Questions in Grade High-school

Questions in Grade High-school

[Open]Solve each equation by completing the square. If necessary, round to the nearest hundredth. Please show all steps. 1. [tex]b^2 + 10b = 75[/tex] 2. [tex]n^2 - 20n = -75[/tex] 3. [tex]t^2 + 8t - 9 = 0[/tex] 4. [tex]m^2 - 2m - 8 = 0[/tex] 5. [tex]v^2 + 4v - 2 = 0[/tex]

[Open]Find the value of \(c\) such that each expression is a perfect-square trinomial. Please show all steps. 1. \(x^2 - 16x + c\) 2. \(p^2 - 14p + c\) 3. \(b^2 + 18b + c\) 4. \(n^2 - n + c\)

[Open]Suppose you are walking home after school. The distance from school to your home is five kilometers. - On foot, you can get home in 25 minutes. - If you rode a bicycle, you could get home in 10 minutes. a. What is your average speed while walking? b. What is your average speed while bicycling? c. How much faster do you travel on your bicycle?

[Open]What two numbers multiply to 42 but add up to 17?

[Open]42 is 21% of what number?

[Open]Two main proteins found in muscle are: A. smooth and skeletal B. tendons and ligaments C. actin and myosin D. myofibrils and fibers

[Open]A major characteristic of the Anasazi culture in what is today the U.S. Southwest was: A. The building of large mounds for burial grounds B. Potlatch ceremonies to display one’s wealth C. Sheepherding D. The erection of long houses E. The building of cliff dwellings

[Open]A pendulum has a period of 0.3 seconds. What is its frequency?

[Open]When a car travels around a curve in the road, what helps to keep the car driving in a curved path?

[Open]Charles can do a job in 1 hour, Bill can do the same job in 2 hours, and Bob can do the job in 3 hours. How long does it take them to do the job working together?