Solve the quadratic inequality if possible. Round your answer to the nearest tenth, if necessary.2x2 ? x2 - 11
A. -11 ? x ? 11
B. All real numbers satisfy this inequality.
C. No real number satisfies this inequality.
D. x ? -11 or x ? 11
Answer: B
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Solve.Janine and Thor are both running for class president. Janine goes down a hallway in the school and puts a sticker on every fourth locker. Thor goes down the same hallway, putting one of his stickers on every fifth locker. If there are 130 lockers in the hallway, how many have both students' stickers?
A. 13 B. 26 C. 6 D. 20
Solve the problem.The sales tax on the purchase of a car is $3131.68. If the tax rate is 7.4%, find the purchase price of the car.
A. $31,316.80 B. $45,451.68 C. $1,325,326.98 D. $42,320.00
Find the term that should be added to the expression to form a perfect square trinomial. Write the resulting perfect square trinomial in factored form.x2 + 20x
A. 100; 
2
B. 400; 
2
C. 0; 
2
D. 100; 
2
Solve the equation.0.2 = 23.7 - x
A. x = 23 B. x = 23.5 C. x = 23.9 D. x = 23.4