Graph the quadratic equation by finding and plotting ordered pair solutions.y = 
x2
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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For the curve r(t), find an equation for the indicated plane at the given value of t.r(t) = (2t sin t + 2 cos t)i + (2t cos t - 2 sin t)j + 7k; normal plane at t = 1.5?.
A. y = -2 B. x - y + z = -2 C. x + y + z = -2 D. y = 2
Mathematics
Write out the sum. Do not evaluate.
A. 1 + 3 + 8 + 13 + 18 + 23 B. 3 + 8 + 13 + 18 + 23 + 28 C. 3 + 8 + 13 + 18 + 23 + 28 + ... D. 65
Mathematics
Use the fact that the trigonometric functions are periodic to find the exact value of the expression. Do not use a calculator.sin 765°
A. - 
B. 
C. - 
D. 
Mathematics
Write the expression in the standard form a + bi.i18 + i16 + i14 + 1
A. -1 B. 1 C. i D. 0
Mathematics