Solve the equation.
= -4
A. 1
B. 12
C. -8
D. -7
Answer: B
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Find the missing parts of the triangle. A = 20°a = 35 kmb = 50 kmIf necessary, round angles to the nearest whole number and side lengths to the nearest km.
A. no such triangle B. B1 = 29°, C1 = 131°, c1 = 78 km B2 = 151°, C2 = 9°, c2 = 16 km C. B1 = 131°, C1 = 29°, c1 = 78 km B2 = 9°, C2 = 151°, c2 = 16 km D. B = 29°, C = 131°, c = 78 km
Using the exponential key of a calculator to find an approximation to the nearest thousandth.0.64.458
A. 0.103 B. 3.6 C. 2.675 D. 7849.471
A formula is given along with the values of all but one of the variables in the formula. Find the value of the variable not given. Round to the nearest hundredth where necessary.A = 
bh; b = 20, h = 13
A. 260 B. 33 C. 33.5 D. 130
Write the exponential equation as an equation involving a common logarithm or a natural logarithm.ex = 17
A. ln 17 = x B. ln x = 17 C. log17 x = e D. logx e = 17