Solve.When a single card is drawn from an ordinary 52-card deck, find the probability of getting a black 7.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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x? = ?y, y? = ?4x ? 3y
Solve the first-order linear system.
Mathematics
Verify the identity.
= 
What will be an ideal response?
Mathematics
Let p represent "I eat too much," let q represent "I exercise," and let r represent "the food is good." Write the compound statement in symbols.If the food is good or I eat too much, then I exercise.
A. (r ? p) ? q B. (r ? p) ? q C. r ? (p ? q) D. r ? p ? q
Mathematics
Convert the mass as indicated.523 grams to milligrams
A. 523,000 mg B. 0.0523 mg C. 52,300 mg D. 0.523 mg
Mathematics