Answers edited by David B.

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• What causes the null hypothesis to be rejected in an F-test?
  
• How do you long divide #3x^3+4x^2-7x+1 div 3x-2#?
  
• A plant food is to be made from 3 chemicals. The mix must include 60% of the first and second chemicals. The second and third chemicals must be in the ratio of 4:3 by weight. How much of each chemical is needed to make 750kg of the plant food?
  
• Question #d0f63
  
• How do you solve #e^[2 ln x – ln (x^2 + x - 3)] = 1#?
  
• What is an optical transmitter?
  
• A student does 60 joules of work pushing a 3.0 kilogram box up the length of a ramp that is 500 centimeters long. What is the magnitude of the force applied to the box to this work?
  
• What is #sqrt(7 + sqrt(7 - sqrt (7 + sqrt (7 - sqrt(7 + ...... ∞#?
  
• A container with a volume of #6 L# contains a gas with a temperature of #280^o K#. If the temperature of the gas changes to #320 ^o K# without any change in pressure, what must the container's new volume be?
  
• Is the angle of the axis that the earth rotates on created by or affected by the sun?
  
• How do you convert 0.18 (18 repeating) to a fraction?
  
• Question #13df4
  
• A model train, with a mass of #15 kg#, is moving on a circular track with a radius of #6 m#. If the train's kinetic energy changes from #81 j# to #27 j#, by how much will the centripetal force applied by the tracks change by?
  
• Question #92420
  
• How do you solve #63-x=2x+3#?
  
• How do you solve the system of equations by graphing and then classify the system as consistent or inconsistent #y = 3x + 2# and #3y = 9x + 6#?
  
• What causes reflection?
  
• How do you long divide #(x^3+2x^2-3x+4)/(x-2)#?
  
• The position of an object moving along a line is given by #p(t) = 3t - cos(( pi )/3t) + 2 #. What is the speed of the object at #t = 2 #?
  
• How can you determine if a difference between the means of two samples is significant?
  
• How do you simplify #(1.5)!#?
  
• How do you write an equation in slope intercept form of a line containing the coordinates (10,-12) and (13,18)?
  
• Question #490a9
  
• A model train, with a mass of #2 kg#, is moving on a circular track with a radius of #6 m#. If the train's kinetic energy changes from #2 j# to #96 j#, by how much will the centripetal force applied by the tracks change by?
  
• How do you use synthetic division to divide #2x^3-3x^2-5x-12div x-3#?
  
• Question #30ee9
  
• How do you write 4 1/5 as a percent?
  
• How do you find the zeros, real and imaginary, of #y=3x^2+17x-3# using the quadratic formula?
  
• How does earth's orbit affect climate?
  
• What is the arclength of #f(x)=x/e^(3x)# on #x in [1,2]#?
  
• How do you solve #Ln (y) – Ln (y-4) = Ln (2) #?
  
• How do you solve the quadratic using the quadratic formula given #9x^2-11=6x#?
  
• 7.4 kg is how many grams?
  
• What are the mean and standard deviation of a binomial probability distribution with #n=144 # and #p=11/13 #?
  
• How do you solve #y = 3x + 12# and #y = x^2 + 2x - 18#?
  
• How do you divide #(-2-5i)/(3i)#?
  
• How do you find the instantaneous rate of change for #f(x) = 3/x # for x=2?
  
• How do you simplify #-5^-2#?
  
• How do you solve #log_7 x= -1#?
  
• What is the standard deviation of the data set #11, 5, 12, 8, 5, 12, 10# rounded to the nearest tenth?
  
• How do you find the slope and intercept of #x + 2y=3#?
  
• How do you simplify #-5^-2#?
  
• How do you balance the chemical equation: #Fe+H_2O = Fe_3O_4+H_2#?
  
• What are the variance and standard deviation of {2,9,3,2,7,7,12}?
  
• How many years it will take to double your money if your beginning balance is $1,000.00 and earns 10% interest compounded quarterly?
  
• In a basket of rambutans and bananas ,70% of rambutans and 60% of the bananas are ripe.If 40% of the fruits in the basket re rambutans.find the probability of the fruits which are ripe.Find probability of rambutans given the fruits are ripe?
  
• How does Einstein's Theory of Relativity predict the existence of Gravitational waves?
  
• How do you divide: #(x^3 - 6x^2 + 12x - 8) ÷ (x - 2)#?
  
• How do you solve #2^x = 3#?
  
• The mass of a killer whale is 950,000,000 milligrams. What is its mass, in kilograms, expressed in scientific notation?
  
• How do you factor #5x^3-45x#?
  
• What are the most commonly used optical transmitters?
  
• How do you evaluate #cos ((15pi)/4)#?
  
• What is the difference between a definite and indefinite integral?
  
• How do you find the exact relative maximum and minimum of the polynomial function of #f(x)= 2x^3-3x^2-12x-1#?
  
• What is the polar form of #( 11,-6 )#?
  
• The air pressure inside a passenger tire is 228 kPa. What is this pressure in atmospheres?
  
• How do you simplify # (2+3i) ^2#?
  
• How do you find the inverse of #A=##((1, 0, 3), (1, 4, 2)) #?
  
• What causes a flight to fly in air?
  
• The gas inside of a container exerts #12 Pa# of pressure and is at a temperature of #120 ^o C#. If the temperature of the gas changes to #540 ^oK# with no change in the container's volume, what is the new pressure of the gas?
  
• How do you long divide #(x^2+4x-39)/(x+8)#?
  
• How do you graph the inequality #y < x^2#?
  
• How do you graph #y=abs( x-1)#?
  
• How do you long divide # (x^3 - 3x^2 + x + 2) / (x + 2)#?
  
• How do you solve #x^2+2x-48=0#?
  
• How do you find the derivative of #1/(x+1)^2 #?
  
• What can a chi-squared distribution be used to describe?
  
• A snowball is thrown straight upward from the top of a 200 meter tall building with a velocity of 30 m/s. How long does it take to reach its highest point?
  
• The grade point averages for 10 randomly selected junior college students are 2.0, 3.2, 1.8, 2.9, 0.9, 4.0, 3.3, 2.9, 3.6, 0.8. Assume the grade point averages are normally distributed. What is the 98% confidence interval for the true mean?
  
• How do you convert 0.012 to a fraction?
  
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