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Lindsey
Questions (248)
A baseball pitcher in good form can throw a baseball that attains a speed of 86 mi/h in a distance of 1.3 m. Assume that the
0 answers
454 views
A drug trial is testing the effectiveness of two drugs, If 50 patients are given Drug A, 20 patients are given Drug B, and 100
2 answers
1,106 views
You want to determine the number of text messages students at your school make in a month. You select 10 freshmen, 10
0 answers
573 views
A spinner is numbered 1-8. What are the ODDS of landing on a number greater than 5?
1 answer
677 views
You have the numbers 1–24 written on slips of paper. If you choose one slip at random, what is the probability that you will
1 answer
826 views
A drug trial is testing the effectiveness of two drugs. If 40 patients are given Drug A, 80 patients are given Drug B, and 20
2 answers
496 views
In a batch of 860 calculators, 9 were found to be defective. What is the probability that a calculator chosen at random will be
1 answer
1,712 views
In a batch of 280 water purifiers, 12 were found to be defective. What is the probability that a water purifier chosen at random
1 answer
480 views
A construction company orders 2900 new light bulbs for a new office building. If the probability of a light bulb being defective
1 answer
645 views
In a batch of 280 water purifiers, 12 were found to be defective. What is the probability that a water purifier chosen at random
2 answers
662 views
A cell phone company orders 400 new phones from a manufacturer. If the probability of a phone being defective is 2.1%, predict
1 answer
689 views
A cell phone company orders 400 new phones from a manufacturer. If the probability of a phone being defective is 2.1%, predict
2 answers
509 views
if the coefficient of static friction between a 55 kg box and the floor is 0.67 with what minimum horizontal force must it be
2 answers
416 views
What method(s) would you choose to solve the equation? Explain your reasoning.
4x^2-48=0 a. Quadratic formula, graphing; the
1 answer
2,424 views
A model rocket is launched from a roof into a large field. The path of the rocket can be modeled by the equation y =
8 answers
3,282 views
A model rocket is launched from a roof into a large field. The path of the rocket can be modeled by the equation y =
1 answer
724 views
A sample of 4 balls is to be selected at random from an urn containing 18 balls numbered 1 to 18. Five balls are green, 6 balls
1 answer
935 views
Log2 (x-6) + log2 (x-4) - log2 X=2
3 answers
2,190 views
I am trying to find the integral of e^(6x)sin(7x). Apparently, the answer is (6e^(6x)sin(7x) - 7e^(6x)cos(7x))/85) + C and
1 answer
1,751 views
A $10,000 loan is to be amortized for 10 years with quarterly payments of $349.72. If the interest rate is 7%, compounded
1 answer
683 views
When Maria Acosta bought a car 2.5 years ago, she borrowed $10,000 for 48 months at 7.8% compounded monthly. Her monthly
1 answer
1,764 views
What amount must be set aside now to generate payments of $30,000 at the beginning of each year for the next 13 years if money
1 answer
996 views
A year-end bonus of $24,000 will generate how much money at the beginning of each month for the next year, if it can be invested
1 answer
938 views
the bulletin board in Shain's classroom is 3 1/4 feet by 4 1/2 feet.
what is the area of the bulletin board? is this right? 24
2 answers
809 views
Danielle spend 2/5 of her paycheck on bills. Her water bill was 1/6 of what she spent on bills. What part of her paycheck went
3 answers
1,962 views
What are 10 ways to increase voter turnout in the United States? If possible, rovide justification for each one because some of
1 answer
474 views
Your test scores in one class are 81 and 87. What possible scores can you earn on your next test to have a test average between
6 answers
2,980 views
In preparing to shoot an arrow, an archer pulls a bowstring back 0.49 m by exerting a force that increases uniformly from 0 to
1 answer
716 views
A cashier has a total of 34 bills, made up of ones, fives, and twenties. The number of fives is one less than the number of
4 answers
1,765 views
A health inspector wants to check compliance with a new city ordinance on meat storage. Since he can only inspect 10 of the 33
1 answer
558 views
if a leaky faucet drips eight ounces of water per minute how many gallons per day is that
1 answer
571 views
The Fun Guys game rental store charges an annual fee of $20 plus $6.50 per game rented. The Game Bank charges an annual fee of
2 answers
2,318 views
Using the following equations as a guide (some may be used, some may not-choose wisely)
y1 OR x1= initial position x2 or Y2
1 answer
587 views
An explorer is stranded in the desert. A rescue service has located him using GPS, but can reach him only by plane. A supply
4 answers
622 views
Add or Subtract
1.) 3 7/12 + (-2 4/5)
1 answer
377 views
A boat travels across a wide river. if the boat can travel at a speed of 25 mph and its pilot heads in a direction of 30
1 answer
839 views
on Monday morning, a mechanic has no cars in her shop. the table at right shows the number of cars dropped off and picked up
6 answers
793 views
39.3 grams of c6h6 are allowed to react with 108.3 grams of o2. How much co2 will be produced by this reaction?
1 answer
2,404 views
Identify the initial amount a and the decay factor b in each exponential function.
1.) y= 0.1* 0.9^x
1 answer
890 views
Calculate:
In the following equation, 417.96 g of Bi (bismuth) reacts completely with 200 g of F (fluorine.) How many grams of
2 answers
2,188 views
I have no idea how to do this, and I'm not sure what the formula is. Here's my question: In space, there is almost no air, so
2 answers
704 views
Simplify each expression.
1.) (b^ 1/6)^3 b^1/6 2.) (2x^-3)^2 (0.2x)^2 3.) (3^7)^2 (3^-4)^3
1 answer
343 views
Simplify. Write each answer in scientific notation.
1.) (3 * 10^5)^2 2.) (3.5 * 10^ -4) ^3
2 answers
565 views
Solve each system using substitution. tell whether the system has one solution, infinitely many solutions, or no Solution.
1.)
1 answer
1,096 views
what is the solution of the following system of equations?
1.) 5x + 7y =3 2x = -3y +1
1 answer
1,710 views
solve each system using elimination.
1.) 6x - 3y =15 7x + 14y =10 Tell whether the system has one solution, infinitely many
2 answers
1,020 views
Solve each system using elimination.
1.) 5x - y=0 3x + y=24 2.) 3x + 3y =27 x - 3y =-11 3.) 6x +4y =42 -3x + 3y =-6
3 answers
1,781 views
Tell whether the system has one solution, infinitely many solutions, or no solution.
1.) y= 1/2x +3 2y -x =6 2.) x= -7y + 34 x+
3 answers
575 views
solve each system by substitution. check your answers 4y +3 = 3y +x and 2x +4y =18
3 answers
1,451 views
While in Europe, if you drive 125km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per liter
1 answer
567 views
In Europe, gasoline efficiency is measured in km/L. If your car's gas mileage is 38.0mi/gal , how many liters of gasoline would
1 answer
723 views
students measured the diameters and circumferences of the tops of a variety of cylinders. Below are the data that they
0 answers
717 views
Identify these functions
galvanometer step-up transformer electric motor generator electromagnet step-down transformer commutator
4 answers
722 views
Which ordered pai is a solution of y= -6x -7?
A.(0.5,-4) B.(2,-19) C.(-2,-5) D. (3,11)
1 answer
449 views
Which property is illustrated by 45 + 19 = 19 + 45?
A. Commutative property of addition B. Identity property of Addition C.
2 answers
2,135 views
What is the value of the expression (-7) (3)- (5)(-3)?
1 answer
455 views
jack is taking his family to the fair. he plans to take $5 for each admission ticket plus $35 for food. Write an equation that
6 answers
1,041 views
simplify (x^2 +6) - (3x^2 - 2x -5)
1 answer
385 views
Fill in the blanks using the correct term from the list below.
Active Combustion free heating systems passive heat pump thermal
5 answers
976 views
The transfer of thermal energy by convention and conduction both require what?
Unscramble atterm
3 answers
475 views
At a swim meet, a parent is videotaping his son from a seat in the stands that is 20 meters past the starting line and 8 meters
0 answers
719 views
Let x,y, and z be nonzero real numbers. Find all possible values of
x/|x|+y/|y|+z/|z|+xyz/|xyx|.
1 answer
529 views
Please also, help me set up this problem.
Acetylene, C2H2, can be converted to ethane, C2H6, by a process known as hydrogenation.
2 answers
1,983 views
Help me set up this problem. I have been looking at a few examples of similar problems and I keep getting the wrong answers. I'm
2 answers
1,608 views
Think Critically.
The mechanical advantage of a machine is less than one. Compare the distances over which the input and output
0 answers
587 views
Need Boys #'s
1 answer
353 views
A 30-pack of blank CDs costs $9.50. A 50-pack of blank CDs costs $13. How can you tell which is the better buy?
3 answers
934 views
why is the kinetic energy of the lumber higher on the truck during the delivery than when it drops from the carpenter's
1 answer
1,497 views
Explain the role friction plays in the conservation of energy.
3 answers
711 views
A beauty salon buys bottles of styling gel for $4.50 per bottle and marks up the price by 40%. For what price does the salon
1 answer
643 views
A certain amount of chlorine gas was placed inside a cylinder with a movable piston at one end. The initial volume was 3.00 L
1 answer
944 views
Erin buys a bag of peanuts that weighs
3/4 of a pound. Later that week, the bag is 2/3 full. How much does the bag of peanuts
8 answers
1,775 views
The test Keyshawn's class took finished at 10:30 A.M. The first part of the test took 30 minutes. There was a 15 minute break.
2 answers
1,773 views
Will arrived at his mother's office at 3 P.M. It took him 30 minutes to walk from his home to the mall. He was in the mall for
4 answers
1,484 views
Explain how you know 6/6 and 1 are equivalent?
7 answers
2,160 views
a teacher on her way to work passes through 3 stoplights each morning. the distances between the stop lights are great and the
1 answer
688 views
How often would a restriction enzyme such as Not I, which has 8 nucleotides in its recognition sites 5’-GCGGCCGC-3’, cleave
0 answers
645 views
How might the formation of Pangaea have led to mass extinctions at the end of the Permian period, about 250 million years ago?
1 answer
513 views
I give medals and 'best answer' :) I need help asap!
Which of the following is one way to assess whether or not a learning game
68 answers
30,141 views
Please help me, i really need to get this. the only question/essay im stuck on. Answer the following questions about the essay
1 answer
723 views
A barefoot field-goal kicker imparts a speed
of 44 m/s to a football initially at rest. If the football has a mass of 0.49 kg
1 answer
671 views
A Cyclist is riding on a path whose elevation is modeled by the function f(x) = 0.08(16x-x^2) where x and f(x) are measured in
1 answer
996 views
A cyclist is riding on a path whose elevation is modeled by the function F(X)=0.2x where x and f(x) arte measured in miles. Find
5 answers
1,197 views
Suppose you are asked to find the area of a rectangle that is 2.1-cm \rm cm wide by 5.6-cm \rm cm long. Your calculator answer
6 answers
11,629 views
How much silver is present in 3.5 ml of a 1 molar silver nitrate solution?
1 answer
402 views
The sound emitted by bats has a wavelength
of 3.45 mm. What is the frequency in air? The speed of sound in air is 343 m/s.
1 answer
1,109 views
If a proton is moving in a magnetic field with a speed of 4 × 106m/s and is executing uniform circular motion with a radius of
0 answers
538 views
An electron with a velocity of v = (3 x + 4 y + 2 z) × 106m/s enters a region where there is both a magnetic field and an
0 answers
552 views
A charged particle is moving downward with an initial speed of 5 × 106m/s when it encounters a uniform magnetic field that
0 answers
1,004 views
An electron with a velocity of v = (3 x + 4 y + 2 z) × 106m/s enters a region where there is both a magnetic field and an
0 answers
1,144 views
An electron is shot into a uniform magnetic field B = (.5 x + .8 y)T with an initial velocity of v = (4 x + 3 y) × 106m/s. What
0 answers
456 views
Electric charge flows through a wire, which naturally has a cylindrical cross section. Suppose the charge has a current density
0 answers
583 views
Water flows through a pipe of radius 4 cm at a rate of 3.5 m/s. Suppose each water molecule is singly ionized (highly
0 answers
563 views
The work done by an external force on an electron as it moves from point A to point B is 6.3 × 10-14 J. If it was started from
0 answers
463 views
Suppose a data set has a linear regression line of y = 6 -0.8x. If the mean of the x's is 5, what is the mean of the y's?
2 5 10
1 answer
1,905 views
Charge is distributed through an infinitely long cylinder of radius R in such a way that the charge density is proportional to
1 answer
807 views
Charge is uniformly distributed along the x axis with density ß. Use Gauss' Law to find the electric field it produces, and use
0 answers
557 views
Assume that you have $10,000 which you plan to invest for 3 years. How much more would you have if you invested the funds at 10%
1 answer
1,015 views
An electron with velocity v = 2.4 × 106 m/s i encounters an electric field E = 1250 N/C i. How long will it take for the speed
0 answers
362 views
Charge Q is uniformly distributed around the perimeter of a semicircle of radius R. What is the electric field at the circle's
0 answers
556 views
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