The pendulum on a grandfather clock swings from side to side once every second. If the length of the pendulum is 4 feet and the angle through which it swings is 23°, how far does the tip of the pendulum travel in 1 second?
?
If the answer needs rounding, round it to three significant digits.
?
__________ feet
What will be an ideal response?
1.61
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Find the function value to four decimal places.Find cos ? when sin ? = -0.9816 and tan ? > 0.
A. -1.0188 B. 0.1948 C. 5.1335 D. -0.1912
Find the equation of the least-squares regression line. Graph the line and data points on the same graph.
A. y = 70.4 - 6.2x
B. y = 90.0 - 5.0x
C. y = 40.0 - 6.25x
D. y = 100.4 - 6.2x
Solve the problem.To find the speed of a free-falling skydiver we use the formula s = v - 32t, where s is the speed of the skydiver, v is the initial velocity, and t is the time since the start of the free fall. Find the speed of a skydiver at time t = 2 seconds if her initial downward velocity (v) is -8 feet per second.
A. -72 ft/sec B. -56 ft/sec C. 258 ft/sec D. -64 ft/sec
Write the fraction in simplest form using the method of your choice.
A. 9w
B. 
C. 
D. 