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The certain type of light filter decreases intensity of light going through it by 30%. By what percent is intensity of light decreased by two such filters, placed one on top of other?
s=t^2-6t provides distance s in feet an object is above ground t seconds after being thrown up. Determine number of t seconds it takes object to reach height of 40 feet.
If the snowball with radius 2 in. Rolls down the hill. Its volume increases at the rate of 5% per second, find the equation for volume of snowball as the function of time in seconds?
Determine the expression for x involving the inverse function which will yield the value for given range (y) value for the given equation. y = - sin x/3
The normal healing of wounds can be modeled by the exponential function. If represents original area of wound and if A equals area of wound, then formula.
The commercial jet airplane climbs at takeoff with slope m=4/9. How far in horizontal direction will airplane fly to reach the altitude of 20,000 ft above takeoff point?
The rectangle is bounded by x-axis and semicircle y=squareroot[36-xsquare]. Write area of rectangle as the function of x and find the domain of function.
If the car is traveling 50 mph downhill, then it's breaking distance on wet pavement is provided by D(x) = 2500/30(0.3 + x). Graph of D has the vertical asymptote at x= -0.3. Write physical signific
The office has 27 employees. If there are seven more women than men in office, how many employees are women?
Of 300 clock radios with digital tuners and/or CD players sold recently in the department store, 210 had digital tuners and 270 had CD players. How many radios had both digital tuners and CD players
120 members indicated that they plan to attend next Winter Olympic Games, and 80 members indicated that they plan to attend both games. How many members of club plan to attend At least one of two ga
To help plan number of meals to be prepared in the college cafeteria, the survey was performed, and following data were obtained.
If the car is traveling 50 mph downhill, it's breaking distance on wet pavement is given by D(x) = 2500/30(0.3 + x). Evaluate grade related with the braking distance of 350 feet.
Two cities Cincinnati, OH and Atlanta, GA are situated at same longitude. Latitude reading of Cincinnati is 39.13 ° N, while Atlanta is situated at latitude 33.75° N. How far apart are the t
Determine whether situation comprises binomial probability and describe the decision: Color of 2 cards whihc are drawn from the standard deck of 52 cards.
Given the rational function: f(x)=x^2 +10x +6/x+9 state the domain. Find the vertical and horizontal asymptotes, if any.
Determine x- and y-intercepts. Find end behavior. Determine power function that graph of f resembles for large values of |x|. Compute maximum number of turning points.
Determine equation of the line which is perpendicular to given line through given point. Write answers in slope-intercept form.
The wooden artifact from the ancient tomb has 20 percent of carbon-14 which is present in living trees. How long ago was artifact constructed? Half-life of carbon-14 is 5730 years.
Find how many real zeros polynomial Q(x) = P(x)+c has for different constants c. Adding c is going to shift graph of P(x) up or down depending on value of c.
If respective angles of depression are angle 1 = 15 degrees and angle 2 = 49 degrees, find distance (in miles) between two towns.
Determine angle of depression from top of the lighthouse 258 feet above water level to water line of the ship 3 miles offshore.
After three days sample of radon-222 has decayed to 58% of original amount. Determine half-life of radon-222? How many days?
Find the length of edge of the cube if its volume could be doubled by the increase of six centimeters in one edge, increase of 12 centimeters in the second edge.
Though, for each $30 increase in rent on unit turns out to be vacant. Every occupied unit needs the average of $18 in repairs. What rent must be charged to get maximum profit.