5. A field-hockey ball must stay below waist height, approximately 1 m, when shot; otherwise, it is a dangerous ball. Sonia hits the ball. The function h(t) 3t² +9t where h(t) is in metres and t is in seconds, models the height of the ball. Has Sonia shot a dangerous ball? Explain with the use of mathematical reasoning.

Q: 20. A model rocket is launched off the top of a table. The height of the rocket is given by the…

A:

Q: Abram-Takera owns Scylar LLC. The firm produces and sells GramFam brand The firm’s weekly  profit in…

A: The weekly profit of the firm in thousands of dollars for sweatpants is given by the function

Q: The total value of sales on eBay has increased annually since it was founded in 1995. That value is…

A:

Q: Write the function in the form y = a(x - h)2 + k. 12) f(x) = 3x2 - 6x + %3D 8. %3D

A:

Q: A power company calculates a person's monthly bill from the number of kilowatt-hours (kWh), x, used.…

A: Solve as general

Q: Answer D) How many solutions does the equation h(x)=0 have? Justify your answer.

A: Checked the graph on Desmos graphing calculator. f(x) is the red one and h(x) is the blue one.

Q: NASA launches a rocket at t=0 seconds. Its height, in meters above sea-level, as a fa given by…

A:

Q: 3. The height, h, in metres, of a weather balloon above the ground after t seconds can be modelled…

A: The general form of a cubic equation is , where a, b, c and d are constants.The following steps are…

Q: 3. At a swim meet, Jane dives from a diving board that is 48 feet high. Her position above the water…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: 5. The height of a chair on a Ferris wheel is described by the function h(t) 15cos(t − 4) + 18 where…

A: Let's find possible height of ferris wheel.