For a 90 Degree rotation the original x value becomes the new y value and the new x value is the opposite of the original y value.
The answer would be (-6,-7)
Answer:
B
Step-by-step explanation:
h multiplied by 9 must give you an answer equal or higher than 81 therefore it cant be A, could be C except the minimum is 81, and definitely not B
Are you familiar with z-scores? According to the definition,
(given numerical value) - (mean)
z = ---------------------------------------------
standard deviation
Thus, with the given numerical value equal to 410 and the std. dev. equal to 75, the corresponding z-score is
410-500 -90
z = --------------------- = --------------- = -1.2
75 75
Use a table of z-scores to determine the area under the standard normal curve to the left of z = -1.2. Your result is the probability that a given family chosen at random spends less than $410 per month.
Step-by-step explanation:
(8y)2=16y
(8y)²=64y²
Hope it helps