restaurant. A) They heard B) the girl C) crying softly ******* D) in the restaurant. 2 Danielle reached into her bag. She was looking for her wallet. Which sentence
asked by Elliot 
Chemistry
For half reactions, is the equilibrium sign used? example: Zn >Zn^2+ + 2e^ (just arrow) OR Zn Zn^2+ + 2e^ (equilibrium sign)
asked by Mike 
nutrition
Created a nutritional care plan for the client. Included an evaluation of nutritional risk, listing of interventions, and expected outcomes. Listed the goals of medical nutrition therapy for the patient and suggested an appropriate diet. Identified whether
asked by lulu 
Language Arts Ms. Sue?? Writeacher?? Reed?
"President Lincoln's Declaration of Emancipation, January 1, 1863 by Frances E. W. Harper It shall flash through coming ages, It shall light the distant years; And eyes now dim with sorrow Shall be brighter through their tears It shall flush the mountain
asked by Amy 
Math
Can someone help me? If a and b are any two real numbers, explain how you calculate the difference a – b. Be sure to include the following in your explanation: a. A description of the relationship between addition and subtraction b. How you can use a
asked by Sara 
Hi, for my career. I'm 21
Hi, what are some good names for a Fashion company? I came up with Origin Moon, want some more ideas though.
asked by Bethany Latham 
Math 100
A triangular prism measures 81 cm long. Its cross section is an equilateral traingle with a base of 16 centimeters and a height of 14 cm. Find the surface area of this triangular prism.
asked by LINDA 
math
Completely factor the expression 2a3 − 128. A. 2(a − 4)3 B. 2(a − 4)(a2 + 4a + 16) C. 2(a3 − 64) D. Prime Completely factor the expression 7(x − y) − z(x − y). A. Prime B. (x − y)(7 − z) C. (x − y)(7 + z) D. (x − y)2(7 − z)3 Find
asked by realiesna 
Science
A fishtank with inside dimensions of 164 cm X 76 cm X 96 cm is filled with water. What is the volume in cm3 of water required? What is the mass in grams of the water required? What is the mass in kilograms?
asked by Angela 
Science
A fishtank measures 11 ft X 18 ft X 12 ft in English dimensional units. If water weights 62.4 lbs/ft3, what is the weight in lbs of the water filling the tank?
asked by Shaterri 
Science
Find the density in g/cm3 of a 1573 cm3 piece of metal having a mass of 46 kg.
asked by Angela 
math
Completely factor the expression 16t3 − 50t2 + 36t. A. 2t(8t − 9)(t − 2) B. Prime C. 2t(8t + 9)(t + 2) D. 2t(8t − 25t + 18) Completely factor the expression 48u4v4 − 18u2v2 − 3u8v5. A. Nonfactorable
asked by Kenny D 
Math help please
What is the probability of a number from 112 being P(a factor of 12)? 12.5% 25% 50% 62.5%
asked by Caleidoscope 
psychology
PLEASE HELP LAST QUESTION.??? Among William James's contributions to the science of psychology is that he A. he wrote the first American text in psychology b.. developed a psychodynamic treatment for mental illness. c.experimented with classical
asked by karla 
Math
For (x4)^2/36 + (y1)^2/25 = 1, are the vertices (2, 1) and (10, 1)?
asked by Anonymous 
For my future, I'm 13.
I am working towards making my career a Fashion Designer. I know I am young, but you have to know what you want. I have come up with some names for the store, Origin Moon and Freed + Mavis. I need some more ideas. I would prefer not to have my name in the
asked by Cora 
lanugage
what is the prepositional phrase in the sentence? The family drove to the store. a. the family drove b. drove to the store c. the family d. to the store a?
asked by Lily 
math
PLEASE HELP I WOULD REALLY APPRECIATE IT! 1. Write an expression to describe a rule for the sequence. Then find the 100th term in the sequence. 3,10,17,24,31,38 ANSWERS: A) n+7;707 B) 7n:700 C) 7n4;696 ** D) 6n4;596 2. Write a rule for the function
asked by anonymous 
math
Completely factor the expression 16t3 − 50t2 + 36t. A. 2t(8t − 9)(t − 2) B. Prime C. 2t(8t + 9)(t + 2) D. 2t(8t − 25t + 18) Completely factor the expression 48u4v4 − 18u2v2 − 3u8v5. A. Nonfactorable
asked by tina 
MATH
For questions 1 and 2, write each expression using a single exponent. 1.x^9  x^2 A.x^11****** B.x^7 c.7 D.x^5 2. h^14  h^3 A. h^9 B. 1  h^9 C.h^19***** D. h^9 Are these the correct answers or do I have to subtract the exponents? Thank you
asked by Elsa 
Calculus
Center at (2,5), conjugate axis parallel to the yaxis, slopes at assymptotes numerically onesixteenth times the length of the latus rectum, and distance between foci is 2 sqr t145.
asked by Ruby Ann 
math
Given the points A(0,0), B(4,3), and C(2,9), what is the measure of ABC?
asked by sharon 
English
1. Which of these lines contains the clearest example of dialect in poetry? A.) "I'll get a blessin' wi' the lave..." B.) "By the stream & o'er the mead..." C.) "To such a deep delight 'twould win me..." D.) "But oft, in lonely rooms, and 'mid the din..."
asked by Cassie 
Math
For a math homework assignment, Karla found the area and perimeter of a room of her house. She reported that the area of her rectangular living room is 180 square feet and that the perimeter is 54 feet. When drawing a sketch of her living room the next
asked by Anonymous 
English
6.) "Then felt like some watcher of the skies/When a new planet swims into his ken..." This excerpt from John Keats's "On First Looking into Chapman's Homer" is an example of a(n) A.) metaphor B.) simile C.) stanza D.) apostrophe Answer: 6.) B Thank you
asked by Cassie 
English
7.) "To Mrs. Saville, England, St. Petersburg, Dec. 11th, 17" You will rejoice to hear that no disaster has accompanied the commencement of an enterprise which you have regarded with such evil foreboding..." This excerpt from the introductory portion of
asked by Cassie 
math
what is 1255 to the nearest 3000
asked by hao 
English
Read this excerpt from Alfred, Lord Tennyson's "Crossing Bar." "For though from out our bourne of Time and Place/The flood may bear me far,/I hope to see my Pilot face to face/When I have crost the bar." Which mood does Tennyson evoke as he contemplates
asked by Cassie 
English
9. Read the excerpt from Robert Browning's "My Last Duchess." "She thanked mengood! But thanked/SomehowI know not howas if she ranked/My gift of a ninehundredyearold name/With anybody's gift..." Which of these best describes the speaker's attitude
asked by Cassie 
maths
what is 453776578665432 x 3467+324432534677797= [with out using a Calculator.
asked by hao 
maths
what is 454456x45647+34455456444453287= with out using a Calculator
asked by hao 
English
10.) "Glory be to God for dappled things/For skies of couplecolor as a brinded cow..." Which of these best describes this excerpt from Gerard Manley Hopkins's "Pied Beauty"? A.) It is an example of sprung rhythm. B.) It is an example of iambic
asked by Cassie 
Math
Center at (2,5), conjugate axis parallel to the yaxis, slopes at asymptotes numerically onesixteenth times the length of the latus rectum, and distance between foci is 2sqrt145.
asked by Ruby 
American History
I really need help please help I'm stuck on this question. Question 25. The 1800s were a period of (Points : 1) 1.nationalism, industrialization, the election of a pioneer for President, and vast influxes in the economy. 2.patronage, immigration and
asked by Isabella Perez 
algebra
A relay team is going to participate in a 150mile bicycle race. One rider averages 12 miles per hour. The second averages 16 miles per hour. Write a function modeling their trip, where x = the hours ridden by the first bicyclist and y = the hours ridden
asked by garry 
math
The ratio of girls to boys in Liza’s classroom is 5 to 4. How many girls are in her classroom if there is a total of 27 students?
asked by ben 
English
Find the best answer to the question. Which word does not suggest a second appearance? disgorge efface recapitulation regurgitate My answer:efface
asked by Nikki 
Math
Which of the following types of information is suited for display on a doubleline graph? A. annual changes in Melody’s height and weight from 5 to 10 years old B. number of Democrats and Republicans in the Senate during the past decade C. monthly sales
asked by Anonymous 
geometry
what is the area of the base of a rectangular pyramid with a length of 2.75 inches and a width of 2.75 inches? Also what is the area of a face (lateral) with a length of 2.75 inches and a width of 2.75 inches?
asked by denise 
English
14.) Which excerpt from James Joyce's "Araby" describes a setting? A.) "We waited to see whether she would remain or go in..." B.) "Her image accompanied me even in places the most hostile to romance" C.) "The other houses on the street...gazed at one
asked by Cassie 
History
What caused the French to pull out of Vietnam?
asked by Sam 
Math
Which survey question is biased? A. “Should the president of the United States serve a sixyear term?” B. “Which meal—breakfast, lunch, or dinner—is your favorite meal of the day?” C. “During which month do you prefer to go on vacation?” D.
asked by Anonymous 
geometry
what is the formula for the volume of a cube? and: what is the formula for the surface area of a cube?
asked by shannon 
math
what is the surface area of a cube with sides measuring 2 inches?
asked by charles 
Science
2. How did Darwin and Lamarck differ in their thinking about change in species? I think its a
asked by hibye2015 
math
what is the Lateral area of the face of a rectangular pyramid with measurements 2.5 in by 2.75 inches by 2.75 inches.
asked by Olivia 
biology o science
Very few fossils of jellyfish or their close relatives have been found. This makes it hard to trace the evolutionary history of jellyfish using the fossil record. What explains this? (1 point) Jellyfish fossils are buried deep under the ocean floor, not in
asked by claudia 2015 
science or biology
Similarities in the early development of chickens and opossums suggest that these organisms share a __________. I think is common ancestor
asked by claudia 2015 
science
Suppose some natural disaster occurs and a species of finch is forced to relocate from its original island where it dined on cactus flowers to an adjacent island with many fewer cacti but an overabundance of orchids. What would be the immediate
asked by David101 
Math
Please help! I am confused about this question and can not seem to get the answer. Thanks! 1) You choose a marble at random from a bag containing eight brown marbles, seven yellow marbles, and one purple marble. You replace the marble and then choose
asked by Tia 
Math
A line passes through the points (4,1) and (2,3. what is the slope of this line? A. 1/2 B. 2 C. 1/2 d. 2
asked by Angelina 
prealgebra
find the slope of a road that rises 5 feet vertically for every 45foot horizontal increase.
asked by ryan 
Chemistry
Can anyone help me with these three questions? Predict the sign of delta S° and then calculate delta S° for each of the following reactions a. 2H2S(g) + SO2(g) > 3S(rhombic)(s) + 2H2O(g) b. 2SO3(g) > 2SO2(g) +O2(g) c. Fe2O3(s) + 3H2(g) > 2Fe(s) +
asked by Anonymous 
Math
Hi! I know I am asking a lot since this is a huge question, but I was wondering if anyone could help or walk me through it. I totally understand if you do not want to help. But I am really confused and any help at all would be amazing. Thank you! You are
asked by Sasha 
Social Studies
Extended Response 1. How are the cultures in South America like the cultures in Mexico? How are they different? 2. How might the cultures of Latin America be different if the Spanish and Portuguese had never arrived? What kind of culture do you think would
asked by Jay 
math
A branch grows from the trunk of a tree. It makes two supplementary angles with the trunk. What must be the variable of x if you have 76+8x=
asked by oswaldo 
education technology
which of the following is an example of a print medium
asked by ciara 
LA
In the play the importance of being earnest by Oscar Wilde. How are the characters jack and lager in developed through the use of dialogue? How are these characters similar? How are they different?
asked by Bob 
Math
In a bag M&M's, the probability of choosing a yellow m&m is 1/5. In a bag of skittles, the probability of choosing red is 1/4. What is the probability of choosing a yellow m&m and a red skittle?? Number of events:________________
asked by Tisy 
math
how many edges , vertices and faces does a cylinder have? some say 0 edges,0 vertices, and 2 faces but others say 3 faces, 2 edges and 0 vertices. Which is it? thank you.
asked by judy 
Math
Use the function rule f(x)=x*1^x. Find the output f(2). A.4 B.3 C.2 D.2
asked by basketball&batman 
History
What was the result of the overthrow of Diem in Vietnam?
asked by Sam 
Math
What are the vertices and covertices of y^2/25  (x + 6)^2/144 = 1
asked by Anonymous 
math
At Frugal Foods a loaf of bread cost about $1 in 1980. In 2013, the loaf of bread cost $2.50. 1.A ratio is a comparison of two amounts by division. What is the ratio of the cost of a loaf of bread in 2013 to the cost in 1980? 2.50/1 2. Assuming the price
asked by Frank 
Science
The diagrams show two views of the same river flowing from a lake to an ocean bay. Which diagram below best represents the profile of the river bottom between points C and B?
asked by Daniela 
math
a sprinkler is placed in the corner of a rectangular yard,if the sprinkler has a of reach 26 feet and the yard is 30 feet long and 40 feet wide how many square feet of the lawn will not be watered by the sprinkler? 30ft26ft = 4ft, 40ft26ft=14 14ft * 4ft
asked by Tricia 
Math
Q. Mrs.Ramirez's class was getting ready to plant tomatoes. They we're wondering if each package of tomato seeds contained the same number of seeds. They counted the seeds in four packages and found that there was a average of 73 seeds in the package. The
asked by Michelle 
Math
A whale weighs 120 to a. Baby weighs 1/40 of the weight of adult whale. How pounds does baby whale weigh.
asked by Bell 
grade (5) math
the cost of dinner for a family of four was $128. They left the waiter a total of $151.04, including the tip. What percent of the bill was the tip? Pls help me!
asked by ary 
Math
On a grid draw and label and label an aquarium shaped like a rectangle prism with the volume of 8000 cubic in.
asked by Jaxon 
Math
If g(x)=5^x, then g′(2) is _________
asked by Pax 
Calculus
The slope of the line normal to the curve e^x − x^3 + y^2 =10 at the point (0, 3) is ____
asked by Pax 
maths
Bob, jean, and Paul have a total of 5590 stickers. Paul has twice as many stickers as Bob. Bob has 3 times as many stickers as Jean. How many stickers does each one have
asked by TT 
Chemistry
The thiosulfate ion (S2O32) is oxidized by iodine as follows: 2S2O32(aq) + I2(aq) → S4O62(aq) + 2I(aq) In a certain experiment, 4.41×103 mol/L of S2O32 is consumed in the first 11.0 seconds of the reaction. Calculate the rate of production of
asked by Jack 
Chemistry
Consider the combustion of ethane: 2C2H6(g)+7O2(g)>4CO2(g)+6H2O(g) If the ethane is burning at the rate of 0.7 mol/L × s, at what rates are and being produced?
asked by Jack 
Math
Tickets for children cost $3.00, adult tickets cost $5.00. I am responsible for selling 6 tickets. How would I figure out all the possible dollar amounts that my ticket sales could total? SOOOO confused, please, any help would be sincerely appreciated.
asked by Kyle 
maths
Wendy and Carol each bought the same laptop at the same price. In addition, Wendy bought a flash drive and Carlo bought an infrared mouse. The flash drive cost $60. Find the cost of the infrared mouse if Carol spent $1810 and Wendy spent $1840.
asked by TT 
English
bank : where you can walk next to a river =================== This is the definistion of the word 'bank.' What is the meaning and the part of speech of 'where'?
asked by rfvv 
Science, please check my answer Ms Sue!
How does a hurricane form? a.)It forms over a warm ocean water as a lowpressure area*** b.) it forms over a warm ocean as a highpressure area. c.) it forms over cool ocean water as a lowpressure area d.) it forms over a cool ocean water as a
asked by Carla 
math
2.If a sledgehammer that weighs 18 newtons on Earth will weigh about 4 newtons on the planet Namar, then your weight on Namar would be about ___ times your weight on Earth. A. 0.25 B. 4 C. 0.5 D. Not enough information
asked by Julia 
Physics
A tennis player makes a return at a speed of 18m/s and at a height of 3m to land in the court at a horizontal distance of 12m from her. What are the possible angles of projection of the wall
asked by Glory 
chemistry
The boiling point of diethyl ether, CH3CH2OCH2CH3, is 34.500 °C at 1 atmosphere. Kb(diethyl ether) = 2.02 °C/m In a laboratory experiment, students synthesized a new compound and found that when 13.85 grams of the compound were dissolved in 283.2 grams
asked by JC 
science
If you could double check my answer that would be awesome :) which of the following is not part of the theory of evolution? Organisms tend to produce more offspring than can survive to reproductive age ** Organisms can acquire changes during their lifetime
asked by anonymous 
math
Simplify each expression. 4^4\4^6 A. 16 B. 16 C. 1\16 D. 1\6 2. 5^0 A. 0 B. 5 C. 1 D. 5 1. C. 2. A
asked by anon 
math
Replace the___with, or = to make a true statement. 7^4\7^2_______49 A. < B. > C. = D. None if the above A?
asked by anon 
chemistry
saline solution mass is 53.0 at 4 degrees equal volume of water, same temp had a mass 51.5g what is the density of the saline solution?
asked by kaela 
math
Multiply the following polynomials. 1. 2r(8r+5) A. 16r^2+5 B. 16r^2+10 C. 16r^210r D. 16r^210 2. 2a(a^2+4a) A. 2a^2+6a^2 B. 2a^3+8a^2 C. 2a+6a D. 2a^3+6a^2 3. (3y)(3y2) A. 9y^26 B. 9y^2+5y C. 9y^2+1 D. 9y^26y 1.B 2.A 3.B
asked by anon 
algebra
A private plane traveled from Seattle to the rugged wilderness at a average speed of 176 mph. on the return trip the average speed was 308 mph. if the total traveling time was 5 hours. How far is Seattle to the wilderness? please help
asked by Ann 
Science
How did Darwin and Lamarck differ in their thinking about change in species? Darwin thought that organisms could induce their own changes, while Lamarck thought that change could only be induced by an organism’s environment. Darwin thought that change
asked by Elizabeth 
math
A brownie cake recipe requires 2 1/2 cup of sugar. The amount of flour needed is 1/2 cup more than twice the amount of sugar. How much flour is required?
asked by ed 
health
suicide among older person isn't a concern.is this statement valid?why or why not?
asked by kiki 
Science
Name two types of evidence used to support the theory of evolution. Explain how scientists use each type of evidence to provide support for evolution. Give one example of each.
asked by baby2015