Questions Asked on
October 2, 2017

chemistry
If a container is heated with CaCO3, the compound decomposes into CaO and CO2. If the container and CaCO3 originally weigh 30.08g and loss 4.40g during the heat, what is the mass of the empty container?
asked by homework 
math
Product no.is 0.0925 and one is0.37 find the other no.
asked by Anonymous 
English
Which of the following sentences demonstrates the correct use of capitalizing direction words? A. Are you heading East? B. Poor Alex thought he was driving West. C. The Northeast has been hit with an unusually cold winter. D. I live just South of Scranton.
asked by LEE 
Maths
The capacity of a cylindrical tank is 32l .It is 4/5 full of water .A quarter of this volume is poured into a pail .How much water is left in the cylindrical tank
asked by Anitha 
math
The sum of two numbers is 31.2/3 of one of the numbers is equal to 5/8 of the other.find the two numbers
asked by sofia 
science
A bullet m9ving at a speed of 10m/s strikes a wooden plank . The bullet penetrates the plank 2cm deep and remains embedded in it . The acceleration of the bullet is?
asked by samiksha 
algebra
solve the following system of equations, please show work 3x2y+z=12 x+3y+z=4 2x+2y4z=6
asked by heidi 
Physics
what is the minimum thickness of magnetization fluoride coating on a lens which will make the lens non reflecting for light of wavelength 5000 Angstrom. Take the refractive index of magnesium fluoride as 1.83
asked by Naf 
Texas State History
Plzzz Help!!!!! If you answer plz be right!!!! The Caddos were an American Indian group in Texas that practiced agriculture and built permanent houses. What can be inferred about the group? (1point) A it created large populations . Bit formed a small and
asked by tay 
Math
Find the median of the data set. 3,35,23,37,45,27,48 How do I find the answer? Help me plz
asked by GYMNAST 
MATH
The height of an object varies directly with the length of its shadow. A person who is 6 feet tall casts a 15foot shadow. How long is the shadow of a 20foot tree? answer
asked by ODETTH 
math
For the following geometric sequence find the recursive formula and the 5th term in the sequence. In your final answer, include all of your work. {4, 12, 36, ...}
asked by S.A 
history
"Having undertaken, for the Glory of God, and advancements of the Christian faith and honor of our King and Country, a voyage to plant the first colony in the Northern parts of Virginia, do by these presents, solemnly and mutually, in the presence of God,
asked by maggie 
Spanish
I've looked everywhere and couldn't find the correct information about this, so please help. Thank you! 23. Give two reasons why the work of Maria Nsue Angue is culturally important.
asked by bluah. PLEASE HELP ME! 
Physical
A soild cube of aluminum (density2.70g/cm^3) has a volume of 0.200cm^3 . It is known that 27.0g of aluminum contains 6.02x10^23 atoms . How many aluminum atoms are contained in the cube ?
asked by Rawan 
Science check my answers please
1. Convert 4.0 kilometers (km) to meters (m). (1 point) 0.04 m 40 m 400 m 4,000 m (my answer) 2. For his science project, Austin wants to determine if the pH of standing rainwater changes over time. He collects a jar of rainwater and places it indoors in a
asked by OCA student 
Physics
In fusion reaction two light nuclie fuse together to form one heavy nucleus.. We know like charges repel each other then how it's possible for the nuclie to fuse 2gether. 2. How is energy released during fusion reaction.a
asked by Ubaid ullah 
LA
Which best describes the climax of the story? 1 Chris and Taylor have been neighbors for years. During the summer, they enjoy biking on the trails in town. Chris always has to remind Taylor to wear his helmet or else Taylor forgets. Every time that
asked by Kj 
History
1. La salle had conflicts with which of the following groups of American Indians? Hasinai Caddo*** Apache Karankawa Please help quickly
asked by Annonymous 
Math
The sum of two numbers is =21.five times the first number is added to two times the second number is =66 what the number
asked by Blessing 
Why so much school
Can anyone help me?? Suppose Ann’s bread recipe calls for 900 g of flour, 0.68 kg of sugar, 145 mg of salt, and 185 mg of baking powder. Her scale measures grams only. How can she convert each of the ingredients to equivalent measures in grams? Dont give
asked by Pedro 
maths
A ladder 9cm long leans against a wall if the foot of the ladder is 4.5cm away the wall how far up the wall does the ladder reach.
asked by frimpong 
Calculus
I have three questions I need help solving 1) A ball's position, in meters, as it travels every second is represented by the position function s(t) = 4.9t2 + 550. What is the velocity of the ball after 3 seconds? 2) The cost in dollars of producing x units
asked by Dante 
math
Claire has a parttime job walking dogs Monday through Friday. Business has really increased. She is walking 3 more dogs per day than she did last week if she walked a total of 35 dogs this week, how many dogs did she walk per day last week?
asked by Marvel 
AP Calculus
 Which of the following is false for f(x) = (5x^35x^210x)/(2x^52x) a) The xaxis is an asymptote of f(x) b) x = 1 is not an asymptote of f(x). c) x = 1 is an asymptote of f(x). d) The yaxis is an asymptote of f(x). Thanks
asked by Will 
math
32x=5
asked by help 
physics
An acrobat hangs from a trapeze with the tension in both ropes is 315 Newtons.What is the mass of the acrobat?
asked by Anthony 
Math
What is 5/9 written as a decimal? 0.45 0.4 repeating 0.5 0.5 repeating What is 0.26 written as a fraction in simplest form? 26 over 100 13 over 50 26 over 10 13 over 25 In a fraction with a denominator of 15,which value could the numerator be to produce a
asked by Help ms.sue 
Science
Explain what the difference is between a scientific law and a scientific theory. My answer: A scientific theory predicts why something might happen and when more information goes into the theory it can better predict. But a law is something that no matter
asked by Cough 
Biology
Why can viruses of the family of the Poxviridae be genetically modified more easily than viruses of most other viral families? A. Because their genome is smaller. B. Because their genome is made of DNA. C. Because their genome mutates more slowly. D.
asked by Danny 
6th grade math
Zachary saved x nickels and y dimes last month. Lily saved x nickels and 2y dimes. Lily saved $2 more than Zachary and the total number of her dimes is 4 times the total number of her nickels. a) How many coins does Zach have? b) How much did Lily save? c)
asked by Julia 
math
19. Track The sketch at the right shows the distance three runners travel during a race. Describe what occurs at times A, B, C, and D. In what order do the runners finish?
asked by Anonymous 
History
Explain the impacts that European contact and settlement had on the Native Americans
asked by ????? 
S.S.
Who are the new United States governments of 2017?
asked by Kevin 
Science
how are carbon atoms incorporated into organic molecules by plants?
asked by Emma 
history
What best describes tactics used by the Arab Empire when it captured a region? A) The conquerors used Visigoth mercenaries to maintain order. B) The conquerors forced the populace to convert Islam. C) The conquerors used the region's existing leaders as
asked by Kira 
Physics
1) Seagulls are often observed dropping clams and other shellfish from a height to the rocks below, as a mean of opening the shells. If a seagull drops a shell from rest at a height of 14 m, how fast is the shell moving when it hits the rocks?
asked by Jackie 
Physics
A watermelon cannon fires a watermelon vertically up into the air at a velocity of +9.5m/s, starting from an initial position of 1.2m above the ground. When the watermelon reaches the peak of its flight, what is the velocity, the acceleration, the elapsed
asked by Jackie 
Math
A Japanese beetle has a length between 0.3and0.5 inch .Find two lengths that are within the given span .Write them as fractions in simplest form
asked by Cyara 
Maths
A baker uses 3/5 of a bag of flour to make 6 muffins. How many bags of flour will he need to make 48 muffins?
asked by Rachel 
Math
Pat has 9 cards , Frank had 2 more cards than Steve , Steve has 3 cards . How many card does Pat have than Frank .? Cards Frank has _ () _ () _ More cards Pat has Frank _()_()_ Pat _ more cards than Frank.
asked by Yanira 
Math
Maria ate 1/3 of a pie. Her sister ate 1/5 of what was left. What fraction of the whole pie did her sister eat?
asked by John 
history
Which options accurately describe the impact of the Roman Empire on later civilizations? (Select all that apply.) the roman empire invented gunpowder used by western nations in future wars the roman empire bureaucratic government was adopted by European
asked by Kira 
World History
Several factors contributed to the fall of the Roman Empire. Rome was experiencing an internal financial crisis due to overspending on wars (1). Rome also suffered losses to invading tribes including the Persian Empire, which successfully sacked Rome in AD
asked by malia 
Calculus
1) A particle is moving along the xaxis so that its position at t ≥ 0 is given by s(t) = (t)In(2t). Find the acceleration of the particle when the velocity is first zero. 2) The driver of a car traveling at 50 ft/sec suddenly applies the brakes. The
asked by James 
Calculus
1) If y = 2x3  4x and dx, dt equals 4 , find dy/ dt when x = 1. 2) The area A = πr^2 of a circular water ripple changes with the radius. At what rate does the area change with respect to the radius when r = 4ft? 3) A rectangular box has a square base
asked by Deondre 
World History
From AD 527 to 565, Justinian I was the first ruler of the Byzantine Empire (1). During his reign, the empire encompassed most of the land around the Mediterranean Sea (2). Under his rule, magnificent monuments were built including the Hagia Sophia church,
asked by malia 
Linear Algebra
Given the following vector X, find a nonzero square matrix A such that AX=0: X=[2 5 3]^T Im not sure how i would find the sqare matrix a?
asked by Angel 
Biochem
If you had a wheat germ RNA yield of 0.213 g, how much DEPC water would you need to add to make a 20 mg/mL solution of RNA/polysaccharide mixture?
asked by shiva 
Math
What is an estimate of the solution of the equation 6n+3=2? Use a table. ok so I know the answer is 1/6 but its asking to use a table? does anyone know what kind of table you use for this and how I'd use it? thank you soo much
asked by Memes 
chemistry
What is the oxidizing agent in the following reaction? Sn(s) + 2HCl(aq) → SnCl2(aq) + H2(aq) HCl H2 Sn SnCl2 . Question 2 The following is an oxidationreduction reaction: H2CO3(aq) → CO2(g) + H2O(l) True False
asked by larlee 
Math
When you add the same number to both sides of an inequality, is the inequality still true? Explain how you know that your conjecture holds for subtracting the same number.
asked by Anonymous 
Physics
A rail gun uses electromagnetic energy to accelerate objects quickly over a short distance. In an experiment, a 2.00 kg projectile remains on the rails of the gun for only 3.500e2 s, but in that time it goes from rest to a velocity of 4.00×103 m/s. What
asked by Chris 
Algebra
A driver drove at a speed of 42 mph for m hours how far did the driver go
asked by Renee 
buissness math
Onesixth of all sales at a local Subway are for cash. If cash sales for the week were $690, what were Subway's total sales?
asked by Anonymous 
Chemistry
For potential and kinetic energy when it comes to phase change, do the temperatures remain constant in one of them? I forgot which one it was. Can you help?
asked by Sarah 
health
how to achieve a nutrition?
asked by karla 
Grammar
Select the word or phrase in the sentence that is not used correctly. 1) After the policeman had ran for several miles, he finally caught up with the man who had stolen the purse. a) Had ran b) Several miles c) Who d) Up with 2) The man’s heart attach
asked by pal 
Physics question
A box of mass 25kg is sitting on a horizontal plane and has a normal force pointing down of 31N, and the coeff of kinetic and static friction between the box and floor are .22 and .38, respectively. What is the min horizontal force F needed to make the box
asked by aria 
Science
If don't mind could you check my answers for environmental science 1.The interdisciplinary study of humanity’s relationship with other organisms and the nonliving physical environment is termed: a) ecology b) sociology c) political science d) risk
asked by Aria 
MATH
4 ADDED TO 5 TIMES A NUMBER EQALS 2 SUBTRACTED FROM 7 TIMES THE NUMBER.FIND THE NUMBER
asked by Abhishek 
Science
Using a complete sentence, state what would mostly likely to happen to the production of oxygen by duckweed plants if the intensity and duration of exposure to light were increased
asked by Anonymous 
World History
Several factors contributed to the fall of the Roman Empire. Rome was experiencing an internal financial crisis due to overspending on wars (1). Rome also suffered losses to invading tribes including the Persian Empire, which successfully sacked Rome in AD
asked by malia 
ELL
Mr.Pearson hints to Squeaky that she should let Gretchen win the race.Prediction,Actual outcome (If known)
asked by Umida 
algebra
3+1/2(8a+12b16)5
asked by The Great Saiyaman 
New Mexico history
Choose at least two contributions of early cultures in the Eastern or Western Hemispheres and explain how they might have affected the development of New Mexico.
asked by Annie:~) 
Science
If don't mind could you check my answers for environmental science 1.The interdisciplinary study of humanityâ€™s relationship with other organisms and the nonliving physical environment is termed: a) ecology b) sociology c) political science d) risk
asked by Anonymous 
Math
Tanαsecα+1/tanα+secα1. Please. Give. Me. Ans...
asked by Sorabh