Answer:
D
Step-by-step explanation:
The mean of a standard normal distribution is always = 0 with the standard deviation being equal to. Therefore a standard normal distribution is a normal distribution described with a mean of 0 and standard deviation of 1. Since a standard normal distribution is centered at the middle with equal distribution to both the left and right of the distribution. The centre point is 0, which is the mean and the standard deviation is 1 to either side of the distribution.
The reflection of the point (x, y) across the y-axis is the point (-x, y). When you reflect a point across the line y = x, the x-coordinate and the y-coordinate change places. Notice how each point of the original figure and its image are the same distance away from the line of reflection (x = –2 in this example).
Answer:
7. A
8. C
9. C
10. A
Step-by-step explanation:
You just have to work each one out. This is very simple.
Each candy bar cost $4.
Step by step:
(Total spent) $36 - (soft drink) $4 = $32 (left for candy bars)
$32 divided by 8 (candy bars) = $4
Therefore, each candy bar was $4.
Answer:
15,15,15,
Step-by-step explanation:
48=12+12+12+12
48=(12+3)+(12+3)+(12+3)+(12+3)
