Find the domain of the function.f(x) = 
A. (-?, 
) ? (
, ?)
B. (-?, 23) ? (23, ?)
C. (-?, 23]
D. (-?, 
]
Answer: C
Mathematics
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Find the number of subsets.{x?x is a day of the week}
A. 128 B. 127 C. 124 D. 256
Mathematics
Provide an appropriate response.In a formula r varies jointly as s and t. if r = 540 when s = 15 and t = 24, find r when s = 21 and t = 30.
A. 771 B. 22.5 C. 945 D. 9,540
Mathematics
Solve the problem.The length of a vegetable garden is 7 feet longer than its width. If the area of the garden is 98 square feet, find its dimensions.
A. 8 ft by 15 ft B. 7 ft by 14 ft C. 6 ft by 15 ft D. 6 ft by 13 ft
Mathematics
Write an equivalent expression using a commutative law.9x + 2
A. 2 + x9
B. 
+ 2
C. 2 + 9x
D. x9 + 2
Mathematics