Use the properties of real numbers to simplify the expression.
(-0.45)
A. -1
B. 1
C. -0.45
D. 
Answer: C
Mathematics
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Solve the problem.In an isosceles triangle, each base angle is 10° less than two times the third angle. Find the measures of all three angles.
A. 50°, 50°, 80° B. 70°, 70°, 40° C. 60°, 60°, 60° D. 80°, 80°, 20°
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Solve the problem.The decay of 431 mg of an isotope is given by A(t) = 431e-0.032t, where t is time in years. Find the amount left after 32 years.
A. 78 mg B. 150 mg C. 155 mg D. 417 mg
Mathematics
Solve.8x2 = 64x
A. 32 B. 8 C. 0, 8 D. 8, 8
Mathematics
Rewrite the division as a multiplication.
A. 
? 
B. 8 ? 
C. 
? a
D. 8 ? a
Mathematics