Graph the function 
.
A. 
B. 
C. 
D. 
Answer: B
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Solve the initial value problem.Differential Equation: 
= (-cos t)i + (4t3+ 8)jInitial Condition: r(0) = 4j
A. r(t) = (sin t)i + (12t2 + 4)j B. r(t) = (-sin t)i + (t4+ 8t + 4)j C. r(t) = (-sin t)i + (t4 + 4)j D. r(t) = (-sin t)i + (t4)j
Let T denote the temperature, in degrees, of a cup of coffee t seconds after it is placed on the counter to cool. Let 
denote, the difference, in degrees, between the temperature of the coffee and room temperature. Then D satisfies the equation of change
.
?
A: What can you conclude about the function 
?B: If the temperature of the coffee is initially 186 degrees, find a formula that gives D in terms of t. Write your answer using the alternative form for an exponential function.C: Find a formula that gives T in terms of t.
What will be an ideal response?
Rewrite the expression without the grouping symbols.a(a - 6)
A. a2 + 6a B. a2 - 6a C. a - 6a D. a2 - 6
Perform the indicated operation and simplify.
- 
A. 
B. 
C. 
D. 