There are 30 students in Mrs. Woodward’s class, and 1/2 of the class has their own cellphone. Of the group with cellphones, only 40% have enough data to search the name of an author. How many of the students have a cellphone and data to search for the author’s name?
Is this more or less than 1/3 of the entire class?

Two sides of a triangle mesure 20cm and 30cm. what is the measure of the third side

(a) compute the maclaurin polynomial m2(x) for f(x) = cos x. (b) use the polynomial of part (a) to estimate cos π 12. (c) use a calculator to compute the error made using the estimate from part (b) for the value of cos π 12. remember that the error is defined to be the absolute value of the difference between the true value and the estimate.

Two cars which are 40 miles apart start moving simultaneously in the same direction with constant speeds. if the speed of the car which is behind is 56 mph and the speed of the other car is 48 mph, how many hours will it take for the car which is behind to catch up the car ahead of it?