Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
Explain the observations. Graph function, along with line equations of evaluated tangents through points (c1,f(c1)) and (c2,f(c2)).
The machine should extert 200 lbs force to prevent the boulder from rolling down the hill. a. If boulder weighs 500 lbs, find hill's incline angle? b. If boulder weighs 1000 lbs, find hill's incline
If elliptical pattern of the whispering gallery is 92 feet long by 58 feet wide, how far from whisperer at 1 focus is listener at other focus?
Dish antennas have the parabolic cross-section. This concentrates signals onto the sensor at focus of parabola. The dish antenna is 1 m wide and 20 cm deep. How far from bottom of the dish must sens
Find equation of the parabola which estimates shape of Gateway arch? Suppose that origin of coordinate system is at ground level midway between legs of arch. Write equation in standard form.
Stock market tripled in 10 years. a) Find average change per year over those 10 years b) In first five years it went up 90% (not 90% per year-90% total). How much it went up in second five years?
The airplane is sighted at same time by two ground observers who are 2 miles apart and in line with airplane. They report angles of elevation as 10 degrees and 22 degrees. Compute how high is airpl
An angle at one corner of the triangular plot of ground is 73.7 degrees and sides which meet at the corner are 175ft and 150ft long. Determine length of third side.
From the point on level ground 135ft from base tower, angle of elevation of top of tower is 57.3 degrees. Determine height of tower rounded to nearest foot.
In the equation, B(t) represents magnitude of brightness, and t is time (in days). Assume we start at t = 0 days. During first 63 days, when will star's magnitude of brightness be 13?
In this equation, d(t) is distance of plane to airport (in miles), and t is time (in minutes) after plane enters holding pattern. During first 11 minutes after plane enters holding pattern, when wil
The farmer with 1,000 meters of fencing wishes to enclose the rectangular plot which borders on the straight highway. If farmer doesn't fence side along highway, find largest area which can be encl
Determine exponential function of form y=ae^kx which goes through points (0,6) and (2,8). Illustrate all steps and use four decimal places. Write complete answer.
Rectangular coordinates of the point are ((-2*sqr3) , 2) Determine polar coordinates (r, angle) of the point with angle expressed in radians. Let r>0 and 0 less than or equal angle < 2pi Pola
The power p in watts made by the windmill is proportional to cube of wind speed v in mph if the wind of 10 mph generates 15 watts of power, how much power is produced by winds of 20,40,80 mph make t
State total time needed to complete 70 mi trip (bike and car)as the function of rate of x of bike. Josh rode his bike 17 mi from his home to Columbus, and then traveled 53 mi by car from Columbus to D
Mean score for the random sample of 100 seventh-graders is 75.7 with the standard deviation of 15.2. What criterion would be utilized for rejecting null hypothesis, provided claim that µ >
The baseball player makes the running slide onto home plate at the speed of 4.5m/s. If he has the mass of 65.0kg and coefficient of kinetic friction of 0.60, how far he slides?
After t seconds, ball's distance, d, in inches from its rest position is provided by equation d = -4 cos (pi/3 * t) What are all values of t for which ball is 2 inches above rest position.
If thermostat reads 15 degrees celsius after four minutes, what will it be after being in room for 6 minutes? and for 11 minutes?
The track and field playing area is in shape of the rectangle with semicircles at each end. Inside perimeter (rectangle part) of track is to be 1200 meters. What must dimensions of rectangle be so
Colony starts with 5 bacteria, but 5 hours after starting of experiment, it has grown to 230 bacteria. Write the formula for number of bacteria as the function of time.
In Detroit, Michigan, number of hours of sunlight on summer solstice is 13.65 and number of hours of sunlight on winter solstice is 9.067.
For the person at rest, velocity v (in liters per second) of airflow during the respiratory cycle. Determine time for one full respiratory cycle. B) Compute number of cycles per minute.
Graph f(x)= 3x^2+9x+2 to find out whether graph opens up or down? Determining the vertex, axis of symmetry, x and y intercepts, domain, range and whether function is rising or reducing?