We must graph y=x^3-9x^2+11x+21. Please, see the attached file.
Then we see were the graph cuts the x-axis, and these values of x are the real solutions of the given equation:

The real solutions of the given equation are:x = -1, 3, and 7

7 0

2 years ago

Donna's TV screen is 20 inches long. If the diagonal measures 25 inches, how long is the width of Donna's TV?

lawyer [7]

25^2 - 20^2 = A^2
225 = A^2
The sq root of 225 = 15
The width of Donna’s TV is 15 inches.
Hope this helps!
I would appreciate it if I got brainliest! Thanks! =D

7 0

2 years ago

Ron Prentice bought goods from Shelly Katz. On May 8, Shelly gave Ron a time extension on his bill by accepting a $3,000, 8%, 18

Bad White [126]

Answer:

vsfyvsy stop! me off do is ask if em is everything ok well if the if the if the yr

7 0

2 years ago

Will an object with a density of. 97 g/ml float or sink in water explain

Ainat [17]

I would say the object will float because the density of water is 999.99kg/m which is slightly less than 1g but still more than the object.

3 0

2 years ago