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Christina

Questions (398)

an atom consists of 10 neutrons ,10 electrons,and 9 protons. The atom has gained an electron resulting in a charge of -1.What is
1. 0 answers
2. 494 views
The 1989 World Series San Francisco quake was initially reported to have magnitude 7.0, but later this was revised to 7.1. How
1. 2 answers
2. 492 views
in order to be able to ride a roller coaster you must be 48 inches tall .which inequality represents this situation?
1. 3 answers
2. 1,431 views
I need to solve this problem. A teacher can grade 25 papers in 4 hours. How many papers can he grade in 6 hours?
1. 1 answer
2. 462 views
if you have 200 feet of fencing to enclose four adjacent rectangular enclosures. Determine what demensions should be used so
1. 1 answer
2. 538 views
Here's the question:A 55 kg swimmer is standing on a stationary 235 kg floating raft. The swimmer then runs off the raft
1. 1 answer
2. 2,825 views
The lead female character in the movie Diamonds Are Forever is standing at the edge of an offshore oil rig. As she fires a gun,
1. 0 answers
2. 440 views
if you have 200 feet of fencing to enclose four adjacent rectangular enclosures. Determine what demensions should be used so
1. 2 answers
2. 554 views
How many moles of glucose would be present in:1Litre of a 5micromolar solution?
1. 0 answers
2. 340 views
Does molecular weight of water (H2O)= atomic weight of 2H + O = 2(1.008) + 15.999 = 18.015g ~ 18.02g (4. sig. fig.) is it
1. 0 answers
2. 463 views
1.To make the following saline solution (375ml 0.5% w/v sodium chloride).I have weighed 1.875g of NaCl. What will be the volume
1. 1 answer
2. 477 views
At Strawberry State College, the ratio of females to males is 2:1. If there are 2100 students, how many are female and how many
1. 6 answers
2. 3,318 views
On a TV game show, a contestant makes $800 for every correct answer but loses $500 for every wrong answer. After answering 26
1. 1 answer
2. 1,671 views
2. Sulfuric acid comes from the oxidation of sulfur. The stages of the reactions are given below:S + O2 --> SO2 ∆H= -296.8 kj
1. 1 answer
2. 1,153 views
Each of 2 front tires in the car is filled with a different gas. One tire contains 116 g of helium, another tire has 160 g of
1. 1 answer
2. 453 views
If you are flying to a city 800 miles away, what will be the difference in flight times between flying into a 40-mph headwind
1. 1 answer
2. 1,305 views
Jacob opens a savings account on January 1 with a deposit of $350. He has "direct deposit," in which $25 is deposited every
1. 1 answer
2. 825 views
-16343-x=-343Find x
1. 1 answer
2. 373 views
Jacob opens a savings account on January 1 with a deposit of $350. He has "direct deposit," in which $25 is deposited every
1. 2 answers
2. 2,545 views
If you are flying to a city 800 miles away, what will be the difference in flight times between flying into a 40-mph headwind
1. 1 answer
2. 1,122 views
Alex came home after school one day and found that his mother had left a plate of cookies. Alex ate 1/4 of the cookies. When his
1. 1 answer
2. 1,834 views
Below are the median prices of homes sold in 2009, by region of the country.South 158,300 Northeast 248,800 Midwest 139,500 West
1. 1 answer
2. 754 views
Name three factors of 100,000,000 that are not multiples of 10.
1. 1 answer
2. 526 views
If 72 divides m, what other numbers must divide m?If 55 divides m, what other numbers must divide m? (Enter your answers as a
1. 1 answer
2. 492 views
The factors of a number include 9, 12, and 20. What is the smallest number this could be? List all the factors of this number
1. 1 answer
2. 1,452 views
The GCF of two numbers is 15. Their LCM is 450. What are the two numbers? (Enter your answers as a comma-separated list.)
1. 2 answers
2. 973 views
A child has a large supply of dominoes, each of which measures 16 millimeters by 88 millimeters. She wants to lay them out to
1. 0 answers
2. 850 views
George vacuums the rugs every 18 days, mows the grass every 9 days, and pays the bills every 15 days. Today he did all three.
1. 0 answers
2. 800 views
Ann and Bob are cycling on a track. Ann completes one lap every 15 seconds, and Bob completes one lap every 18 seconds. When
1. 2 answers
2. 3,280 views
I am thinking of a two-digit number in which the sum of the digits is 9 and the number is even. These clues alone do not create
1. 0 answers
2. 625 views
A manufacturer sells widgets, each of which is packaged in a box whose dimensions are 8 centimeters by 8 centimeters by 8
1. 1 answer
2. 1,811 views
Suppose the U.S. federal debt was $9,400,000,000,000. Let's say that the decision was made to reduce the debt by $10 million per
1. 1 answer
2. 581 views
In order to make the most accurate calendar, the following system was devised. Leap years occur every 4 years except for years
1. 1 answer
2. 1,119 views
This problem from China is almost 2000 years old: Find a number that when divided by 3 gives a remainder of 1, when divided by 5
1. 2 answers
2. 654 views
When items in a box are put in groups of 3 or 5 or 6, there is always 1 item left over. How many items are in the box if there
1. 1 answer
2. 1,470 views
A STUDENT STUDYING THE FE+3- HSCN equilibrium put into a test tube 10.00ml of 2.00 x 10-3 M Fe(NO3)3 with 10.0 mL of 2.00 x 10-3
1. 1 answer
2. 1,060 views
Discuss the conclusions of Margaret Mead concerning temperament, and explain how she arrived at her conclusions.
1. 2 answers
2. 676 views
Why are files reduce in an organisation?
1. 1 answer
2. 338 views
A dolphin wants to swim directly back to its home bay, which is 0.85 km due west. It can swim at a speed of 4.30 m/s relative to
1. 0 answers
2. 535 views
Sheena can row a boat at 2.90 mi/h in still water. She needs to cross a river that is 1.22 mi wide with a current flowing at
1. 0 answers
2. 547 views
find the limit(if it exists), if not explain why.lim x--> 4- (3[[x]]-5)
1. 3 answers
2. 444 views
what does the cartogram tell you about japan?
1. 1 answer
2. 403 views
A school bus takes 0.92 h to reach the school from your house. If the average velocity of the bus is 18.3 km/h to the east, what
1. 1 answer
2. 583 views
Solve.(x-4)=18
1. 1 answer
2. 296 views
Solve by using the square root property.(x+7)^2=-11
1. 2 answers
2. 447 views
what are the length and width of a rectangle if the area is 13.5 square units and the length of one side is .5 the measure of
1. 4 answers
2. 699 views
I posted this question before but accidentally typed in the wrong values! Please help, I just need to know the basic formula my
1. 1 answer
2. 495 views
A motel clerk counts his $1 and $10 bills at the end of the day. He finds that hes has total of 64 bills having combined
1. 3 answers
2. 883 views
It would cost $79.59 to buy three tickets in Japan plus two tickets in Switzerland. Three tickets in Switzerland plus two
1. 1 answer
2. 442 views
A store mixes Brazilian coffee worth $11 per kilogram and Venezuelan coffee worth $15 per kilogram. The mixture is to sell for
1. 1 answer
2. 599 views
Solve by using the elimination method.9x-y=72 x+4y=45
1. 1 answer
2. 441 views
Solve by using the elimination method.7x-8y=-20 8x+7y=74
1. 1 answer
2. 1,555 views
Solve by using the elimination method.2x=2+4y -3/2x+y=-31/2
1. 1 answer
2. 423 views
What are the coordinates for each equation.3x-2y=-18 -3x-y=0
1. 1 answer
2. 328 views
Solve by the substitution method.2x+7y=16 x=22-7y
1. 1 answer
2. 759 views
Solve the system of equations by graphing.-3x-2y=18 3x-y=0
1. 1 answer
2. 401 views
Solve by the elimination method.2x-7y=-36 7x+2y=33
1. 1 answer
2. 844 views
Construct the equations of the following trigonometric functions:A)A sine function with amplitude 2, period , phase shift /3
1. 1 answer
2. 711 views
For the function -2sin(x-(pi/3)) between x = 0 and x = 2 : (6 marks)For what value(s) of x does y have its maximum value? For
1. 1 answer
2. 329 views
What is the maximum number of nonoverlapping squares with sides of length 3 that will fit inside of a square with sides of
1. 1 answer
2. 586 views
Complete the factoring.3x^3+9x^2+6x
1. 1 answer
2. 786 views
Calculate.7[6+(8)^3]
1. 1 answer
2. 844 views
Factor by grouping.7z^2+21z-az-3a
1. 1 answer
2. 443 views
Factor by grouping.20s^3+65s^2-60s
1. 1 answer
2. 371 views
Factor the trinomial.5c^c-70c+200
1. 2 answers
2. 397 views
Factor.125r^2-245
1. 1 answer
2. 636 views
1.) If the curling stone was initially sliding at 2.97 m/s and stopped precisely 10.8 meters from its launch point, then the
1. 0 answers
2. 665 views
Forces of 86 N east, 23 N north, 46 N south, 55 N west are simultaneously applied to a box of mass 13.8 kg. Find the magnitude
1. 2 answers
2. 526 views
John and Joan walk in opposite directions around a circular path, starting from the same point. The path has a radius of 50.0
1. 1 answer
2. 851 views
Nitrogen gas molecules, which have mass 4.65×10−26 kg, are striking a vertical container wall at a horizontal velocity of
1. 1 answer
2. 909 views
A net force of 30 N is applied to a 10 kg object, which starts at rest. What is the magnitude of its momentum after 3.0 seconds?
1. 1 answer
2. 1,340 views
Find the volume or the solid generated by revolving around the region bounded by the graphs of the equations about line x=6.
1. 1 answer
2. 1,448 views
Solve the equation. If necessary, round to the nearest thousandth.5(2x-1)=10
1. 1 answer
2. 603 views
The boiling point of ethanol is 78.5C and delta H vap = 40.5kJ/mol. Calculate the vapor pressure (in torr) of ethanol at 0.0C ?
1. 2 answers
2. 561 views
Write an exponential function to model the situation. Then predict the value of the function after 5 years (to the nearest whole
1. 1 answer
2. 646 views
If F(x)=x^2-x+1 and g(x)=-3x+6, what is the product of f(-1) and g(3)?Help please.
1. 2 answers
2. 302 views
how do you find the derivative of f(x)=2x/(x^2+x+1)^1/2 HELP A.S.A.P.?
1. 1 answer
2. 281 views
(x-4)^3/2 = -6In the end I got .69, but that's wrong. Please help. I don't really understand. My work. x-4 = -6^2/3 x=4-6^2/3
1. 1 answer
2. 473 views
A stuntman sitting on a tree limb wishes to drop vertically onto a horse galloping under the tree. The constant speed of the
1. 1 answer
2. 2,141 views
Solve each equation by graphing. Where necessary, round to the nearest hundredth-x^3+2x^2+1=0
1. 1 answer
2. 878 views
Solve each equation by graphing. Where necessary, round to the nearest hundredthx^4+2x-3= 0
1. 0 answers
2. 432 views
Solve each equation by graphing. Where necessary, round to the nearest hundredth-x^3+3x+4=0
1. 1 answer
2. 496 views
Factor x^2-1=0How do you factor when there is no B in this equation?
1. 4 answers
2. 363 views
It says to complete the square for x^2-4x-2=0How do you do this? Please help.
1. 1 answer
2. 352 views
In order to predict the percentage of males and females three assumptions must be considered: 1. The X carrying sperm and Y
1. 1 answer
2. 496 views
Sam drives his car 23,040 miles per year. Find this rate in the number of miles driven per month, to the nearest mile
1. 2 answers
2. 814 views
Suppose f(pi/3) = 3 and f '(pi/3) = −7,and let g(x) = f(x) sin x and h(x) = (cos x)/f(x). Find the following. a. g'(pi/3) b.
1. 2 answers
2. 11,107 views
How do I rond three decimal places?
1. 1 answer
2. 338 views
Use slopes and intercepts to determine if the following system is consistent, inconsistent, or dependent.-4x - 5y = 20 -12x -
1. 1 answer
2. 421 views
x/4 - y/2 = -11/4x/4 + y/2 = 1/4 solve the system
1. 1 answer
2. 300 views
The number N of US cellular phone subscribers (in millions) is shown in the table. (Midyear estimates are given.)t 1996 1998
1. 2 answers
2. 6,214 views
An employee has two hourly wage options for positions in a large corporation. One position pays $11.00 plus additional unit rate
1. 2 answers
2. 742 views
my equation is m 2=c. I want to use my equation to find the cost of a 60-mile trip.
1. 1 answer
2. 291 views
What is the standard form of the equation of the line passing through the point (-1,-2) and perpendicular to the line y= - 2/3x
1. 2 answers
2. 513 views
Solve for x using the laws of logarithms.ln(ln x)= 1
1. 1 answer
2. 537 views
Simplify the expression. Write the answer without negative exponents.(4a^3b^3)(4ab^2)^2
1. 1 answer
2. 712 views
Given the Empirical formula: C6H7N, and a molecular mass of 372.52 g/mol, How do I find the MOLECULAR formula for the compound?
1. 1 answer
2. 1,746 views
Use the distance formula to determine whether the points lie on the same line.(0,4),(7,-6),(-5,11). I know the distance formula,
1. 1 answer
2. 2,341 views
Write the list words that contain the same o sounds as the examples given. Use the order of the o sounds as shown in the
1. 3 answers
2. 561 views
In an election between two candidates, 530 votes were cast. If the winner received received 150 more votes than the loser, how
1. 2 answers
2. 726 views

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