Posts by Sadie
Total # Posts: 191
A coin is tossed 7 times. What is the probability that the number of heads obtained will be between 2 and 4 inclusive? Express your answer as a fraction or a decimal number rounded to four decimal places.
February 22, 2017
For the reaction CS2+3Cl2=CCl4+S2Cl2, calculate the percent yield if 719 g of CCl4 are produced when 410 g of CS2 react w/ an excess of chlorine. I have absolutely no clue on how to do this!! If I could get some help that would be great!!
February 7, 2017
Lab: Determining the Quantity of Vitamin C in Fruit Juice Vitamin C, also called ascorbic acid, is commonly found in commercial fruit juices and drinks. In this activity you will analyze data collected from a titration analysis of a fruit juice. The nutrition facts for a 200-...
November 28, 2016
a sled mass of 50kg is pulled horizontally over flat ground. the static friction coefficient is .30, and the sliding friction coefficient is .10. what minimum amount of force must be applied to the sled in order to start it moving? i got 147.15N what amount of applied force ...
October 18, 2016
Which of the following describes the operating system? A - It commands and controls all of the hardware and other software applications ** B - It contains the circuitry that processes the information coming into the computer. C - It is one of the physical components of the ...
September 8, 2016
Tony works in a factory that produces 1,000 computers each day. When 50 computers were sampled, it was fount that 7 were defective. Estimate how many defective computers are made each day.
May 18, 2016
Please use one graph per country and show both the autarky and the free trade equilibrium on each graph. Consider the following data on the factor endowments of two countries A and B: Countries Factor Endowments A B Labor force: L 100 workers 50 workers Capital Stock: K 60 ...
March 2, 2016
math help plz?
Can someone help me plz? Oh and where u see _> the line is underneath the > I just didn't know how to get it under there. Bobby hopes he will someday be more than 7 inches tall, he is currently 61 inches tall how many more inches, X, does Bobby need to grow to reach ...
December 17, 2015
An engineer sees that the angle of elevation to a vertical tower is 45 degrees. When he moves 40 feet closer to the tower on the same straight, level path, he sees that the angle of elevation becomes 55 degrees. How tall is the tower?
May 30, 2015
Which was not a sign of a religious resurgence in the 1950s? A. adding "under God" to the Pledge of Allegiance B. posting the Ten Commandments in federal buildings C. adopting "in God we trust" as the national motto D. using the media to deliver religious ...
May 2, 2015
Please help -_-
Troy can order a large or small snow cone. There are 16 flavors and 2 toppings from which to choose. How many ways can Troy order a snow cone? 120 64 32 30 Is it B? what do I do? You don't have to answer but can someone just tell me how could I answer this myself..
April 29, 2015
Troy can order a large or small snow cone. There are 16 flavors and 2 toppings from which to choose. How many ways can Troy order a snow cone? 120 64 32 30 Is it 64 or 32 what do I do?
April 29, 2015
Biology check my answers
Every eukaryotic cell has genetic material, A Nucleolus , A cell membrane, Ribosomes,and a Cytoplasm. The genetic material in the cell, (the DNA) is in a chromatin which allows the DNA to then fit inside the nucleolus. The nucleolus makes ribosomal subunits in the eukaryotic ...
October 18, 2014
Randi takes the stairs at work whenever possible instead of the elevator. She must climb up 51 steps from her office to get to the accounting department. The human resources department is 34 steps below her office. How many steps are there between human resources and accounting?
September 3, 2014
Rational Equations Solve: How do you work it out? 1. x/4 - x+2/3 = 12 (x+2 are in the numerator) 2. 2y/4 - y/7 = y-3/2 (y-3 are in the numerator) 3. p/6 - 2p/5 = 4p-5/15 (4p-5 are in the numerator)
April 24, 2014
algebra 1 help please ASAP
Divide and simplify. 1. 2y^2 - 7y + 3/2y^2 + 3y - 2 divided by 6y^2 - 5y + 1/3y^2 + 5y -2 2. x^2 + 13x + 12/x + 2 divided by (x + 1) Please explain! Thanks!
February 9, 2014
divide and simplify . 1. 5x^4/3 divided by 5x^2/6 2. 3/a^5 divided by 3/a^2 3. 6m^4/5 divided by 2m Can someone help me do these? and explain them? because I don't understand how to do them. thanks.
February 8, 2014
How am I supposed to answer this question on the lab write-up? I have the date, but I don't know the formula or process to use. Thanks. Organizing Data: Using your estimate of the threshold frequency from your first data table and your measured value of ft for sodium from ...
May 21, 2013
A person, sunbathing on a warm day, is lying horizontally on the deck of a boat. Her mass is 59.6 kg, and the coefficient of static friction between the deck and her is 0.696. Assume that she is moving horizontally, and that the static frictional force is the only force acting...
December 19, 2012
A catapult gives a rock a vertical velocity of 122m/s. a. Determine the time the rock is in the air. b. Determine the maximum height the rock would reach. c. As the rock leaves the catapult the rock also has a horizontal velocity of 34m/s. solve for the rocks range. d. Solve ...
November 19, 2012
John runs at 4.6 m/s for 7.53 s along the x axis. How far does John run? Answer in units of m AND What relationship should be used to solve this situation? 1. x = v − t 2. x = v t 3. x = v + t 4. None of these 5. x = v
October 22, 2012
7th Grade x y input output tables
i need help with x and y input output tables for 7th grade i don't understand what 5x means or what to do! Math hw problems: 1. y=4x+3 x=1,2,5,10,20 2.d=3.5t t=1,2,5,10,20 Please help ASAP!!!!!
October 9, 2012
The mathematician Augustus DeMorgan lived his entire life during the 1800s. In the last year of his life he announced "Once I was x years old in the year x^2". In which year was he born?
October 2, 2012
3.) It is a permanent fixture in Congress. The House often has a difficult time achieving a quorum, so to get around the quorum requirement the House convenes a Committee on the Whole.In this tactic, the entire House becomes a single committee and can operate with only 100 ...
March 5, 2012
A carpenter has been hired to cover a 12-foot by 14-foot kitchen with an arrangement of 2-inch square tiles along the outside edges of the floor and 8-inch square tiles for the rest of the floor. The 8-inch square tiles come 24 in a box and the 2-inch square tiles come 48 in a...
March 2, 2012
Lee has 35 dimes and quarters that total $5.00. Solve the system of equations to find how many dimes and how many quarters he has. d+q=35 0.1d+0.25q=5 Please show your work thanks
February 25, 2012
Mrs. Lincoln budgets her monthly take-home pay. The remainder she deposits in her savings account. She budgets 1/3 of her take-home pay rent, 1/8 for car expenses, 1/6 for food, 1/24 for insurance and 1/16 for entertainment. What is Mrs. Lincoln's monthly take-home pay if ...
February 15, 2012
Can someone help me with the grammar of this sentence? Or just translate the english to korean? 그는 항상 연애운이 없었어요. It's suppose to translate to 'He is always been unlucky in love' ...
October 19, 2011