Use the given vectors to find the specified scalar.u = -6i - 3j, v = 6i + 4j; Find (-2u) ? v.
A. 84
B. 38
C. -2
D. 96
Answer: D
Mathematics
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Solve the equation.2x2 - 7x - 9 = 0
A. x =, -1
B. x = , 1
C. x = , -1
D. x = , 0
Mathematics
Provide an appropriate response.Rewrite tan x and use the product rule to verify the derivative formula for tan x.
What will be an ideal response?
Mathematics
Multiply.(s + t + 4)(s + t - 4)
A. s2 + 2st + 8s + 8t + t2 - 16 B. s2 + t2 - 16 C. s2 - 2st - 8s - 8t + t2 + 16 D. s2 + 2st + t2 - 16
Mathematics
Find the product. Write the answer in standard form.9i(3 + 4i)2
A. -216i + 216i2 + 144i3 B. -63 + 216i C. -216 - 63i D. -63i
Mathematics