Simplify the expression.
+ 
A. 
B. 
C. 
D. 
Answer: D
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Find the triple scalar product (u x v) ? w of the given vectors.u = i + j + k; v = 10i + 9j + 7k; w = 3i + 2j + 4k
A. 10 B. 34 C. -4 D. 36
Use a graphing calculator to solve the linear equation.The graph of y1 is shown in the standard viewing window. Which is the only choice that could possibly be the solution of the equation y1 = 0?
-5, 5, 
, 15
A. -5
B. 
C. 15
D. 5
Find the y-intercepts and any x-intercepts.y = x2 + 4x + 8
A. y-intercept (0, 8), no x-intercepts B. no y-intercept, no x-intercept C. y-intercept (0, 8), x-intercept (-4, 0) D. y-intercept (0, 8), x-intercept (2, 0)
Solve the problem.Which is colder: a temperature of -15 degrees Fahrenheit or a temperature of -18 degrees Fahrenheit?
A. -18 degrees Fahrenheit B. -15 degrees Fahrenheit