Questions asked by Cassidy R.
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Which has a greater volume: 1000g of water or 1000g of ethanol? i found it and put in in sig figs (because we're always supposed to) and the volumes are both 1000mL. should i say they're equal, or base it off the actual values w/o considering sig figs?
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What transformations are applied to y = 4 - | x + 2 | ?
(parent function: f(x) = | x | )
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What is the energy of an element whose emission spectrum has a wavelength of 450 nm?
i don't need an explanation; i just want to see if my answer's correct. ( 4.4 x 10^-19 J)?
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Paper airplane follows the path y=-2x^2+20x+1 where y represents the height of the paper airplane in feet and x represents the seconds it has traveled. what is the time before the airplane will reach 15 feet?
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The equation x^2+y^2=25 defines a circle at the origin and radius of 5. The line y = x + 1 passes through the circle. What are the point(s) at which the line intersects the circle?
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Kendall can paint a whole set in 10 hours. when she works together with dan, they can paint the set in 6 hours. how long would it take dan to paint the set alone?
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The reciprocal of half a number increased by half the reciprocal of the number is 1/2. what is the number?
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You have found a fossilized leg bone of some unknown mammal. Based on the size of the bone, you determine that it should have contained about 100 g of carbon-14 when the animal was alive. The bone now contains 12.5 g of carbon-14. How old is the bone?
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What are the four integral values of x for which x/(x-2) has an integral value?
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Sara agrees to buy a car for a down payment of $3000 and payments of $315 per month for 4 years. If the interest rate is 4.25% per year, compounded monthly, what is the actual purchase price of the car?
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A coin is dropped from a height of 750 feet. The height, *s* (ft), at time *t* (sec), is given by s=-16t^2+750. How long does it take for the coin to hit the ground?
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Let f(x)=(5/2)sqrt(x). The rate of change of f at x=c is twice its rate of change at x=3. What is the value of c?
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Find the point(s) (if any) of horizontal tangent lines for the equation x^2+xy+y^2=6. If none exist, why?
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Factor 36x^3+12x^2-72x-24 ?
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A differentiable function f has only one critical number: x=-3. Identify the relative extrema of f at (-3, f(-3)) if f'(-4)=(1/2) and f'(-2)=-1?
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What are all the points of inflection of f(x)=(1/12)x^4-2x^2+15?
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A right cylindrical water tank with a diameter of 3 feet and a height of 6 feet is being drained. At what rate is the volume of the water in the tank changing when the water level of the tank is dropping at a rate of 4 inches per minute?
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The function f(t)=5(4)^t represents the number of frogs in a pond after t years. What is the yearly percent change? the approximate monthly percent change?
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How do you evaluate intcos(x)/(9+sin^2x)dx?
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How do you solve the separable differential equation dy/dx = e^(x-y)?
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How do you solve the separable differential equation dy/dx=(cosx)e^(y-sinx)?
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How do you solve the separable differential equation dy/dx=(cosx)e^(y+sinx)?
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What are all the values for k for which int_2^kx^5dx=0?
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For what value of x is the slope of the tangent line to y=x^5 -x^2 +sinx undefined?
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What is the general solution of dy/dx = ysinx?
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For what value of
x
is the slope of the tangent line to
y=x^7 + (3/x)
undefined?
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What is the limit as x approaches 1 of 5/((x-1)^2)?
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Related rates problem?