Solve the problem. Round your answer to the nearest whole number.A tree casts a shadow 21 m long. At the same time, the shadow cast by a 70-cm tall statue is 73 cm long. Find the height of the tree.
A. 19 m
B. 21 m
C. 20 m
D. 22 m
Answer: C
Mathematics
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Find all the roots of the function. Use preliminary analysis and graphing to determine good initial approximations. Round to six decimal places.f(x) = csc x - 2x on [0, 4]
A. x ? 0.740730, 2.972474 B. x ? 0.850852, 2.862574 C. x ? 0.740841, 2.972585 D. x ? 0.850841, 3.082585
Mathematics
Express the function in terms of its cofunction.sec 40°
A. csc 40° B. sec 140° C. cos 50° D. csc 50°
Mathematics
Determine the phase shift of the function.y = 3 cos 
A. 
units to the right
B. 
units to the left
C. 3 units down
D. 3 units up
Mathematics
Solve the equation.
= 21
A. {-220} B. {440} C. {110} D. {220}
Mathematics