Answer:
a + b =1
Step-by-step explanation:
Write the given quadratic as x^2 – 1x – 90 = 0. This factors into
(x - 10)(x + 9) = 0, and so the roots/solutions are {-9, 10}.
If we call -9 "a" and 10 "b," then the sum a + b is -9 + 10, or a + b =1.
Fourty million, twenty-three thousand, thirty-two.
40,000,000 + 20,000 + 3,000 + 30 + 2
Answer:
Step-by-step explanation:
r = 12 cm
Theta = 62
Length of arc = 

= 12.98 cm
It's should be 5 cause I don't know