Answers edited by David B.

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• How do you simplify #-5^-2#?
  
• 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?
  
• 7.4 kg is how many grams?
  
• How do you find the inverse of #A=##((1, 0, 3), (1, 4, 2)) #?
  
• What are the variance and standard deviation of {2,9,3,2,7,7,12}?
  
• How do you convert 0.012 to a fraction?
  
• How do you solve #Ln (y) – Ln (y-4) = Ln (2) #?
  
• How do you find the exact relative maximum and minimum of the polynomial function of #f(x)= 2x^3-3x^2-12x-1#?
  
• How do you solve #e^[2 ln x – ln (x^2 + x - 3)] = 1#?
  
• The air pressure inside a passenger tire is 228 kPa. What is this pressure in atmospheres?
  
• What are the most commonly used optical transmitters?
  
• What is #sqrt(7 + sqrt(7 - sqrt (7 + sqrt (7 - sqrt(7 + ...... ∞#?
  
• 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 does Einstein's Theory of Relativity predict the existence of Gravitational waves?
  
• How do you long divide #3x^3+4x^2-7x+1 div 3x-2#?
  
• How do you divide: #(x^3 - 6x^2 + 12x - 8) ÷ (x - 2)#?
  
• How do you graph #y=abs( x-1)#?
  
• The mass of a killer whale is 950,000,000 milligrams. What is its mass, in kilograms, expressed in scientific notation?
  
• How do you long divide #(x^3+2x^2-3x+4)/(x-2)#?
  
• What is the standard deviation of the data set #11, 5, 12, 8, 5, 12, 10# rounded to the nearest tenth?
  
• 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?
  
• What are the mean and standard deviation of a binomial probability distribution with #n=144 # and #p=11/13 #?
  
• How do you simplify #-5^-2#?
  
• Question #490a9
  
• What is the arclength of #f(x)=x/e^(3x)# on #x in [1,2]#?
  
• How do you divide #(-2-5i)/(3i)#?
  
• How do you find the derivative of #1/(x+1)^2 #?
  
• How do you solve the quadratic using the quadratic formula given #9x^2-11=6x#?
  
• Question #d0f63
  
• What is an optical transmitter?
  
• How do you solve #2^x = 3#?
  
• What causes a flight to fly in air?
  
• How do you find the slope and intercept of #x + 2y=3#?
  
• How do you find the zeros, real and imaginary, of #y=3x^2+17x-3# using the quadratic formula?
  
• How do you write 4 1/5 as a percent?
  
• How do you solve #y = 3x + 12# and #y = x^2 + 2x - 18#?
  
• How do you convert 0.18 (18 repeating) to a fraction?
  
• 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?
  
• 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 simplify #(1.5)!#?
  
• How do you find the instantaneous rate of change for #f(x) = 3/x # for x=2?
  
• How does earth's orbit affect climate?
  
• How do you evaluate #cos ((15pi)/4)#?
  
• How do you use synthetic division to divide #2x^3-3x^2-5x-12div x-3#?
  
• What causes the null hypothesis to be rejected in an F-test?
  
• How do you solve #x^2+2x-48=0#?
  
• 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?
  
• 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?
  
• How do you graph the inequality #y < x^2#?
  
• How do you simplify # (2+3i) ^2#?
  
• What causes reflection?
  
• How do you factor #5x^3-45x#?
  
• Is the angle of the axis that the earth rotates on created by or affected by the sun?
  
• How do you long divide # (x^3 - 3x^2 + x + 2) / (x + 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 #92420
  
• 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?
  
• How many years it will take to double your money if your beginning balance is $1,000.00 and earns 10% interest compounded quarterly?
  
• How do you long divide #(x^2+4x-39)/(x+8)#?
  
• How can you determine if a difference between the means of two samples is significant?
  
• How do you solve #63-x=2x+3#?
  
• Question #13df4
  
• How do you solve #log_7 x= -1#?
  
• How do you write an equation in slope intercept form of a line containing the coordinates (10,-12) and (13,18)?
  
• 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 is the difference between a definite and indefinite integral?
  
• Question #30ee9
  
• How do you balance the chemical equation: #Fe+H_2O = Fe_3O_4+H_2#?
  
• 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?
  
• What can a chi-squared distribution be used to describe?
  
• What is the polar form of #( 11,-6 )#?
  
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