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Questions Asked on March 5, 2018

A SAMPLE OF ANTIMONY, Ar=121.8, WAS ANALYSED AND WAS FOUND TO CONSIST OF 60% OF 121Sb AND ONE OTHER ISOTOPE. DETERMINE THE MASS
1. 1 answer
2. asked by 0oooooooo0
3. 837 views
A first-order reaction has a rate constant of 0.547 min - 1. How long will it take a reactant concentration 0.14 M to decrease
1. 3 answers
2. asked by Andrea
3. 1,333 views
Starting from rest, a 2.3x10-4 kg flea springs straight upward. While the flea is pushing off from the ground, the ground exerts
1. 3 answers
2. asked by Sidiqa
3. 2,700 views
Two ships leave the same port at the same time. One ship sails on a course of 110 degree at 32 mi/h. The other sails on a course
1. 2 answers
2. asked by Jane
3. 5,770 views
A system in which a series of workers and machines work to add individual parts to a product is known as a(n)_______and it
1. 3 answers
2. asked by Anonymous
3. 590 views
How would I do these?6. The speed of sound is approximately 1.2 × 10³ km/h. How long does it take for sound to travel 7.2 ×
1. 1 answer
2. asked by D
3. 792 views
The electric field that is .25 m from a small sphere is 250 N/C towards the sphere. What's the charge of the sphere? I am
1. 0 answers
2. asked by Confuzzled
3. 535 views
The House of Representatives shall be composed of Members chosen every second Year by the People of the several States, and the
1. 3 answers
2. asked by girly girl
3. 1,075 views
Palo Alto College is planning to construct a rectangular parking lot on land bordered on one side by a highway. The plan is to
1. 1 answer
2. asked by James
3. 991 views
Lisa descended 120 feet into a cave. She then climbed up 56 feet. If her starting point was 38 feet below sea level at the mouth
1. 3 answers
2. asked by bug
3. 1,203 views
For the human body to function correctly, the right amount of sugar must be present in the blood. Several hormones are produced
1. 4 answers
2. asked by Rylee
3. 777 views
In the triangle OAB, OA = a and OB= b. Show that (a-b) times (a-b) = (a times a) + (b times b) - (2 times a times b). Hence
1. 1 answer
2. asked by Peirs
3. 585 views
1) Find the surface area of a sphere with a radius of 8 cm.A 267.9 cm B 803.8 cm *** C 2143.6 cm D 2010. cm 2) Find the surface
1. 31 answers
2. asked by Edward Elric
3. 10,330 views
___identify the sets to which the number 0.41567 belongs. A. rational number B. irrational number C. integer, rational number D.
1. 2 answers
2. asked by a n n a
3. 1,863 views
For photosynthetic organisms to become more common than those that get energy from eating organic molecules, what environmental
1. 1 answer
2. asked by Katie T
3. 1,538 views
1. Oh, my!2. Oh my! 3. Oh, my God! 4. Oh, my gosh! --------------------- Is #1 or #2 from #3? Do we have to put a comma after
1. 1 answer
2. asked by rfvv
3. 460 views
1. After three days he was arrested and imprisoned.2. Three days later he was arrested and imprisoned. 3. After three days, he
1. 1 answer
2. asked by rfvv
3. 510 views
When a normal female (XX, +/tra) Drosophila is crossed with a normal male (XY, tra/tra), what would be the percentage of males ?
1. 0 answers
2. asked by Mini
3. 431 views
If there is crossing over between two gene loci A and C occurs in 20% of the tetrads and between C and B in 10% of an individual
1. 0 answers
2. asked by Mini
3. 559 views
Lottery: I buy one of 250 raffle tickets for $5. The sponsors then randomly select 1 grand prize worth $250, 2 second prizes
1. 0 answers
2. asked by Jim
3. 1,099 views
Read the scenario.Loretta has a sample that contains a mixture of different DNA molecules. She would like to separate them by
1. 2 answers
2. asked by Rylee
3. 1,367 views
Heterozygous tall and red flowered pea plants were selfed and total 2000 seeds are collected. What is the total number of seeds
1. 1 answer
2. asked by Mini
3. 809 views
Sammy notices that the pea plants growing in his garden have purple flowers. What exactly has Sammy observed about the plants?A-
1. 5 answers
2. asked by Rylee
3. 910 views
What did the first civilizations in Asia and Africa have in common?A. They had organized governments. B. They lacked social
1. 1 answer
2. asked by barsandmelody
3. 824 views
Which can be accomplished by DNA barcoding?A)determining the sequence of DNA B)identifying species C)bringing extinct species
1. 3 answers
2. asked by Rylee
3. 700 views
Barry wants to make a drawing that is 1/4 the size of the original.if a tree in the original. Drawing is 14 inches tall and 5
1. 1 answer
2. asked by Azilah
3. 612 views
An airplane is headed on a bearing of 140° with an air speed of 500 miles per hour. The course has a bearing of 128°. The
1. 3 answers
2. asked by John
3. 2,139 views
if someone travels 360 miles on 20 gallons of gas home many miles can they go on 1 gallon of gas
1. 1 answer
2. asked by gina
3. 512 views
An insurance salesperson earns a commission of 3% of the first 5000 dollars on insurance that he sells each week and 4 percent
1. 1 answer
2. asked by Anonymous
3. 686 views
Find the area of each circle shown below.The image shows a) a circle with the diameter of 20 cm and b) a circle with the radius
1. 4 answers
2. asked by Cami
3. 1,239 views
multiply and simplify if possible.sqrt(5x) (sqrt(x)-5 sqrt(5)
1. 1 answer
2. asked by lexi
3. 1,228 views
which of the following is a true statement?a. when comparing two integers, the integer with the greater absolute value is always
1. 29 answers
2. asked by Mackenzie
3. 8,681 views
Every year a lake becomes more polluted, and 5% fewer organisms can live in it. If in 2010 there are one million organisms,
1. 1 answer
2. asked by George Carl
3. 1,398 views
Mayan gods?
1. 1 answer
2. asked by Beenbanned10times
3. 535 views
Determine the CFU/ml if 1 ml of the 10-5 dilution is plated and 372 colonies are present following incubation.Thank you!
1. 1 answer
2. asked by lauren
3. 762 views
Which option correctly defines a scientific theory?an explanation for observable facts that is supported by experimental
1. 6 answers
2. asked by Bri
3. 898 views
A lottery ticket contains 5 numbers chosen from the numbers 1 to 40. The winning ticket is the one that matches all the 5
1. 1 answer
2. asked by HELP123
3. 2,453 views
Volunteers for a political campaign gave out 13/29 of their fliers in one neighborhood. They gave out the remaining 768 fliers
1. 1 answer
2. asked by Lakisha Mantel
3. 419 views
The temperature in the room is rising because the explosion is releasing _____ energy into the air, increasing the speed of the
1. 1 answer
2. asked by Joshua
3. 780 views
Is the function below exponential?G(t)=(5⋅t)^2 If so, write the function in the form G(t)=ab^t and enter the values you find
1. 1 answer
2. asked by George Carl
3. 1,863 views
Jim walked one quarter of his journey,travelled two thirds of it by bus and cycled the rest.calculate the fraction of the
1. 1 answer
2. asked by Vera
3. 663 views
Is the function below exponential?q(r)=−8/3^r If so, write the function in the form q(r)=ab^r and enter the values you find
1. 1 answer
2. asked by George Carl
3. 737 views
The difference between two numbers is 4. The sum of the smaller number and three times the larger number is 36. What are the two
1. 1 answer
2. asked by katie
3. 795 views
All the following statements concerning the theory of evolution by natural selection are true EXCEPT:The bodies of organisms in
1. 2 answers
2. asked by Anna
3. 2,933 views
Find the initial value a, growth/decay factor b, and growth/decay rate r for the following exponential function:Q(t)=0.0036(2.58
1. 1 answer
2. asked by George Carl
3. 1,986 views
Which of the following rate laws is possible for the following two-step reaction?1) NO(g) + NO(g) N2O2(g); FAST 2) N2O2(g) +
1. 5 answers
2. asked by Sophie
3. 2,177 views
The square root of 76 is between what two numbers?
1. 1 answer
2. asked by anon
3. 550 views
A surveyor sights two signs and the angle between the two lines of sight measures 55. If the first and the second signs are 70 m
1. 5 answers
2. asked by Jane
3. 6,556 views
How did the expansion of the railroads during the post-Civil War period helpto facilitate the economic growth of the nation?
1. 2 answers
2. asked by Reily
3. 477 views
Keisha and Kelly have an astronomy club devoted to observing the moon. If the moon is visible 28 out of 29 days and the girls
1. 2 answers
2. asked by PT
3. 444 views
a woman is four times older than her daughter five years ago the product of their age was 175 find their present age
1. 2 answers
2. asked by kumar
3. 666 views
There are 6 methods of travel (walk,run,unicycle,bicycle,scooter,car).For three days, Max decides that he wants to randomly
1. 3 answers
2. asked by PT
3. 417 views
The reproduction function for a sardine isf(p) = −0.0004p^2+3p, where p and f(p) are in hundred metric tons. Find the
1. 1 answer
2. asked by aj
3. 759 views
Marine ecologists estimate the reproduction curve for swordfish in a fishing ground to be f(p) = −0.01p^2 + 8p, where p and
1. 1 answer
2. asked by aj
3. 845 views
Chlorine dioxide decomposes to chlorine and oxygen according to the following mechanism:ClO 2 → ClO + O (fast) ClO 2 + O →
1. 1 answer
2. asked by Michael
3. 836 views
In the expansion of(1 + x + x^2 + ...+ x^27) (1 + x + x^2 + ... + x^14) ^2 What is the coefficient of x^28? A) 195 B)196 C)224
1. 6 answers
2. asked by SimPug
3. 839 views
A page of 150 square inches is to have margins of 1 inch on either side and 1 1/2 inches at the top and bottom, as in the
1. 2 answers
2. asked by aj
3. 3,736 views
The current price for a good is $20, and 100 units are demanded at that price. The price elasticity of demand for the good
1. 0 answers
2. asked by hasiba
3. 1,265 views
What caused the Progressive Movement of the early 20th Century and what weresome of its key goals? Was this movement successful?
1. 1 answer
2. asked by Reily
3. 670 views
why mining and ranching were so important to the settlement of theWest during the post-Civil War period.
1. 1 answer
2. asked by Reily
3. 437 views
1. I take 11 subjects at school.2. I learn 11 subjects at school. [Can we use 'learn' instead of 'take'? Are they the same? What
1. 1 answer
2. asked by rfvv
3. 491 views
Why were immigrants generally distrusted by the American middle class during the late 19th Century?
1. 1 answer
2. asked by Reily
3. 493 views
1. Which of these statements is written using passive voice?A. I went to the store because it was having a sale. B. It was said
1. 5 answers
2. asked by T
3. 4,122 views
Subject names at school are as follows.math,science, social studies, computer science,etc.
1. 2 answers
2. asked by rfvv
3. 938 views
#3) A person with trisomy 21 has an extra copy of chromosome 21. What happened during meiosis that caused the person to get
1. 2 answers
2. asked by Rylee
3. 767 views
two years ago the sum of a mothers age and her daughters was 56 . now, the mothers age is twice the daughters age.Find the
1. 2 answers
2. asked by Jaylene
3. 655 views
When doing an ICE Chart in Chemistry, when do you know whether the C is a negative or positive?I was told if the problem gives
1. 1 answer
2. asked by TP
3. 638 views
Question 6:From the following data, calculate ΔH° for the reaction O3(g) +NO(g)----->O2(g)+NO2 (g) Compound ΔH°f (kJ/mol) O3
1. 0 answers
2. asked by Onye
3. 949 views
From the following data, calculate ΔH° for the reactionO3(g) +NO(g)----->O2(g)+NO2 (g) Compound ΔH°f (kJ/mol) O3 142.7 NO
1. 1 answer
2. asked by Onye
3. 1,461 views
A chemist performs an acid–base titration using 0.176 M aqueous NaOH as the titrant with 26.15 mL of 0.102 M H2SO4. The
1. 1 answer
2. asked by Onye
3. 1,185 views
Calculate how many grams of sodium azide (NaN3) are needed to inflate a 25.0 × 25.0 × 20.0 cm bag to a pressure of 1.25 atm at
1. 1 answer
2. asked by Onye
3. 1,364 views
Attention, please show the calculations in details, comments have to be provided.You have information source with M symbols. 1.
1. 0 answers
2. asked by Alper
3. 524 views
Calculate the POH of a solution when H+ and PH is given
1. 0 answers
2. asked by Beauty
3. 509 views
1. Part A: What can you infer from these lines of dialogue in The Diary Of Anne Frank, Act I?MRS. FRANK: But I'd like to stay
1. 60 answers
2. asked by Cy
3. 38,848 views
A parking lot space is in the shape of a rectangle. If the space has a length of 23 feet and a width of 12 feet, what is the
1. 6 answers
2. asked by _b_l_a_n_k_
3. 1,547 views
A teacher asks each student in the class to randomly choose a number between 1 to 80 and write it down. Devon and Michiko write
1. 1 answer
2. asked by Nikol
3. 1,385 views
What are some common or unique formulas that we use in our everyday life? Please add information as to how and why we use the
1. 1 answer
2. asked by Clawdeen
3. 601 views
Critique two scientific models that explain the origin of life.Thanks!
1. 1 answer
2. asked by Anonymous
3. 975 views
5h-9=-16+6h
1. 2 answers
2. asked by fruit loops
3. 348 views
THe explict rule for a sequence is given.an=4n-1 What is the recursive for the sequence? I got a1=3 ; an=an-1+4
1. 1 answer
2. asked by John Smith
3. 2,768 views
What is the recursive rule for the sequence?-7.4, -21.2, -35, -48.8, -62.5 I got an=an+1 -13.8 where a1=-7.4
1. 2 answers
2. asked by John Smith
3. 642 views
What was the big Bang theory? How did scientist learn about it? Why is it so important today?
1. 1 answer
2. asked by Jada
3. 531 views
What was one achivemanet of President George Washington? How did he help his country? What state did he sybmolize?
1. 1 answer
2. asked by Jada
3. 504 views
A moveable do refers toA. each note receiving a do marking. B. the do marking being used multiple times in a scale. C. the do
1. 34 answers
2. asked by Fernando khalifa
3. 6,796 views
Attention, please show the calculations in details, comments have to be provided.1. Calculate the source rate before and after
1. 1 answer
2. asked by Alper
3. 496 views
1._____ wives have always played important social roles.a. President's b. Presidents' (B) 2.My cousin is an extremely _____
1. 1 answer
2. asked by ALEX.3
3. 797 views
1.Authorities expect no water shortage this _____ nevertheless, extrawells are being dug. a. summer, b. summer; (B) 2.Among
1. 3 answers
2. asked by cristalL5
3. 523 views
What do all right triangles have in common?
1. 1 answer
2. asked by Lamont
3. 376 views
1. Why's he late again?2. Why is he late again? [Are both okay? Is #1 commonly used?] 3. Why's he been working till late? 4. Why
1. 1 answer
2. asked by rfvv
3. 399 views
For painting a triangular courtyard and a square courtyard, an equal amount of paint is required. if the edges of the triangular
1. 2 answers
2. asked by Deepak
3. 617 views
A gardener has to lay a grass lawn, leaving space for an 80 cm wide concrete path along the inside edge of a square garden with
1. 2 answers
2. asked by Deepak
3. 807 views
A train travels 360 km at uniform speed . if the speed had been 5 km / hr more it would have taken 1 hour less for the same
1. 1 answer
2. asked by kumar
3. 659 views
In order to accumulate enough money for a down payment on a house, a couple deposits $ 688 per month into an account paying 6
1. 0 answers
2. asked by shannon
3. 858 views
1. We have three PE classes a week.2. We have three P.E. classes a week. 3. We have three pe classes a week. 4. We have three
1. 1 answer
2. asked by rfvv
3. 901 views

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