Answers created by James W.

• Back to user's profile
• What are the asymptotes of #f(x) = tan(2x)#?
  
• What is the domain and range of #y=x^2 - 4x + 1#?
  
• How do you solve #x^2+10x=-21#?
  
• How do you divide #y^4-8y^3+10y^2+2y+4# by y-2 and is it a factor of the polynomial?
  
• How do you simplify #-5sqrt18#?
  
• A worker’s salary is reduced by p%. By what percent would the salary have to be raised to bring it back to its original amount?
  
• How do you factor #4x^2+18#?
  
• How do you solve y=3x-4 and 2x-3y=-9?
  
• When simplifying a fraction do you find the highest number that goes into both numerator/denominator or the lowest number?
  
• What is a radioactive isotope? Why are they radioactive?
  
• HELLO ....How many questions did the student answer in total?
  
• How much water is needed to prepare a .50 molal solution using 0.50 moles of sodium chloride?
  
• How do you solve #3/(2x)-9/2=6x#?
  
• Consider 3 equal circles of radius r within a given circle of radius R each to touch the other two and the given circle as shown in figure, then the area of shaded region is equal to ?
  
• Explain why nucleus is the brain of cells ?
  
• How do you approximate the height of the screen to the nearest tenth?
  
• An isosceles triangle has sides A, B, and C with sides B and C being equal in length. If side A goes from #(1 ,4 )# to #(5 ,8 )# and the triangle's area is #27 #, what are the possible coordinates of the triangle's third corner?
  
• When Jane's wading pool was new, it could be filled in 6 minutes, with water from a hose. Now that the pool has several leaks, it takes only 8 minutes, for all of the water to leak out of the full pool. How long does it take to fill the leaky pool?
  
• If a ferry departs for New York and Big Ben chimes at the same time at 12:30 PM, how can you determine when both events will occur again at the same time?
  
• What is the #sqrt336# in simplest radical form?
  
• How do you find the axis of symmetry, graph and find the maximum or minimum value of the function #y = -x^2 + 2x#?
  
• How much energy is needed to heat up 10 litres of water for a bath, if the temperature of cold water is 10 degrees and the bath temperature is 38 degrees?
  
• What is the slope-intercept form (y=mx+b) of x-y=5?
  
• What does the following expression evaluate to?
  
• A convex quadrilateral has exterior angle measures, one at each vertex, of c+49°, 2c, 128°, and 2c+13°. What is the value of c?
  
• 3. Below is the decay curve for bismuth-210. What is the half-life for the radioisotope? What percent of the isotope remains after 20 days? How many half-life periods have passed after 25 days? How many days would pass while 32 grams decayed to 8 grams?
  
• Differentiate #cos(x^2+1)# using first principle of derivative?
  
• Question #f46fd
  
• What is the magnitude of the gravitational force on Mars, with a mass of #6.34 \times 10^ 23# and a radius of #3.43 \times 10^6#m?
  
• A charge of #8 C# is passing through points A and B on a circuit. If the charge's electric potential changes from #36 J# to #6 J#, what is the voltage between points A and B?
  
• Question #1fd4c
  
• How do you write an equation for the alpha decay of Actinium-218?
  
• How many grams of CaCl2 would you use to make 500 ml of a 6mM calcium salt solution? CaCl2=110
  
• How do you graph the parabola #y= - x^2 - 6x - 8# using vertex, intercepts and additional points?
  
• Find the maximum height that the Pohutukawa tree is expected to reach in cm?
  
• Roliver is three times as old as Cerise. Three years ago, the sum of their ages was sixty-six. Find their present age?
  
• Bismuth-209 (209Bi) was bombarded with another element to produce meitnerium-266 (266Mt) and one neutron. What was the bombarding particle? Show your balanced nuclear equation as work?
  
• Physics help, I'm not sure what this question is asking?
  
• How do you graph the function #f(x)=(x-3)^3+4# and its inverse?
  
• How to answer these questions ?
  
• The bottom of a ladder is placed 4 feet from the side of a building. The top of the ladder must be 13 feet off the ground. What is the shortest ladder that will do the job? The base of the building and the ground form a right angle.
  
• Question #f5ec7
  
• How do you divide #(-x^4-4x^3+2x^2-7x-7)/(x-2) #?
  
• How do you determine the equation of the line that passes through the points (-5,7) and (6,15)?
  
• How do you write #y=2/3x^2-4/5x# in vertex form?
  
• Six apples cost 80 cents. At that rate, what is the cost of 15 apples?
  
• How do you solve #7x + 15= - 8( - 7x - 8)#?
  
• How do you solve #\frac { z + 29} { 2} = - 8#?
  
• Question #35aac
  
• How to work out #/17^2-15^2#?
  
• Question #67ffa
  
• What is the domain of the function g(x) = 3log2(x−1)+4 ?
  
• How do you tell wether the equation #y = 2x + 1# represents direct variation and if so, how do you identify the constant of variation?
  
• Question #9c03c
  
• How do you find the domain and range of #f(x) = 2 / sqrt(3x-2)#?
  
• How do you solve the equation by graphing #2x^2 - 3x + 4 = 0#?
  
• Please solve this problem for me thanks?
  
• Given the function: f (x)= -3(x+2)² + 5, how do you rewrite in standard form?
  
• Question #74e81
  
• How do you evaluate #\sqrt { \frac { 27} { 9} } + 5#?
  
• How do you simplify #2x + 10x y + 10x ^ { 2} - 18x y #?
  
• What is the vertex form of #y= 6x^2-9x+3 #?
  
• 2 men and 3 women take 16 days to complete a task. How long would it take for 4 men and 6 woman?
  
• A fighter jet is flying in a tight circle with a radius of 250m. It makes one complete turn in 20 seconds. How fast is the plane flying?
  
• Question #5c7c6
  
• Question #c7208
  
• Question #301e8
  
• How do you write the standard form of a line given slope of 43− and passes through the point (4, 5)?
  
• Question #871eb