Evaluate the expression without using a calculator.log 1000
A. 
B. 
C. 3
D. 30
Answer: C
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Find the indicated derivative for the given vector-valued function .Find Dtr(t) for r(t) = (4t4 + 5t3 - 1)i + 7k.
A. Dtr(t) = (16t3 + 15t2)k B. Dtr(t) = (16t3 + 15t2)i + k C. Dtr(t) = (16t3 + 15t2)i D. Dtr(t) = (4t3 + 3t2 - 7)i + k
Suppose that ln 2 = a and ln 5 = b. Use properties of logarithms to write each logarithm in terms of a and b.ln 32
A. ab B. 5a C. a5 D. 10a
Solve. If needed, round money amounts to two decimal places and all other amounts to one decimal place.The manager of a coffee shop has one type of coffee that sells for $7 per pound and another type that sells for $15 per pound. The manager wishes to mix 60 pounds of the $15 coffee to get a mixture that will sell for $9 per pound. How many pounds of the $7 coffee should be used?
A. 240 pounds B. 120 pounds C. 180 pounds D. 90 pounds
Factor the trinomial completely. If the polynomial cannot be factored, write "prime."3x3y5 + 3x2y5 - 18xy5
A. 3xy5(x - 2)(x + 3) B. y5(3x2 + 6x)(x - 3) C. 3xy5(x + 2)(x - 3) D. prime