Graph the polar equation.r = - 
+ cos ?
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Find the number of molecules in the given quantity of a compound whose molar mass is given. Express your answer in scientific notation, rounding the decimal part to the nearest hundredth.50 grams of carbon monoxide (CO); molar mass: 28.01 grams
A. 8.43 × 1026 molecules B. 1.07 × 1024 molecules C. 8.43 × 1027 molecules D. 1.07 × 1023 molecules
Mathematics
Classify the angle as acute, obtuse, right, or straight.
A. Acute B. Right C. Straight D. Obtuse
Mathematics
Use your estimation skills to pick the most reasonable answer. Do not solve the problem.19 - 18.676
A. 3.24 B. 0.324 C. 0.0324
Mathematics
Write in logarithmic form.
= 8-2
A. log8 (-2) = 
B. log8 
= 8
C. log
8 = -2
D. log8 
= -2
Mathematics