Solve the problem.In survey of 50 households, 25 responded that they have an HDTV television, 35 responded that they had a multimedia personal computer and 15 responded they had both. How many households had neither an HDTV television nor a multimedia personal computer?
A. 15
B. 25
C. 35
D. 5
Answer: D
Mathematics
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Factor completely the polynomial. Indicate any that are not factorable using integers.a 2 - 4a + 21
A. (a - 3)(a + 7) B. (a + 3)(a - 7) C. (a - 3)(a - 7) D. (a + 3)(a + 7) E. not factorable
Mathematics
Simplify. Assume all variables are non-negative real numbers.
A. 5xy
B. 5x
C. 5x2
D. 5xy2
Mathematics
Rewrite the expression with a positive rational exponent. Simplify, if possible.121/9 ? 128/9
A. 121/9
B. 
C. 12
D. 128/81
Mathematics
Find the vertices of the hyperbola. : 16y² - 4x² = 64
What will be an ideal response?
Mathematics