?Solve the system by the method of substitution.
?
?
?
A. ?(-1, -3)
B. ?(-3, 1)
C. ?(1, -3)
D. ?(3, 1)
E. ?(1, 3)
Answer: E
Mathematics
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Solve. Round to the nearest tenth when necessary.Jack and Jill are planning a new kitchen. The old kitchen measured 11 feet by 20 feet. The new kitchen is similar in shape, but the longest dimension is 28 feet. What is the smaller dimension of the new kitchen?
A. 50.9 ft B. 7.9 ft C. 15.4 ft D. 6160 ft
Mathematics
Find the prime factorization. Write the answer in exponential form.1491
A. 21 ? 71 B. 32 ? 71 C. 72 ? 71 D. 3 ? 7 ? 71
Mathematics
Find the difference quotient, 
, for the function and simplify it.a(x) = 
A. 
B. 
C. 
D. 
Mathematics
Add or subtract terms whenever possible.4
+ 8
A. 12
B. 32
C. -4
D. 12
Mathematics