Answers created by Trevor Ryan.

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• How do you evaluate #1+ 8\div 4#?
  
• How much work would it take to push a # 9 kg # weight up a # 5 m # plane that is at an incline of # pi / 4 #?
  
• How do you differentiate #cos(-x)#?
  
• How do you simplify #sqrt(tan^2x-2tanxsinx+sin^2x)#?
  
• How do you simplify #(9+8i)+(8-9i)#?
  
• How do you solve #2e^x-1=11#?
  
• How do you solve #|10- 8x | < - 13#?
  
• How do you integrate #int 1 / ((x+5)^2 (x-1) ) # using partial fractions?
  
• If #y# varies directly with #x# and #y=20# when #k=4#, what is the value of #x#?
  
• How do you evaluate #sum_(n=2)^6(2n-1)#?
  
• How do you convert 3.2 moles of Ca to atoms of Ca?
  
• In which organelle does cellular respiration take place?
  
• How do you solve #2sin^2x+3sinx+1=0# and find all solutions in the interval #[0,2pi)#?
  
• Why do herbivores have prominent incisors?
  
• An object with a mass of #150 g# is dropped into #500 mL# of water at #0^@C#. If the object cools by #60 ^@C# and the water warms by #9 ^@C#, what is the specific heat of the material that the object is made of?
  
• How do you condense #ln(1+x^9)+1/2(ln(x)-ln(sin(x) #?
  
• Question #ac059
  
• How do you solve #-5y-7<=3#?
  
• What is the atomic mass of K?
  
• How do you evaluate the definite integral #int 2/(x+1)^2# from #[0,3]#?
  
• How do you differentiate #f(x)=sec^2(e^(x) ) # using the chain rule?
  
• Why are nucleic acids important?
  
• Oil spilling from a ruptured tanker spreads in a circle on the surface of the ocean. The area of the spill increases at a rate of 9π m²/min. How fast is the radius of the spill increasing when the radius is 10 m?
  
• If a quadratic equation has 2 identical rational roots, how many times will its graph intersect the #x#-axis?
  
• What are the 5 types of white blood cells?
  
• What is the angle between the vectors A = 2.00i + 6.00j, and B=2.00i - 3.00j?
  
• How do you solve #Ax=B# given #A=((2, 0, 0), (-1, 2, 0), (-2, 4, 1))# and #B=((4), (10), (11))#?
  
• An electric toy car with a mass of #3 kg# is powered by a motor with a voltage of #4 V# and a current supply of #2 A#. How long will it take for the toy car to accelerate from rest to #14/3 m/s#?
  
• How do you simplify #-(3-x)#?
  
• Application of mechanics - What minimum linear velocity is required by a racing driver to round a bend of radius 100m, inclined at angle 85 degrees to the horizontal, if the coefficient of kinetic friction between his tyres and the surface is 0,5? See ske
  
• What is the range of the function #y = (2x-1)^3 - 3#?
  
• How do you implicitly differentiate #ln(x-y)=x-y #?
  
• What is the derivative of #ln^2 (x)#?
  
• What is the norm or #<-7 ,6,-1 >#?
  
• How do you differentiate # g(x) =4/x-cscx #?
  
• A 16 N wooden box is on the floor. How much force does it take to make the box slide if the coefficient of static friction #mu_s = 0.14#?
  
• What is the limit of #(2+3sinx)/(x^3 +1)# as x approaches 0?
  
• How do you differentiate #f(x)=e^tan(1-x^2) # using the chain rule?
  
• What is the 5th term of #(x+2)^9#?
  
• How do you integrate #2/[x^3-x^2 ]# using partial fractions?
  
• The gas inside of a container exerts #18 Pa# of pressure and is at a temperature of #60 ^o K#. If the pressure in the container changes to #42 Pa# with no change in the container's volume, what is the new temperature of the gas?
  
• How do you solve #Sin 3 theta = sin theta #?
  
• What is the vertex form of #y= x^2-x-20 #?
  
• How do you simplify #2(x+3)#?
  
• How do you prove #cos 3 theta = 4 cos^3 theta - 3 cos theta#?
  
• How would I use the dot product of #u# if #u##=##5i##+##2j#?
  
• How do you find the sum of the infinite geometric series #4(1/3)^(n - 1)#?
  
• An object, previously at rest, slides #5 m# down a ramp, with an incline of #(3pi)/8 #, and then slides horizontally on the floor for another #2 m#. If the ramp and floor are made of the same material, what is the material's kinetic friction coefficient?
  
• If you add 163.11 g of ice at 0.0 °C to 0.087 L of water at 39.9 °C and allow the water to cool to 0.0 °C, how many grams of ice will remain?
  
• What is .00110 cm converted to mm?
  
• Given #f(x)=x^2+1# with domain #{2,-1,0, 1,3}# what is the range?
  
• The gas inside of a container exerts #25 Pa# of pressure and is at a temperature of #430 ^o K#. If the temperature of the gas changes to #150 ^oC# with no change in the container's volume, what is the new pressure of the gas?
  
• If the length of a #27 cm# spring increases to #65 cm# when a #4 kg# weight is hanging from it, what is the spring's constant?
  
• Vector A has a magnitude of 10 and points in the positive x-direction. Vector B has a magnitude of 15 and make an angle of 34 degrees with the positive x-axis. What is the magnitude of A - B?
  
• How do you simplify #(2-5i) - (7-2i)#?
  
• What is the derivative of #x + 1/x#?
  
• How do you evaluate #sec(18pi)#?
  
• What is the net area between #f(x) = 3x^2-x+2# and the x-axis over #x in [1, 2 ]#?
  
• The electron configuration #1s^2 2s^2 2p^6 3s^2 3p^6# represents which noble gas?
  
• What types of waves are in the electromagnetic spectrum?
  
• What causes electromagnetic waves?
  
• How do you write the mathematical expression for "50 divided by a number h"?
  
• What is #f(x) = int x^3-2x dx# if #f(-2)=-1 #?
  
• How do you evaluate #4 - 6|c|# for #c=2#?
  
• How does the frequency of light change as wavelength increases?
  
• How do you simplify #(-1/3x^4)^2#?
  
• A charge of #5 C# passes through a circuit every #4 s#. If the circuit can generate #48 W# of power, what is the circuit's resistance?
  
• What is the measure of the angle between #v = <-2, 7># and #w = <1, -3>#?
  
• How do you solve #3/4 -: 5 1/5#?
  
• Is a triangle with side lengths 20, 24, and 36 a right triangle?
  
• How do you find the inverse of #A=##((1, 2), (1, 3))#?
  
• Question #d4347
  
• How do you simplify the expression #8a^5(a^-2)^6 div (a^-1)^-3#?
  
• What is the instantaneous rate of change of #f(x)=sqrt(3x^2+4x+2) # at #x=4 #?
  
• If 29.4 grams of hydrogen and 3701.3 grams of iodine combine to form hydrogen iodide, how many grams of hydrogen iodide must form?
  
• Question #3171d
  
• How do you find the derivative of #f(x) = x + x^(1/2)#?
  
• What is #4/10 -: 3/5#?
  
• How do I find the derivative of #g(x)=ln(ln(ln(f(x))))#?
  
• What are the factors of 34?
  
• How do you find the limit of #(x^(4) - 2x + 3)/(4 - 5 x^(3)) # as x approaches #oo#?
  
• An atom contains 70 protons, 70 electrons, and 99 neutrons. What is the mass number?
  
• How do you solve #3log_2(3x-5) - 7 = 2#?
  
• What causes light to refract?
  
• How do you find the exact value of #tan ((pi)/2)#?
  
• How do you find the equation of the tangent line to the curve # f(x) = ln(x)# at x = 4?
  
• How much work does it take to raise a #7 kg # weight #9 m #?
  
• Is 0 a rational or irrational number?
  
• What is 5#1/4# #*# 2#2/3#?
  
• A star sends out a radio wave into space that has a wavelength of 5.5 meters. What is the frequency of this radio wave?
  
• How do you solve #13n-n^2=0#?
  
• What is #36/7 -: 9#?
  
• What body system do the liver, the islets of langerhans and the spleen fall under?
  
• How do you find #abs( -3+4i)#?
  
• How do you solve for Kc in #7.2647 = -ln(Kc) #?
  
• What is the derivative of #sin(x^2 -2)^3#?
  
• Question #55e72
  
• Can stressors impact your thoughts, emotions, feelings, and physical responsiveness? If yes, how?
  
• Question #215f0
  
• How do you determine if #f(x) = 2x^2 - 7# is an even or odd function?
  
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