Simplify the expression and write the answer without negative exponents.(-7x2y)(-6x3y5)
A. 42x6y5
B. 42x5y6
C. -42x5y5
D. -13x5y5
Answer: B
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Perform the indicated operations. Write the result in the form a + bj.
A. 
B. 
C. 
D. 
The magnitudes src="https://sciemce.com/media/4/ppg__hgh0505191830__f1q120g6.jpg" alt="" style="vertical-align: -4.0px;" />
A. 19.1
B. 20.7
C. -36.2
D. 17.4
, 
, and the angle ? between the vectors v and w are given. Round the requested magnitude or angle to the nearest tenth.
= 14, 
= 13, ? = 80°
Find
Solve the problem.A ball is thrown downward from a window in a tall building. Its position at time t in seconds is 
where s is in feet. How long (to the nearest tenth) will it take the ball to fall 133 feet?
A. 2.1 sec B. 2.9 sec C. 4.4 sec D. 1.9 sec
Use differentials to estimate the amount of paint needed to apply a coat of paint 0.0017 cm thick to a hemispherical dome with diameter 70 m.
Select the correct answer. a. 4.165? b. 2.52? c. 4.11? d. 3.82? e. 2.28?