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Questions in Grade Middle-school

[Answered] A picture frame is 16 inches long and 9 inches tall. It is 2 inches wide on all four sides. What is the area of the picture frame?

[Answered] Which human body systems work directly together to allow locomotion?

[Answered] What is the measure of the angle (in degrees) that the minute hand traces in 20 minutes?

[Answered] a dialysis machine can be used to remove waste from a patient's blood. which human body system works in a similar way ?

[Answered] What is the range of the relation \((-3, 6), (5, 2), (-1, -5), (6, -3)\)?

[Answered] The London Eye (a Ferris wheel) makes one rotation in approximately 30 minutes. What is the measure of the angle (in degrees) that a cart (spoke on the wheel) will rotate in 12 minutes?

[Answered] A stockbroker earns a commission by a flat fee for each transaction as well as a fee per share. On a particular transaction, the stockbroker sold 5,000 shares to a client at a rate of $0.01 per share. The cost of the transaction totaled $57.50. Which of the following equations describes the cost of this transaction in terms of shares sold? A. \( y = 0.01x \) B. \( y = 0.01x + 7.5 \) C. \( y = 0.01x + 4,999.425 \) D. \( y = 0.01x + 5,000 \)

[Answered] Where are albino tigers found?

[Answered] A source of waves produces 20 crests and 20 troughs in 0.4 seconds. Find the frequency of the wave.

[Answered] If [tex]3x + 2y = 12[/tex] and [tex]xy = 6[/tex], then find the value of [tex]9x^{2} + 4y^{2}[/tex].