Find the indicated vector.Let a = 3i, b = i + j. Find 3a + b.
A. 
B. 
C. 
D. 
Answer: B
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Find the sum of the series by recognizing how it is related to something familiar.
A. 
B. e4x
C. 
D. ln (1 - 4x)2
Solve.A metal rod changes in length by 0.82 mm for every 1°C change in temperature. If it expands when heated and contracts when cooled, express its change in length as a signed number as the temperature changes from 34°C to 25°C.
Fill in the blank(s) with the appropriate word(s).
Add or subtract as indicated. Simplify, if necessary.
- 
A. - 
B. 
C. 
D. - 
Solve the problem.The height of an egg after t seconds when thrown straight up with an initial speed of 128 feet per second from a height of 224 feet is given by the polynomial 
Write this polynomial in factored form.
A. -4(4t2 - 32t - 56) B. -16(t2 - 8t - 14) C. 2(-8t2 + 64t + 112) D. 16(-t2 + 8t + 14)