Find the ages of John and Mary if four times John's age equals three times Mary's age, and Mary is ten years older than John.
Which is greater 5.71 or 5.2453? Explain
What multiplication fact can be found by using arrays for 2x9 and 5x9?
ph of 10 grams of sodium acetate and 100 mL of .5M acetic acid
John took a sample of water from pond behind house. On first day, he found 1 bacteria in the sample. Each day it tripled. Show growth chart.
Given the function f(x)=x^4−6x^2 a.) Find all values of x where local extrema points occur b.)find all values of x where inflection points occur c.) find all local extrema of f(x) d.) find all global extrema of f(x) over the closed interval [-2,3]
what is the heat capacity of iron when a 15.75-g piece of iron absorbs 1086.75 joules of heat energy, and it's temperature changes from 25 degrees celcius to 175 degrees celcius
Derive the central difference approximation for f''(x) accurate to O(h^4) by applying Richardson extrapolation to the central difference approximation of O(h^2). where f'' = 2nd derivative of x
Two radar stations A and B, are separated by horizontal distance of (a=500 metres), they both track the position of a plane C by recording angles (alpha), and (beta) at 1 second intervals. time (sec) 9 10 11 the angle A(alpha) 54.80 54.06 53.34 the angle B (beta) 65.59 64.59 6...
three cards are randomly drawn without replacement from a standard deck of 52 cards. What is the probability of drawing an ace on the third draw?
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