Determine the quadrant containing ?.tan ? > 0 and csc ? < 0
A. I
B. II
C. III
D. IV
Answer: C
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Let x be a number. Translate the English phrase or sentence into a mathematical expression. Four less than a number
A. x + 4 B. 4 - x C. 4x D. x - 4
The orbit of Hale-Bopp comet, discovered in 1995, is an ellipse with eccentricity 0.995 and one focus at the Sun. The length of its major axis is 366.5 AU. [An astronomical unit (AU) is the mean distance between Earth and the Sun, about 93 million miles.] Find the maximum distance from the comet to the Sun. (The perihelion distance from a planet to the Sun is a(1-e) and the aphelion distance is a(1+e).) Find the answer in AU and round to the nearest hundredth.
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Solve the problem.List all the combinations of 6 objects a, b, c, d, e, and f taken 2 at a time. What is C(6, 2)?
A. ab, ac, ad, ae, bc, bd, be, cd, ce, cf, de, df C(6, 2) = 12 B. aa, ab, ac, ad, ae, af, ba, bb, bc, bd, be, bf, ca, cb, cc, cd, ce, cf, da, db, dc, dd, de, df, ea, eb, ec, ed, ee, ef, fa, fb, fc, fd, fe, ff C(6, 2) = 36 C. ab, ac, ad, ae, af, bc, bd, be, bf, cd, ce, cf, de, df, ef C(6, 2) = 15 D. ab, ac, ad, ae, af, ba, bc, bd, be, bf, ca, cb, cd, ce, cf, da, db, dc, de, df, ea, eb, ec, ed, ef, fa, fb, fc, fd, fe C(6, 2) = 30
Solve the equation by factoring.-6x - 2 = (3x + 1)2
A. 
B. 
C. ?
D. 