Answer:
0.964
Step-by-step explanation:
It's easier to approach this problem if you find the prob. that z is less than -1.8 and then subtract your result from 1.00.
The prob. that z is less than -1.8 can be found using any calculator with probability and statistic functions.
The prob. that z is less than -1.8 = normcdf(-100,-8) = 0.036. Here "cdf" stands for "cumulative probability density function)," -100 is far to the left of z = -1.8, and the result (0.036) is the area under the standard normal probability density curve to the left of z = -1.8.
Finally, subtract this 0.036 from 1.000, obtaining 0.964. This is the probability that z is greater than -1.8.
Given:
Two values of a linear function are f (6) = 8 and f (9) = 3.
To find:
The linear function.
Solution:
According to the question f (6) = 8 and f (9) = 3, it means the function passes through (6,8) and (9,3).
If a linear function passes through two points then the equation is
So, the equation of linear function is
Add 8 on both sides.
Function form is,
Therefore, the required linear function is .
Answer:
C. 780
Step-by-step explanation:
C(n) = 500 + 4n n = number of students attending = 70
C(70) = 500 + (4*70)
C(70) = 500 + 280
C(70) = 780
