Questions Asked on
May 8, 2018

Math
A coin is tossed three times. Determine which of the following outcomes describe mutually exclusive events. a) A: all tosses are heads , B: all tosses are tails b) A: at least one toss is a tail , B: at least one toss is a head c) For both a) and b) find
asked by Sally 
Algebra
I need help with this portfolio and I was wondering if someone could help me understand it. Task 1 Volume and surface area are often compared by manufacturers in order to maximize how much of something can go inside of a package (volume) while keeping how
asked by Student 
Chemistry
A volatile liquid sample is placed in an Erlenmeyer flask that has been sealed except for a tiny hole that allows vapor to escape. Upon heating, the liquid is converted to vapor that fills the flask. Cooling the flask allows the vapor to condense back to
asked by Ceamus Angelina 
MATH
8. You are building a habitat for your pet turtles that has a rectangular pond. The pond is 20 in. wide, 15 in. long, and 3 in. deep. What is the volume of the pond?
asked by PERSON NEED HELP 
Chemistry, Periodic Table
Very brieﬂy explain the main horizontal and vertical features of the Periodic Table in terms of the electronic structure and relevant quantum numbers?  Am I being asked to state for instance in the case of Halogens that as we progress down
asked by Anon 
math
A drawer contains 8 brown socks and 4 blue socks. A sock is taken from the drawer at random, its colour is noted and it is then replaced. This procedure perform twice more. If X is the random variable. “the number of brown socks taken “, a) Construct
asked by I Need Help ASAP 
Biology
How many repeats do you find in the most common D1S80 allele?
asked by Ceamus Angelina 
Biology
If, on your gel, you saw only one band, how would you describe your genotype?
asked by Ceamus Angelina 
Biology
If your mom had alleles containing 18 and 21 repeats and your dad had alleles containing 18 and 24 repeats, what is the change you will be homozygous for the 18 repeat allele?
asked by Ceamus Angelina 
Biology
How big of a band on a gel would you expect to see for the 41repeat allele?
asked by Ceamus Angelina 
Chemistry
If 5 ml of sulphuric acid is diluted to 135 ml of water, what is the volume and concentration of sodium hydroxide to neutralize the solution?
asked by Rachelle 
Probability
Charlie joins a new reading club, from which he receives books to read. Suppose that books arrive as a Poisson process with rate λ=1/2 books per week. For each book, suppose that the time it takes for Charlie to finish reading is exponentially distributed
asked by Anonymous 
Probability
Let X be a random variable, and let ck=E[Xk]. We assume that X is such that ck exists (and is finite) for all k∈{0,1,2,⋯}. Define Yk=Xk. Please express your answers in terms of X,c1,c2,…,ck,… (for c1,c2,... please enter c1,c2,..., for ck please
asked by Anonymous 
Probability
Let Yn=∑i=1n(−1)iXi=−X1+X2−X3+⋯, where the Xi are i.i.d., with E[Xi]=0, and var(Xi)=4. Is 1nYn approximately normal? Choose the most appropriate response: No. Yes, because the {Yi}i=1∞ are i.i.d., so we can directly apply the Central Limit
asked by Anonymous 
English
Choose the word or phrase that best defines the italicized word. "An aged man is but a *paltry* thing,/ A tattered coat upon a stick..." a.inadequate b.invisible c.significant d.unwise
asked by Anon 
math
prove dat Cos(18°) = 1/4√10+2√5
asked by Joel 
physics
A force of 300N is sufficient to keep a 100_kg wooden crate moving at constant velocity across a wooden floor. what is the coefficient of kinetic friction?
asked by caphas 
physics
A driver sees a horse on the road and applies the brakes so hard that they lock and the car skids to stop in 24 m .The road is level ,and the coefficient of kinetic friction between tires and the road is 0.7.How fast was the car going when the brakes were
asked by caphas 
math
–8 • –15 = ? 120 *** Because they're negative would the product have to also be?
asked by a dog 
Maths
Log base2(x+2)+log base4(y+10)=2 Log base4(x+2)+log base2(y+10)=5/2 Solve simultaneously
asked by Rhonick 
Math
Leon has a bag of 4 red balls, 3 green balls and 6 yellow balls. He takes a ball out and replaces it 50 times. Out of those 50 trials he pulls out a green ball 12 times. What is the experimental probability of getting a green ball on his next trial?
asked by Whatever 
English
which line in julius caesar indicates that cassius is cunning?
asked by T 
Ed. Tech. ~Microsoft Excel~
A features that displays only the data in column (s) according to specified criteria A. Formula B. Sorting C. Filtering* D. Pivot
asked by Mr. Skill's101.4 
physics
A truck moving at 100 km /h carries a steel girder that rest on its wooden floor. what is the minimum time in which the truck can come to a stop without the girder moving forward ? The coefficient of static friction between steel and wood is 0.5.
asked by caphas 
science
does the sun have a gravitiational pull which can strip gas planets of their atmospheres? not a question for assignment but more likes one to help answer another.
asked by a dog 
math
Calculate the maturity value for an interestbearing note of $28,500 for 118 days at 8%.
asked by Anonymous 
English
Choose the sentence that correctly uses ellipses to replace the underlined words. 1. The other day, one of the gentlemen from Georgia,( an eloquent man, and a man of learning, so far as I can judge, not being learned myself,) came down on us astonishingly.
asked by marylyn 
Geometry
The following twocolumn proof with missing statements and reasons proves that if a line parallel to one side of a triangle also intersects the other two sides, the line divides the sides proportionally: Statement Reason 1. Line segment DE is parallel to
asked by NEED HELP 
English
Choose the sentence that correctly uses ellipses to replace the underlined words. 1: Artist Rene Magritte's humble beginnings included(nonglamorous jobs such as) designing wallpaper and sketching advertisements. A:Artist Rene Magritte's humble beginnings
asked by marylyn 
Math
A nonstop flight from Albuquerque, NM to Atlanta, GA takes 3 hours, if the plane flies a total of 1,269 miles, what is the plane`s unit rate in miles per hour? (1 point) A: 3,807 mph***** B: 1,266 mph C: 432 mph D: 423 mph Help mee
asked by AngelDabSwag 
Math~integers
which of the following will have a negative result? 8(10) 12  14* 7  (3)
asked by Mr. Skill's101.4 
Math
kriss ate 3/8 of a pizza and kim are 4/8 of the same pizza.did they eat the whole pizza?
asked by Lily 
History
1. Which of the following was the main contributor to finally bringing the United States out of the Great Depression? A. National Recovery Administration B. Wartime spending C. Good Neighbor Policy D. Election of Roosevelt Is the answer C? 2. What
asked by Person 
Math
You make $22.50/hr and work 38 hours each week. You are paid weekly. Taxes are Federal (25%), FICA (7.65%), and State (3%). What is your Gross income on your next paycheck? $550.19 $855.00 $304.81 Flag this Question Question 4 1 pts You make
asked by Anonymous 
physics
Two strings of tree lights, each with a resistance of 200 Ω, are connected together in series. What is their combined resistance?
asked by alaweed 
physics
How much current flows through two resistors with resistances of 10 Ω and 20 Ω that are connected in series and to a 10 V power supply?
asked by alaweed 
Math
1: select all the pairs of ratios form a proportion. (2 points) A: 1/6, 4/20 B: 7/9, 28/36*** C: 14/19, 21/27 D: 30/80, 6/18 2: Which pair of ratios does NOT form a proportion? (1 point) A: 3/5, 24/40 B: 30/10, 15/5**** C: 9/14, 3/4 D: 7/12, 14/24 3: For
asked by AngelDabSwag 
Algebra 2
A package of paper towels contains 3 rolls. Each package of paper towels costs $2.79. A function of f(x) is written to represent the cost of purchasing. What is the practical domain for the function? All whole numbers All positive All whole numbers that
asked by Algebra 2 f(x) 
Math
(8)(4)(7)
asked by Anonymous 
Math
Please help me, I forget how to do these types of problems. 1 6x+7=67 A 12 B10 C13 D6 2 x/4+2=2 A 4 B4 C12 D16
asked by Friends 
History
What kind of food did Maya's eat? And also what's your fav food, Mrs. Sue? Thank you!
asked by Justbeingcool:) 
Math
You make $52,800/year as a salaried employee who is paid semimonthly. Taxes are Federal (15%), FICA (7.65%), and State (3%). You are also having $50/paycheck withheld for health care. What will your realized income be on your next paycheck? $1,585.70
asked by Anonymous 
history
HELP ME ASAP 3. Based on the excerpt, what was Bill Clinton's opinion of the state of affairs in the United States when he was elected president in 1992?
asked by jenny J 
SS
which is an example of a lending investment? A: Stocks B: Bonds C: Money market D: cash
asked by help m1e plz 
Chemistry
A solution is prepared by dissolving 4g of sodium hydroxide who give 500ml of it.calculate the molarity of the solution.
asked by Anonymous 
Lang Arts
One way in which playwrights develop characters is through dialogue. Define dialogue. Then choose Alice or Humpty Dumpty from Alice in Wonderland. Analyze how the character is developed through dialogue. Describe the character and explain at least two
asked by _mixed.ray_ 
Math
Mr Campbell has a rope14m long.He cuts it into equal pieces. Each piece is 2m long. How many pieces of rope does he get?
asked by Lucille 
Social studies
What inference can be drawn from the lack of US action in response to Japanese aggression against China in 1937 AAmericans supported the Japanese over the Chinese. B Americans did not believe Japan threatened them directly Cthe United States did not
asked by secretly 15 dragons#6069 
Math
Question : find (h,k) and radius x^2 + y^2 +1/2x + 2y +1/16 = 0 According to the equation : (x−h)^2+(y−k)^2 = r^2 x^2 + y^2 +1/2x + 2y +1/16 = 0 (x^2+1/2x+1/16)+(y^2+2y+1)=−1/16+1/16+1 (x+1/4)^2+(y+1)^2=1 so (h,k) = (1/4, 1) and r = 1 theres no
asked by K 
Math
Which type of function bet models the data in each table? Use differences x y 12) 0 0 1 1.5 2 6 3 13.5 4 24 13) x y 0 5 1 3 2 1 3 1 4 3 14) x y 0 1 1 1.2 2 1.44 3 1.728 4 2.0736 Can someone help me plz with these three??
asked by that emo girl! 
Science
The average efficiency of energy capture/ transfer reaction in an organism is about 40%. Is this efficient? Why or why not? Use examples of other energy transfer systems in your explanation (cooking, lighting, fuel burning etc.). Can someone please help me
asked by Kassi 
math
22/7 for pi answer estimate
asked by francesca. 
algebra 2
for what values of theta are the tangent 0?for what values of theta is the tangent undefined?explain.
asked by lexi 
algebra 2
a sound wave is modeled with the equation y=1/4 cos 2pi/3 theta. a.find the period.explain b.find the amplitude.explain
asked by lexi 
Health
How can tobacco affect the circulatory system? A. Decreases heart rate B. Raises blood pressure C. Softens the arteries D. Causes ulcers How can tobacco affect the body? A. Increases appetite B. Makes teeth whiter C. Slows heart beat D. Causes nausea How
asked by emily 
social studies
Muhammad and his followers journeyed from makkah to __ during what is called the Hijra? plz help i am on a test!
asked by jishka is cool 
Maths
Two chords AB and CD of A circle intersect at right angle at a point inside the circle if m(angle BAC is 35 degree find m(angle ABD)
asked by Amen 
History
Which of presidents carters politics best explains his defeat in the 1980 election? A reforms to social security and the tax code ***** B support for human rights C foreign policy in the Middle East D constructive responses to inflation Is this correct?
asked by Lmaoo 
English
Choose the word or phrase that best defines the italicized word. "An aged man is but a *paltry* thing,/ A tattered coat upon a stick..." a.inadequate b.invisible c.significant d.unwise
asked by Anon 
history......Mrs. Sue
How did glasnost contribute to the breakup of the soviet Union? A. restructuring the economy led to a change in the political structure*** B. by allowing citizens more freedom to travel people could see what they were missing C. due to cuts in military
asked by cole 
Spanish 2
Explain the difference in meaning between these two sentences: 1. Alberto oyo la musica de la fiesta y salio de casa. 2. Alberto oia la musica de la fiesta cuando salio de casa. There are accents but I can't put them on here. I'm pretty sure the sentences
asked by Brooklyn 
science
Isn't part of my homework, but I'm curious Does water evaporate faster from a body of water with a bigger surface area?
asked by Anonymous 
Math
Emilio has 8450 trees to plant in rows on his tree farm he will plant 125 trees per row how many full rows of trees will he have explain
asked by Shadow 
Math
Which table best represents the graph of the equation theta=45 degrees? a. theta 45 degrees, 45 degrees, 45 degrees, 45 degrees r 1 , 2 , 3 , 4 b. theta 45 degrees, 90 degrees, 135 degrees, 180 degrees r 1 , 2 , 3 , 4 c. theta 45 degrees, 45 degrees,
asked by girly girl 
Calculus
A car travels along a straight road for 30 seconds starting at time t = 0. Its acceleration in ft/sec2 is given by the linear graph below for the time interval [0, 30]. At t = 0, the velocity of the car is 0 and its position is 10. What is the velocity of
asked by Anonymous 
English
Choose the group of words in each sentence that is missing hyphens. If no hyphen are needed, select Correct as is. 1: We have had up to date insulation put into the walls of our house. A:up to B:up to date*** C:date insulation D:Correct as is 2:Hilary
asked by marylyn 
Calculus
Find the interval on which the curve of y equals the integral from 0 to x of 6 divided by the quantity 1 plus 2 times t plus t squared, dt is concave up.
asked by Ernie 
chemistry
Acid: Pka: H20 15.7 NH3 38 HCL 8 NH4+ 9.2 Given the list of pKa values, which acid will have the largest amount of conjugate base present in the solution at equilibrium? H2O NH3 NH4+ HCl
asked by chemgack 
physics
How is light emitted from incandescent lamps? Fluorescent lamps? Candles?
asked by Jayde 
algebra
Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 12 8 3 23 Female 19 18 4 41 Total 31 26 7 64 If one student is chosen at random, Find the probability that the student was NOT a male that got a "A"
asked by rosia 
Geometry
What is the radius of a cylinder with a volume of 432pi cm^3 if the height of the cylinders is equal to its diameter?
asked by Ethan 
Maths
On a blueprint,the length of a wall is 5 inches. The actual length of the wall is 85feet. What scale is used for the blueprint
asked by Great 
Algebra
A total of 23,456.78 dollars was invested in two funds paying 2½ percent and 1¾ annual interest. The combined interest for the year percent is 368 dollars and 50 cents. Part A: How much of the 23,456.78 dollars is invested in 2½ percent fund? Part B:
asked by Samay 
Organic Chem
what is the pka of anhydride? i've searched the whole web and can't seem to find the pka of the functional group.
asked by Sara 
science
Given the list of pKa values, which acid will have the largest amount of conjugate base present in the solution at equilibrium? Acid: Pka: H20 15.7 NH3 38 HCL 8 NH4+ 9.2 H2O NH3 NH4+ HCl
asked by jennifer 
science
Is the flame coloration a test for the metal or for the acid radical?
asked by marie 
physics
can anyone please help me with answering this question? : An accelerating body has a Net Force acting in the direction of motion. True or False? Why?
asked by Ange 
physics
A circuit is powered by a 5 V battery and has 0.2 A of current through it. If the circuit contains two resistors connected in series and one of the resistors has a resistance of 5 Ω, what is the resistance of the other resistor?
asked by henry 
physics
In the circuit at right, two resistors are connected in parallel. What is the voltage across the 4 Ω resistor? What is the voltage across the 12 Ω resistor?
asked by henry 
English
Having trouble finding two different published analysis of Huckleberry Finn. Could you guide me in the right direction
asked by Sue 
Algebra 1
Measures of Central Tendency and Dispersion Practice 2. Tell which measure of central tendency best describes the data. Time spent on Internet (min/day) 75 38 43 120 65 48 52 A. Mean B. Median C. Mode Help? I really don't understand this :/
asked by anon 
science
A satellite in space experiences direct sunlight and heats up. During periods when it receives no sunlight, The satellite cools off by radiation The satellite cools off by conduction The satellite maintains a constant temperature The satellite cools off by
asked by ... 
6th grade math
A jogger is running around a 3/4 mile track and is 2/3 around the track. How far has the jogger traveled?
asked by Kimberly 
Chemistry
Why equilibrium is constant less than 1?
asked by Nane 
Precalc
According to an article by Thomas H. McMahon in the July 1975 issue of Scientific American, a tree’s height varies directly with the radius of the base of its trunk. He expressed this relation using the formula h = kr^2/3 where k is a constant, h is the
asked by Summer 
Science
Flying an airplane at 500 km/h, a pilot plans to reach her destination in 5 h. But she finds a jet stream moving 250 km/h in the direction she is traveling . If she gets a boost from the jet stream for 2 h how long will the flight last?
asked by Cindy 
geography
where is the continental boundary between North and South America? Isthmus of Panama? Is this considered a continental boundary? Thanks
asked by Anonymous 
Algebra
A rectangular pool was 5 m longer than it was wide. When a brick walkway 1m wide was added around the pool, the area was increased by 36 m^2. Find the dimension of pool itself. Dimension of pool: Length= x Width= x5 So I know the area= x(x5) = x^25l And
asked by ? 
English
After dinner, what do you do? 1. I watch TV for about an hour. 2. I see TV for about an hour. [Can we use 'see' instead of 'watch' in this answer?]
asked by rfvv 
Math
After 5 years, how much INTEREST will Kevin earn in interest from his savings account? Given the fact: Kevin deposits $175 each year on his birthday for 5 year into his savings account. His account earns simple interest at a rate of 3.5% interest. A.)
asked by Help in Math 
Chemistry
When a 2.5 mol of sugar (C12H22O11) are added to a certain amount of water the boiling point is raised by 1 Celsius degree. If 2.5 mol of aluminum nitrate is added to the same amount of water, by how much will the boiling point be changed? Show all
asked by Eolhc123 
Geometry
Water has a density of about 62.5 pounds per cubic foot. Snow has a lower density than water, but that density can vary greatly. Suppose snow that is falling and settling has a density of about 16 pounds per cubic foot. 8 inches of snow has fallen and you
asked by Anonymous 
chemistry
What are some examples of glycosidic bonds and peptide bonds?
asked by Anonymous 
Science
Fresh water. My techer marked it as correct
asked by Anonymous 
Chemistry
Given the table of pKa values, at a pH of 3.5, which substance(s) exist predominantly in the nonprotonated form? Acid pKa HNO3 1.3 HSCN 4.0 HCN 9.4 HOCI 7.4
asked by HELPP 
ss
what were the disadvantages of using coal as a fuel for industry in Eastern Europe
asked by damu to Costa 
algebra
Silver is liquid for Celsius temperatures C such that 960.8 degrees (less than or equal to) C < 2180 degrees. Find such an inequality for for the corresponding Fahrenheit temperatures.
asked by Carol 
AP Calculus AB
Hi. Please help me with the following question: lim x>1 (x)/(ln(x))
asked by Rayan