I hope this helps you
121=11.11
a^2-11^2
(a-11). (a+11)
a.a+11a-11a-11.11
a^2+0-121
a^2-121
Answer:
35 mins lost
out of 3 and 1/2 hrs = 3.5 x 60 mins = 210 mins
%time lost = time lost/total time x 100
= 35/210 x 100
= 1/6 x 100
= 16.66666 %
Answer:
Step-by-step explanation:
Answer:
- Positive at (-9, 2)
- Negative at ( -oo, -9) or (2, + oo)
Step-by-step explanation:
<u>Given function</u>
<u>Getting zero's</u>
- -2x^2 - 14x + 36 = 0
- x^2 + 7x - 18 = 0
- x = ( -7 ± √(49 +72))/2 = ( -7 ± 11)/2
- x = - 9 and x = 2
<u>As the x^2 has negative coefficient, the function is positive between -9 and 2</u>
<u>And it is negative at:</u>
- x < -9 and
- x > 2
- or
- ( -oo, -9) or (2, + oo)
Answer:
I'm not sure, you posted this like a longggggg time ago so we're good. bye. hope i helped.
Step-by-step explanation:
