Solve the equation by completing the square.4x2 - 7x = 1
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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For the curve r(t), write the acceleration in the form aTT + aNN.r(t) = (t + 5)i + (ln(cos t) - 3)j + 2k
A. a = (sec t tan t)T + (sec t)N B. a = (sec t tan t)T - (sec t)N C. a = (-sec t tan t)T + (sec t)N D. a = (-sec t tan t)T - (sec t)N
Mathematics
Write the whole number in standard form.3000 + 70 + 4
A. 374 B. 347 C. 3740 D. 3074
Mathematics
Simplify. Combine like terms if possible.-4x - 5y
A. -9(x + y) B. -4x - 5y C. -9xy D. -2xy
Mathematics
Use the even-odd properties to find the exact value of the expression. Do not use a calculator.sin (-60°)
A. - 
B. - 
C. 
D. 
Mathematics