Questions Asked on
March 22, 2018

Math:)
A person is on the outer edge of a carousel with a radius of 20 feet that is rotating counterclockwise around a point that is centered at the origin. What is the exact value of the position of the rider after the carousel rotates 5pi/12 radians? a.
asked by girly girl 
History
"With malice toward none, with charity for all...let us strive...to bind up the nation's wounds...to do all which may achieve a just and a lasting peace among ourselves and with all nations."  Abraham Lincoln, Second Inaugural Address Based on the lesson
asked by Baby_Banana 
Math:)
Prove csc(pi/2x)=sec x. a. csc(pi/2x)=1/sin(pi/2)cosx+cos(pi/2)cosx=sec x b. csc(pi/2x)=1/sin(pi/2)sinxcos(pi/2)cosx=sec x c. csc(pi/2x)=1/sin(pi/2)sinx+cos(pi/2)cosx=sec x d. csc(pi/2x)=1/sin(pi/2)cosxcos(pi/2)sinx=sec x
asked by girly girl 
Algebra
Which solid has one base that is a rectangle and four lateral surfaces that are triangles? A. triangular pyramid *** B. cone C. rectangular prism D. rectangular pyramid A solid with two parallel and congruent bases cannot be which of the following? A. cone
asked by AJo 
precalc
A Ferris wheel is 50 meters in diameter and boarded from a platform that is 4 meters above the ground. The six o'clock position on the Ferris wheel is level with the loading platform. The wheel completes 1 full revolution in 8 minutes. How many minutes of
asked by Mike 
Spanish
Countries of the Caribbean Basin generally share the same ______. A) traditions B) geography C) climate*** D) culture Please check my answer, thanks.
asked by Daniella 
math
Lynne is 25 years old and starting an IRA (individual retirement account). She is going to invest $150 at the beginning of each month. The account is expected to earn 5.5% interest, compounded monthly. How much money, rounded to the nearest dollar, will
asked by Anonymous 
chemistry
A vinegar contains acetic acid, CH3COOH. Titration of 5.000g of vinegar with 0.100, NaOH requires 33.0 ml to reach equivalent point. What is the weight percentage of CH3COOH in vinegar?
asked by Anonymous 
Spanish
Explain how to form the usted form of the imperative of the regular ar verb hablar I know that ar verbs end in e
asked by Help? 
Spanish
1. Mi madre insiste en que ____ en el aeropuerto a las 2. A) estabamos B) estemos C) estamos D) estar I'm confused between B and C because I don't know if I should use the indicative or subjunctive form. Please help. 2. Prohiben que los turistas les ____
asked by Daniella 
History
1. What role did colonialism play in the setling of the Pacific Northwest
asked by Smart guy 
History
explain the purpose of reconstruction . Got a difference between Lincoln's plan and the plan implemented by the radical republicans. It knees 34 sentences .
asked by Katt09 
History
Why did John Wilkes Booth assassinate President Lincoln? A. Booth thought Lincoln was too easy on Southerners. B. Booth had lost is a series of slavery debates with Lincoln. C. Booth was angry about the Confederate defeat. D. Booth was a Confederate
asked by Baby_Banana 
Algebra 1
Multiple choice 1.x+5=18 5 or 5 (a) 13 or 13(b) 18 or 18(c) 23 or 23(d) 2. y+4
asked by Jhonei 
algebra
A ball is thrown straight up from a rooftop 240 feet high. The formula below describes theÃ¢â‚¬â€¹ ball's height above theÃ¢â‚¬â€¹ ground, h, inÃ¢â‚¬â€¹ feet, t seconds after it was thrown. The ball misses the rooftop on its
asked by Anonymous 
Algebra
A carpenter is putting a skylight in a roof. If the roof measures 10x + 9 by 7x + 7 and the skylight measures x + 5 by 3x + 3, what is the area of the remaining roof after the skylight is built? A.) 67x^2 + 115x + 48** B.) 73x^2 + 151x + 78 C.) 70x^2 +
asked by Dylan 
geometry
Find the missing value to the nearest hundredth sin ___=18/27 56.31 48.19**** 41.81 33.69 Please check my answer
asked by Lost 
Business
PLEASE HELP 1.Create a diagram of the U.S banking system and the Federal Reserve System(FRS). Include special financial services of the banking system in your diagram. Be creative in this activity. Pretend you have been asked to teach the structure and
asked by henry 
science
Multiple Choice 1. Which of Earth's spheres contains mountains, valleys, and other landscapes? (1 point) atmosphere biosphere geosphere hydrosphere 2. Which of the following are examples of destructive forces? (1 point) ice wind both ice and wind neither
asked by Chairflip 
history
in lincolns second inaugural adress he says with malice toward none with charity for all what does this quote reveal about lincolns attitude toward the south a. forgiveness b. hatred c. indifference d. envy
asked by sammy 
Physics
Suppose a block of mass of lead of mass 0.4kg at temperature 95°C is dropped in 2kg of water originally at 20°C in a container.calculate the final temperature if no heat is lost to the container and environment;
asked by Timothy 
Math
The basketball court is 50 feet across by 94 feet long. There is a black line painted around the entire basketball court. What is the total area of the basketball court?
asked by Jay 
Chemistry
What is the percentage yield of N2O5 when 68.0g of O2 reacts With N2 according to the reaction equation, with 72.6g of N2O5 being obtained? 2N2 + 5O2 > 2N2O5
asked by Donna 
Science
How does NASA's guest blogger support her claim that there are role models for communicating scientific information? (A) She names her own personal favorite resources for scientific information. (B) She lists several sources of scientific information that
asked by Anonymous 
Earth science
If a sample contains 50g of carbon 14 and 50g of nitrogen 14 , how many lives has it undergone ?
asked by Don 
History
Describe how sharecropping worked. Provide details about how this helped or hurt the individual sharecroppers. if you could help THANK YOU!!!
asked by MinMin 
chemistry
What volume of 10 percentage (mass/volume) solution of Na2CO3 will be required to neutralise 100mL of HCl sution containing 3.65g of HCl.
asked by Raveena 
math
Donald is hiring employees for his new small business. He expects to produce 6 units per employee, and he expects demand to be at least 36 units per day. He plans to pay each employee a yearly salary of $50,000 and has a budget of $400,000 per year to pay
asked by teresa 
Physics
A transformer is to be used to provide power for a computer disk drive that needs 5.8 V (rms) instead of the 120 V (rms) from the wall outlet. The number of turns in the primary is 414, and it delivers 500 mA (the secondary current) at an output voltage of
asked by ricky 
Math
The first quarter of the championship game lasted 48 minutes. The second quarter lasted 52 minutes. There was a special presentation at halftime that lasted 25 minutes. The third quarter lasted 54 minutes and the fourth quarter lasted 49. If the game
asked by Steve 
Geometry
Given triangle KLM is CONGRUENT to triangle NOP, KL = 2y, LM= 6, KM = 8, NP = 2x2y, and ON = X. Determine the measures of x and y. I drew out the two triangles and I know I’m gonna have to solve to get x and y but the two variables are confusing me so
asked by Stan 
Math
n harmonic means have been inserted between 1 and 4 such that first meant:last mean=1:3,find n.
asked by SHUBHAM KUMAR 
Calculus
a stone is thrown into a pond creating ripples that are concentric circles. the rate of change of the radius of the circle is 3 ft/min. if the radius is 0 at the time=0, how fast is the area increasing after 4 minutes
asked by Darylynn 
physics
While running a race, Abigail’s heart was beating at 170 beats per minute. What was the period of her heartbeat?
asked by nor 
Algebra 1
A tub can be filled in 15 minutes by the hot water faucet and in 12 minutes by the cold water faucet. The drain can empty the tub in 20 minutes. How long will it take the tub to fill if both of the faucets and the drain are open?
asked by ? 
physics
If the period of an oscillator doubles, what happens to its frequency?
asked by altaif 
physics
A mass m = 88 kg slides on a frictionless track that has a drop, followed by a looptheloop with radius R = 15.5 m and finally a flat straight section at the same height as the center of the loop (15.5 m off the ground). Since the mass would not make it
asked by amanda 
Math
the expression below, each letter represents a different digit from 1 to 9. What are the three fractions? ( A/DE)+(B/FG)+(C/HI)=1
asked by Harsha 
Math
Sixteen teams are playing in a basketball tournament. Each team will play one game against another team during the first round of the tournament. There is only one gym, so only one game can be played at a time. They have 6 hours to complete the first
asked by Joey 
Geometry
The problem is, triangle ABC is an isosceles triangle where
asked by Stan 
physics
A mass m = 88 kg slides on a frictionless track that has a drop, followed by a looptheloop with radius R = 15.5 m and finally a flat straight section at the same height as the center of the loop (15.5 m off the ground). Since the mass would not make it
asked by katie 
Chemistry
What is the relation between pH and pOH? Is the relation positive, negative or neutral?
asked by Summer 
Business math
A borrower is repaying a loan with payments of $3000 at the end of every year over an unknown period of time. If the amount of interest in the third instalment is $2000, find the amount of principal in the sixth instalment. Assume that interest is 10%
asked by Anonymous 
physics
A Foucault pendulum is observed to swing backandforth once every 20 seconds. What is its frequency?
asked by nor 
Math
Which is NOT a function? A y – x = 6 B y = 2x C x = 2 D y + x = 12 I don't understand what a function is, and my answer choice is D, if I'm wrong, please help
asked by PugSimmer 
physics
The 3.0 cm diameter water line in the figure splits into two 1.0 cm diameter pipes. All pipes are circular and at the same elevation. At point A, the water speed is 2.0 m/s and the gauge pressure is 50 kPa. What is the gauge pressure at point B?
asked by Dr.B 
physics 2
the primary coil of a transformer has N1 = 375 turns, and its secondary coil has N2 = 1,875 turns. If the input voltage across the primary coil is Δv = (120 V)sin ωt, what rms voltage is developed across the secondary coil?
asked by monica 
English
1.The bluffs are so steep that they _____ be scaled, even by experienced climbers. a. can't hardly b. can hardly B 2. Boats carefully thread their way _____ the tricky and sometimes dangerous rocks and rapids in the Buffalo River. a. among b. between B
asked by cristaln 
harmonic motion
A nervous student taps his foot seven times every 2 seconds. What is the frequency of his tapping?
asked by alaa 
English
1.We had to travel several miles _____ into the Arkansas Ozarks to locate the Buffalo River. a. further b. farther A 2._____ this river is only 130 miles long, many people are surprised that it has been designated the first national river in the United
asked by cristaln 
Calculus
What is the equation of the line which passes through the point (6,4) and is parallel to the line with the parametric equations x=5t+4 and y=t7? I think the answer is y = 1/5x + 14/5.
asked by Anonymous 
Science
How are xylem and phloem tissue 1) The same? 2) Different
asked by Noor 
Calculus
Find the equation of the line that is tangent to the curve x(t) = t^2+1 and y(t)=t^31 at the point (5,7). I get a slope of 7.5.
asked by Anonymous 
structure programming
the gross salary of five employees in maendeleo books enterprise is based on basic salary and additional benefits as follows: a).employees who have worked for the company for more than 10 years receive an additional pay of 10%to their basic salary.
asked by purity 
physics
An AC voltage of the form Δv = (65.0 V)sin(340t) is applied to a series RLC circuit. If R = 46.0Ω, C = 27.0 μF, and L = 0.300 H, find the following. (a) impedance of the circuit Ω (b) rms current in the circuit A (c) average power delivered to the
asked by Michelle 
Math
I need urgent help with these 3 math problems 1. Margaret painted a mural for St. Patrick’s Day and mixed her own green paint. She mixed 3 parts yellow paint with 2 parts blue paint to create green paint. Maureen wanted to also paint a mural with the
asked by Mike 
Maths
Experiments show that the concentration of substance X in a ﬁrst order chemical reaction at future time (in seconds) t i.e. [X] is described by the following diﬀerential equation: d[X]/ dt= .001[X], ﬁnd: (a) Find an expression for the concentration
asked by sam 
english
Why is it important to connect across generations?
asked by lol 
algebra
does y vary directly with x? if it does, write an equation for the direct variation. x = 10, 16, 20 y= 15, 24, 30 I need help pls I don't understand.
asked by boo 
Algebra 1
Leah biked down a 12km mountain road four times as fast as she peddled up the road. If Leah made the round trip up and down the road in 1 hour and 15 minutes, what was her average speed riding downhill?
asked by Anonymous 
Math
Sixteen teams are playing in a basketball tournament. Each team will play one game against another team during the first round of the tournament. There is only one gym, so only one game can be played at a time. They have 6 hours to complete the first
asked by Kimmy 
chemistry lab
what is the number of moles of a 0.05 M KMnO4 solution that react with 20 ml of a 0.02 M solution of FeCl2 if 75 ml of KMnO4 was required
asked by shawnette 
geography
does the amazon river have a delta? I think it doesn't because I read that it goes straight into the ocean, therefore having no delta. Other sources say there is a delta? what is correct
asked by Anonymous 
Math, Science
Can anyone please help me with answering this question? : Explain how displacement vectors would be used in the navigation of ships or planes
asked by Ange 
Differential Equations
I don't understand how to solve this. I can solve the left side and get yc, but I have no idea how to solve for the right side. y''3y'+2y=(e^2t)/(e^t+1)
asked by Anonymous 
math
"Determine the point of intersection of each pair of equations by plotting accurate graphs." This question asks to 'determine' the point of intersection by plotting accurate graphs. I'm not sure how one is supposed to be able to 'determine' the point of
asked by anonymous 
Continuity equations
I have the continuity equation as shown here: imgur(dot)com/NRfMphl(dot)jpg I need to find (deduce) this same equations with several considerations: Assuming taht E is very small and working with minority Assuming steady state conditions Assuming low
asked by Continuity Equations  AEC 
Social Studies help please!!
Explain why polk was able to win the presidency. What did he campaign in support of? I mean i did the first question the explain how he was able to win the presidency but i don't understand the second question? Can someone help me please?
asked by Some help 
Science
Explain how xykem tubes help support a plant.
asked by Noor 
Science
What happens at the root tip?
asked by Noor 
English
On the way home, Mom smiles and says, "Good job, Hojin. The concert is over. Move and laugh now. It's okay."  In this context, in the last sentence, 'What does 'It' refer to?
asked by rfvv 
math
Find the value of a if y=((2a+1)/3)x+b is parallel to y = x 3 I'm kind of confused of how I should solve this :/ It tells me to find 'a,' but i'm not too sure where to start. Thank you for your help :)
asked by anonymous