Decide whether the following is an expression or an equation. If it is an expression, simplify it. If it is an equation, solve it.x2 - 25 = 0
A. Equation; -5, 5
B. Expression; (x + 5)2
C. Equation; 5
D. Expression; (x - 5)2
Answer: A
Mathematics
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Use the quadratic formula or graphing methods to solve the inequality.8x2 - 36x + 8 ? 0
A. x ? ? 0.234 or x ?
? 4.266
B. ? 0.234 ? x ?
? 4.266
C. x ? ? 0.234
D. x ? ? 4.266
Mathematics
Use the Principle of Mathematical Induction to show that the statement is true for all natural numbers n.2 + 2 ? + 2 ?
2 + ... + 2 ?
n - 1 =
What will be an ideal response?
Mathematics
Solve.5y-2 + 8y-1 + 3 = 0
A. , 1
B. , 1
C. - , -1
D. - , - 1
Mathematics
Simplify. Assume that variables represent positive values.
A. 5 B. 25 C. 9 D. 45
Mathematics