Write the vector v in the form v1i + v2j, given 
and the direction angle ? of v.
= 9, ? = 45°
A. 
i + 
j
B. i + 
j
C. - 
i - 
j
D. 
i + 
j
Answer: A
Mathematics
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Perform the indicated computations. Write the answer in scientific notation.(2 × 105)-1
A. 2 × 10-4 B. 5 × 10-6 C. 2 × 10-5 D. 5 × 104
Mathematics
Solve.
= 
A. 
B. 15
C. 5
D. 
Mathematics
Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. 
B. x + 3
C. 
D. x - 3
Mathematics
Graph the function using its vertex, axis of symmetry, and intercepts.f(x) = x2 - 6x + 8 
A. vertex (3, -1)
intercepts (4, 0), (2, 0), (0, 8)
B. vertex (-3, 1)
intercepts (-4, 0), (- 2, 0), (0, -8)
C. vertex (3, 1)
intercepts (4, 0), (2, 0), (0, -8)
D. vertex (-3, -1)
intercepts (-4, 0), (- 2, 0), (0, 8)
Mathematics