Answer:
47.74
Step-by-step explanation:
(tax is 8.5% of 100%, so you turn it into a fraction)
44 x .085 = 3.74
44 + 3.74 = 47.74
1. Move all terms to one side
2x^2+3x+1=0
2. Find the numbers for a, b and c
a=2
b=3
c=1
3. Put the numbers into the formula
3^2-4(2)(1)
4. Simplify
9-4*2*1
9-8
1
Answer:
y = ±√(x − 16)
Step-by-step explanation:
y = x² + 16
To find the inverse, switch x and y, then solve for y.
x = y² + 16
x − 16 = y²
y = ±√(x − 16)
Answer: z score is -19
Work Shown:
x = 22 is the raw score
mu = 60 is the mean
sigma = 2 is the standard deviation
z = (x-mu)/sigma = formula to find z scores
z = (22 - 60)/2
z = -38/2
z = -19
The z score of -19 means we are 19 standard deviations below the mean. Anything beyond 3 standard deviations is often considered unusual/rare as most of the data in the normal distribution is within 3 standard deviations (approximately 99.7% of the distribution)
It would be 4mph because the current would move the boat in still water.