Answer: 60
Step-by-step explanation:
To find how much she rolls in 1 minute, you divide 18 by 12. This gets you 1.5. Multiply 1.5 by 40 and you get 60.
It is plus or minus 10x. the square root of 100 is 10, and x is unaffected. But it can be positive or negative because -10 X -10 is also 100.
Hope this helps.
Answer:
C, never negative
it can be zero in exactly one occasion
The<span> part of the quadratic formula that tells you whether the quadratic equation can be solved by factoring is b^2 - 4ac
Given 2x^2 + 7x + 3 = 0
b^2 - 4ac = (7)^2 - 4(2)(3) = 49 - 24 = 25</span>