Answer:
Step-by-step explanation:
Without more input from you, it's hard to find an exact value for b. However, b may take on a large range of values. b = 10 and b = -3 (chosen arbitrarily) are acceptable choices.
Take a look at the quadratic formula. The discriminant is b^2 - 4ac. There is nothing about this equation that restricts or forbids the use of any value of b.
Often, variability is most usefully expressed in the same units as the original data. That's what <em>standard deviation</em> (square root of variance) does. In situations where that is the case, the variance is useful only for getting to the value of standard deviation.
Answer:
105
Step-by-step explanation:
14:20=7:10
150/10=15
7x15=105
Answer:
f(3) = 26
Step-by-step explanation:
Average rate of change of a function on an interval is;
f(a) - f(b)/(a-b)
Here, we want to find the value of f(-3)
To find the average rate of change on the given interval;
we have;
f(3) - f(-2)/3-(-2) = 17/5
f(3)-9/5 = 17/5
Since denominator is same, we equate numerator;
f(3)-9 = 17
f(3) = 17 + 9
f(3) = 26
Answer:
-15
Step-by-step explanation:
-3 - 2(-6)
-3 -12
-15
