I hope this helps you

a=4

b=9

c= -1

disctirminant =b^2-4ac

disctirminant =9^2-4.4. (-1)

disctirminant =97

x1=-9+square root of 97/2.4= -9+square root of 97/8

x2= -9-square root of 97/2.4= -9-square root of 97/8

6 0

2 years ago

Read 2 more answers

Find the area of the semicircle. diameter = 12

dimaraw [331]

Answer:

$\huge\boxed{\sf Area\ of \ Semicircle = 56.55 \ units^2}$

Step-by-step explanation:

Diameter = 12

Radius = 12/2 = 6

$\sf Area\ of \ Semicircle =\frac{\pi r^2}{2} \\Area\ of \ Semicircle =\frac{\pi (6)^2}{2} \\Area \ of \ Semicircle = \frac{\pi (36)}{2}\\ Area \ of \ Semicircle = 18 \ pi$

$\sf Area\ of \ Semicircle = 56.55 \ units^2$

7 0

2 years ago

Read 2 more answers

Which statement is not correct?

Pachacha [2.7K]

Answer:

b.) because it is over 90*

Step-by-step explanation:

8 0

2 years ago