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When tuning the piano, technician strikes the tuning fork for A above middle C and sets up the wave motion which can be approximated by y=0.001sin(pie)t, where t is time in seconds.
As the result of installation of noise suppression materials, noise level in the auditorium was decreased from 93dB to 80dB. What percent decrease in intensity level of noise is due to installation
If the weight hanging on the string of length 3 feet swings through 9° on either side of vertical, how long is arc through which weight moves from one high point to next high point?
How long will coffee temperature remain between 110 degrees and 130 degrees? Temperature is considered optimal drinking temperature. Which company would you suggest to restaurant? Why?
How many students are not getting any science, math, or english? How many students are getting exactly one science, math, or english?
Value V of the bank account in which $150 is invested at 3.00% interest, compound annually is provided by equation below where t is time in years. Determine value of account after three years. V= 1
Determine distance between cities. Suppose earth is the sphere of radus 4000 miles and that cities are on same longitude. One city is due north of other. cities SF, CA latitude 37, 47, 36 N and Seat
Take the 11 by 17-inch piece of paper and cut out 4 equal squares from corners. Fold sides to make the open box. Determine dimensions of box which has maximum volume.
Surveyor then estimates angle to top of radio tower on building and finds that it is 46*. Determine how much tall is radio tower?
The cable which is 26 feet long goes from ground to top of house and forms the angle of 48.7* with wall of house. How many feet tall is house?
For infinite geometric series below reply following questions: -1/3 + -1/6 + -1/12 + -1/24 + ... a) Determine common ratio, r. b) Describe why series converges based on its value of r. c) Determine
Use Binomial Theorem to determine 4th term of (2x3 - 1)7. Illustrate problem set up and final answer. Simplify final answer. Remember that when finding terms, begin counting with j=0.
Graph exponential function by hand. Find any asymptotes and intercepts and find whether graph of function is increasing or decreasing. f(x)=(5/4)^-x.
Write polynomial as product of linear and quadratic factors which are irreducible over reals. f(x) = (c) Write polynomial in completely factored form.
Write standard form of quadratic function which has indicated vertex and whose graph passes through given point. Use the graphing utility to verify the result. Vertex: (6, 1); Point: (8, -7).
In traveling three-fourths of way around the traffic circle car travels .215 mi. Determine radius of radius of traffic circle? Radius of traffic circle is __ mi.
Correct to the nearest hundredth of the degree, determine angle of rotation essential in the change of axes to rotate xy term from equation 14x^2 + 14xy + 12y^2 - 5y = 6.
Polar equation of the ellipse with directrix x= -d can be written in form r= a(1-e^2) / (1-e cos theta). Illustrate that perihelion distance from the planet to sun is a(1 - e) and aphelion distance
Determine all horizontal asymptotes. Compute all vertical asymptotes. Determine x- intercepts in co-ordinate form. Determine y- intercepts in co-ordinate form. Determine domain of function.
Write the system of equation in matrix form AX=B. Compute inverse of coefficient Matrix. Write it down. Solve system of linear equation.
The tree on hillside casts the shadow 200 ft down the hill. If angle of inclination of hillside is is 23 degrees to horizontal and angle of elevation of sun is 54 degress, determine height of tree.
Find slopes of tangent lines to circle 2) For (x - 4)^2+ (y - 3)^2= 16 that both pass through point (5, -1). Radius should be distance from center of circle to each tangent line.
The nautical mile equals length of arc subtended by the central angle of 1 minute on the great circle on surface of Earth. If radius if Earth is taken as 3960 miles, state 1 nautical mile in terms of
The car runs over the nail at 25 mph and nail is lodged in tire tread 12 inches from center of wheel. Compute angular velocity of nail in radians per hour? Find linear velocity of nail in inches/ho
Use the sum or difference formula to determine exact value of trigonometric function cos 75 degree simplyfy answer, including any radicals, employ integers or fractions for any numbers in expressio