Answer:
7 degrees
Step-by-step explanation:
The temperature starts at -5. It rises 20 degrees so that means it is now 15 degrees. It decreased 8 degrees so now it is 7 degrees.
The main thing you are doing is adding and subtracting
Answer:
16 runners
Step-by-step explanation:
you have to add up all the runners that are under 13 minutes. Which is, 8+6+2 = 19 runners
The standard deviation is the square root of the variance
so if the variance is 3.6, the standard deviation is the sqrt 3.6...
sqrt 3.6 = 1.897 <= if u need it rounded, it is 1.9 grams
Answer: B
Step-by-step explanation: You make the values in the parentheses equal to zero.
(X + 3) = 0
X = -3
A is wrong because the root would be 3, not negative 3. C is wrong because 3 isn’t guaranteed to be a root. D is wrong because -3 is a real solution.
Answer:
-1/12
Step-by-step explanation:
1/4 - 1/3 = 3/12 - 4/12 = - 1/12
