Answer:
The slope of this line is 3/4.
Step-by-step explanation:
Solving this equation 3x–4y–12=0 for y puts the equation into the form
y = mx + b, where m is the slope of the line.
One way of solving for 4y here is to add 4y to both sides, obtaining:
3x - 12 = 4y
Dividing all three terms by 4 yields
y = (3/4)x - 3
The slope of this line is 3/4.
Answer:
2.5 or 2 1/2
Step-by-step explanation:
15 divided by 6
6 and 3/4 times 4....
6 times 4 is 24
4 times 3 is 12, so 12 over 4 is equal to 3
And 24 plus 3 is 27, so 27 hours is what i believe the answer shoudl be
Answer:
7 hours
Step-by-step explanation:
15 dollars +15 dollars 30 dollars=2 hours. 5 dollars left 15 divided by 3, 5 dollars. 3 divided by 3 = 1 so 1 hours is 5 dollars. My explaining is not good.
Answer:
-0.89 is within the central 95% of the distribution, it is neither extreme or unusual.
-2.225 is outside the central 95% of the distribution, it is extreme and unusual
Step-by-step explanation:
We have to:
μ = 95
σ = 40
M = 86.1
The central 95% of the unit's normal distribution is between z = ± 1.96. Therefore if it is within this range it is not extreme, nor unusual; but if it comes out of this range it is extreme and unusual.
Case 1.
n = 16
The formula to use is the following:
z-score = (M - μ) / σS
Where σS = σ / (n ^ (1/2))
Replacing the values:
σS = 40 / (16 ^ (1/2)) = 10
z-score = (86.1 - 95) / 10 = -0.89
Since this z-score -0.89 is within the central 95% of the distribution (± 1.96), it is neither extreme or unusual.
Case 2.
n = 100
Replacing the values:
σS = 40 / (100 ^ (1/2)) = 4
z-score = (86.1 - 95) / 4 = -2.225
Since this z-score -2.225 is outside the central 95% of the distribution (± 1.96), it is extreme and unusual.
