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Questions in Grade Middle-school

[Answered] Why do we see the color black?

[Answered] What is the secondary consumer in the Gulf of Mexico?

[Answered] Ian gets $9 for each hour he works and $10 for each day he works. To find out how much he makes in a day, he made the equation [tex]y = 9x + 10x[/tex], where [tex]x[/tex] is the number of hours he works. Explain why Ian's equation will not tell him how much he makes in a day.

[Answered] Identify the solution set of the given inequality using the given replacement set: Inequality: [tex]x < -5[/tex] Replacement Set: [tex](-9, -6.5, -5.2, -5, 0, 4.2)[/tex]

[Answered] A spinner is divided into 10 equal sections numbered from 0 to 10. You spin the spinner once. What is [tex]P(\text{divisible by 3})[/tex]?

[Answered] Christy bought an 8-foot piece of lumber to trim a bookshelf. Altogether, she needs 100 inches of lumber for the trim. Did Christy buy enough lumber? Explain.

[Answered] Use the discriminant to determine the number and type of solutions the equation has. \[x^2 + 8x + 12 = 0\] A. no real solution B. one real solution C. two rational solutions D. two irrational solutions

[Answered] Does the equation [tex]2x^2 + x - 1 = 9[/tex] have any real solutions? If so, what are they?

[Answered] Could you help me with math? How do you solve the equation [tex]2x^2 + 8x = 0[/tex]?

[Answered] Which fraction is equivalent to \( \frac{6}{9} \)? A. \( \frac{18}{36} \) B. \( \frac{3}{4} \) C. \( \frac{12}{18} \) D. \( \frac{1}{3} \)