function is given by f (x) = 3x2 ?5 . Find
(a) f (?7) .
(b) f (x +1) .
(a) 142
(b) 3x2 + 6x ? 2
Mathematics
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Sketch a typical level surface for the function.f(x, y, z) = x - y2 - z2
A. 
B. 
C. 
D. 
Mathematics
Use a sum-to-product identity to rewrite the expression.sin 30° + sin 58°
A. 2 cos 44° sin 14° B. -2 sin 44° sin 14° C. 2 sin 44° cos 14° D. 2 cos 44° cos 14°
Mathematics
Use De Moivre's theorem to simplify the expression. Write the answer in the form a + bi.
4
A. -4 B. -4i C. 4i D. 4
Mathematics
Find the measure of each marked angle.
A. 60° and 120° B. 45° and 55° C. 90° and 270° D. 45° and 135°
Mathematics