Find v ? u.v = -4i + 7j and u = 8i + 8j
A. 24
B. 4i + 15j
C. -32i + 56j
D. -88
Answer: A
Mathematics
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Simplify. Be sure to rationalize the denominator. Assume that all variables represent positive real numbers.
A. 10
+ 60
B. 10
- 6
C. 10
- 60
D. 
Mathematics
Solve the equation. Check your solution.-4x - 5 - 8x + 10 = 8
A. 
B. 
C. 
D. 
Mathematics
If y varies directly as x, find a linear function which relates them.y = 7 when x = 35
A. f(x) = 
B. f(x) = 
C. f(x) = 5x
D. f(x) = x + 28
Mathematics
Evaluate the sum. Round to the nearest hundredth, if necessary.
A. 21 B. 15 C. 20 D. 11
Mathematics