Answer:
5.
Step-by-step explanation:
-6 = x^2 + 4x - 1
x^2 + 4x - 1 = -6
Add 6 to both sides
x^2 + 4x + 5 = 0
The value of c is the value of the number with no x attached to it. So, the value of c in the new equation is 5.
Hope this helps!
Answer:
83
Step-by-step explanation:
Answer:
9/0
Step-by-step explanation:
Answer:
24x + 48
Step-by-step explanation:
12(2x) + 12(4) = 24x + 48
Answer:
a) Mean=0 and Standard deviation=1
b) The z-scores have no units of measurement
Step-by-step explanation:
When we convert all the pulse rates of women to z-scores using the formula;
the mean is 0 and the standard deviation is 1.
The reason is that, the resulting distribution of z-scores forms a normal distribution which has a mean of 0 and a standard deviation of 1.
b) The z-scores are standardize scores and has no units of measurement. They give us how many standard deviations below or above the mean of the corresponding values.