Add or subtract, if possible. Assume that all variables represent non-negative values and be sure to simplify your answer.
+ 
+ 
+ 2
A. 19
+ 16
B. 41
C. 19
+ 22
D. 193
+ 172
Answer: C
Mathematics
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Find the curvature of the curve r(t).r(t) = (10t + 5)i - 9j + (10 - 5t2)k
A. ? = 
B. ? = 10
3/2
C. ? = 
D. ? = 10
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Find an antiderivative of the given function.x7 - 
A. 
+ 
B. 
- 
C. 
- 
D. 7x6 + 
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Find the indicated probability. Round your answer to 6 decimal places when necessary.A die with 6 sides is rolled. What is the probability of rolling a number less than 5?
A. 
B. 
C. 4
D. 
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Find the product. Assume variables represent positive real numbers.-9k1/8(8k3/8- 5k3/4)
A. -72k-1/4 - 45k-5/8 B. -72k1/2 - 45k7/8 C. -72k3/64 + 45k3/32 D. -72k1/2 + 45k7/8
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