Answer:
1st answer is 108
Step-by-step explanation:
108 is equivalent to 54 because 10 x 4 = 8 x 5 = 40. 1512 is equivalent to 54 because 15 x 4 = 12 x 5 = 60. 2016 is equivalent to 54 because 20 x 4 = 16 x 5 = 80
Probably 1.28 I did my best to solve it so that may help you good luck !
90degree counterclockwise rotation.
Answer:
x = 4 ±9i
Step-by-step explanation:
x^2 - 8x + 97 = 0
Complete the square by subtracting 97 from each side
x^2 - 8x =- 97
Take the coefficient of x
-8 and divide by 2
-8/2 = -4
Then square it
(-4)^2 = 16
Add it to each side
x^2 - 8x + 16 = -97+16
(x-4)^2 = -81
Take the square root of each side
x-4 = ±sqrt(-81)
x-4 = ±9i
Add 4 to each side
x = 4 ±9i
